No review today–here is some original fiction instead.
“Unbound” is a term coined by Big Finish Productions, the creators of many Doctor Who audio dramas. It refers to stories in alternate universes, where something happened differently–and then, what happens next? An Unbound story in Doctor Who terms is equivalent to Marvel’s “What If…?” stories, or Dark Horse Comics’ “Star Wars: Infinities” comics (for the oldtimers like me in the crowd).
I wrote this story a few years ago for a charity anthology of Unbound stories, but that didn’t pan out for me, so I’m posting it here. Zero Sum asks the question, “What if the Fifth Doctor’s sonic screwdriver hadn’t been destroyed?” Sometimes it only takes a small event to change a life. I hope you’ll like it.
Several Classic era stories are referenced here, and familiarity with them will help, but is not required; those stories include Logopolis, The Visitation, Castrovalva, Earthshock, Mawdryn Undead, and the six stories in the “Key to Time” arc: The Ribos Operation, The Pirate Planet, The Stones of Blood, The Androids of Tara, The Power of Kroll, and The Armageddon Factor.
This story has also been posted to my writing blog, Timewalkerauthor, and to Reddit’s new community, /r/WhovianFanfiction (come out and contribute!).
London, September 1666
One could be locked in a lot of cells in five lifetimes. The Time Lord called the Doctor knew it firsthand; he’d been locked up more times than he could count. This one, located in a particularly grimy cellar, was not one of the better cells he’d experienced, but it was hardly a time to be choosy. If only he wasn’t wearing manacles…
He fumbled in one of his voluminous coat pockets, searching for something to help his predicament. The sonic screwdriver? No, not at the moment—but it tumbled to the floor as he searched. “Oh, for a proper key!” Still, he couldn’t afford to be without it; and he quickly knelt and scooped it up, transferring it to the other pocket before resuming his search. He was still searching when the Terileptil leader entered the room and ordered him to remain still.
Earth Orbit, circa 65,000,000 BC
“Please hurry, Doctor,” Nyssa shouted. “We must get Adric off the freighter!”
“The console’s damaged,” the Doctor replied. “Working on it, though!” He pulled his sonic screwdriver from his coat pocket and leaned into the fissure in the console. “Ahh!” he yelled, shaking his hand as sparks flew.
“There’s not enough time!” Tegan said.
“There will be!” The buzz of the screwdriver came from inside the gap between console and time rotor. “Nyssa, set the coordinates, quickly! Tegan, grab—“ “ —This?!” Tegan shouted, and brushed past the Doctor, cyber-gun in hand. The Doctor managed a quick glance toward the inner doors, where the final Cyberman aboard was staggering in, just in time to see Tegan dispatch it with the weapon. She threw the gun down before stumbling back toward the console, but there was a look of triumph on her face.
“Coordinates in!” Nyssa said. No sooner had she spoken than the Doctor shoved her out of the way and threw the dematerialisation switch.
In the vortex, Time is everywhere and nowhere, and as a consequence it means very nearly nothing. Before the TARDIS could materialize at its destination, the Doctor slapped a control, bringing the time rotor to a halt, leaving the ship hanging in the vortex. He let out a sigh of relief, and took a moment to look over his companions. “Is everyone alright?” He helped Nyssa to her feet from where she had fallen, murmuring an apology; then he gave Tegan a cursory examination. Satisfied that no one was injured, he turned back to the console. “We successfully removed ourselves from events before the, well, the inevitable conclusion,” he said, “and as a result we’ve bought ourselves some time.”
“But what about Adric?” Tegan said. “That freighter will have crashed by now!”
“Yes, I’m quite sure it has,” he said, “for someone, somewhen. But for us, it has yet to happen, until we emerge from the vortex again. We can’t go back and change anything we’ve already experienced, but we can try to land at just the right place and time to change what we haven’t.”
Tegan frowned, not grasping it yet; Nyssa stepped in to explain. “He’s saying that we can’t, say, go back to twenty minutes before we left and prevent Adric from staying on the freighter, because we’ve already seen it happen. For us, it’s set in stone. But we can land on the freighter in the same minute in which we dematerialised, and rescue him off it, because for us, his fate isn’t sealed yet.”
“Correct,” the Doctor said. “And the spatial coordinates you laid in are correct, or close enough; but to land with that type of temporal precision, I’ll need to finish these repairs. I don’t dare try it with this much damage.” He glanced down at his sonic screwdriver. “I’ve no idea what I would do without this thing.” Looking up, he gestured at a nearby roundel. “Tegan, there is a toolkit in that storage bin, if you wouldn’t mind; and Nyssa, I could use your help.”
Adric leaped back as the console before him exploded, then turned to see the last Cyberman on the freighter collapse to the deck. He sighed, and turned back to the monitor. “Now I’ll never know if I was right.”
He tore his eyes away from the screen as, behind him, a wheezing, groaning sound filled the air. As the TARDIS materialised with its familiar thump, he was already moving; Tegan met him at the door, slamming it behind him. Seconds later, the freighter, minus one TARDIS, exploded.
Earth Orbit, circa 1983
It still baffled Adric that there could be two of this old soldier-turned-schoolteacher, the Brigadier; but there was no question that it was true. And at the moment, it was all that he and the strange (and apparently non-human) schoolboy, Vislor Turlough, could do to hold this younger version back. “I say, let go of me!” the Brigadier said. “Didn’t you hear that?” Showing surprising strength for his age, he shoved Adric off of his right arm; then he twisted and got a lock on Turlough’s wrist, and sent him rolling across the deck of the starship. Before they could recover, he hurried through the nearby laboratory door.
Adric and Turlough cleared the threshold just in time to see the younger Brigadier and his older counterpart raise their hands, and touch. A blinding flash of light and force sent them flying.
Some time later
The lights of the console room were low; even a time capsule sometimes must bow to the needs of its inhabitants, and maintain some form of day and night. Tegan, Nyssa, and Turlough were elsewhere, presumably asleep in their quarters, when Adric entered the room. The Doctor sat in an old, oak chair near the entrance door, one piece of the odd collection of furniture which seemed to appear and disappear in the room at the Doctor’s whim. He was deep in a thick, leatherbound book, but set it aside when Adric arrived. “You’re up late, Adric. What can I do for you?”
Adric seemed hesitant to speak; he glanced around at the room before leaning against the console. “You don’t sleep much yourself, Doctor.”
“Oh, here and there, when I need to, but sometimes I forget when that is,” the Doctor said. “But I don’t think you came to ask me about my sleeping habits.”
“Right to the point, eh?” Adric took another look around, and then nodded. “Alright then. I suppose that’s just as well.” He paused. “Doctor, I haven’t brought it up lately, but…I still want to go home. You know… to Terradon, or… or wherever my people landed. In E-Space.”
He expected the Doctor to shut him down, but to his surprise, the Doctor only nodded, looking thoughtful. “You’ve given more thought to how to make it happen, I suppose.” The charged vacuum emboitment, or CVE, which led to E-Space had been destroyed with most of the others at the Master’s destruction of Logopolis. The memory was always fresh in the Doctor’s mind; fully a third of the universe, including Nyssa’s home in the Traken Union, had fallen to runaway entropy at that time. No mass murderer in the history of the universe could hold a candle to his old friend-turned-enemy the Master now. Regardless, E-Space was closed; perhaps the Time Lords could create a route to the minor universe, but the Doctor was in no position to ask them.
Adric grew more confident at once; he had prepared for this. “It’s a matter of mathematics,” he said. The calculations… well, they aren’t easy, but… but, they’re just numbers! It can be done. And I’m close! I know I am!”
The Doctor nodded again, thinking. When he spoke, it seemed to be a new topic. “Adric, why do you want to leave the TARDIS?”
Had he said it with any kind of hurt, or pleading, or anger, or resentment, Adric might have bristled. Instead, the question held only one feeling: honest curiosity. The Doctor, it seemed, really wanted to know the answer—and now Adric paused, wondering if he himself knew the answer. “Because… well… it’s getting a little crowded here, isn’t it?” His meaning was clear; but again, the Doctor only nodded, and waited. Finally Adric looked away. “I don’t really belong here anymore.”
“Adric,” the Doctor said, “you’ll always have a place here, as long as you want it.”
“But it’s not the same, is it?” The sudden outburst seemed to startle even Adric, but he kept on. “When I first came aboard, it was you and me and Romana and K9, and you were…”
“—Different,” the Doctor completed. “I may have been a different man, but I haven’t forgotten him. Go on.”
“Alright,” Adric said, “you were different. And you’re a genius, and so was Romana, and of course K-9, when I was the only one I’d ever known. And suddenly I had so much to learn, and it was… it was…” He faltered.
A moment passed, and then the Doctor saw it. “Adric… we were like a family to you, weren’t we? Romana and I, you saw us as, sort of, your—“
“I never really knew my real parents,” Adric interjected. “Not well, anyway. So, yes, I guess… anyway. And then Romana stayed behind, and K9 went with her, and then you… changed…”
“I see where this is going, I think,” the Doctor said. “It was at the same time that Tegan joined us, and Nyssa—and now we’ve added Turlough to the mix. I suppose it is getting a bit crowded.” He stood up, and stepped over to the console, then put a hand on Adric’s shoulder. “Adric, you will always have a place here. I told you that, and I meant it. And, though you may not see it now, Tegan and Nyssa both care for you very much. You weren’t here to see their reaction when we nearly lost you, but they would have made you quite proud, I think. Turlough… well, he has a lot of growing to do.” He frowned for a moment, then went on. “But, regardless, I want you to choose a path that will make you happy. If you are happy here, so be it—but I won’t try to compel you to be happy here. If your happiness means going back to E-Space, then I will do whatever is in my power to take you there.” He met Adric’s eyes, and the boy managed a smile. “Now, what do you need to finish your calculations?”
Adric had the answer ready. “I want to go back to Logopolis.”
“But Doctor,” Tegan objected, “Logopolis was destroyed! Along with—“ She faltered, and glanced at Nyssa.
“Oh, go ahead and say it,” Nyssa said. “Along with Traken. It hurts, of course, but there’s no dancing around it. And, Doctor, she’s right! How can we go back there when it doesn’t exist anymore?”
“Well, to be perfectly correct, she’s wrong,” the Doctor said. He worked his way around the console as he spoke, not meeting anyone’s eyes, instead checking settings and flipping switches. He was in a state of excitement—any challenge always had that effect on him—but one could tell he was anxious about their reactions as well. “Logopolis, the planet, still exists. The city, and the people, ceased to exist due to the increasing entropy as the Master closed the CVEs. But, when the mass inrush of entropy took place, it was directed outward from Logopolis onto the rest of the universe.”
“Okay,” a new voice said, “so what?” Turlough had kept silent during most of the Doctor’s revelation of his plan to return to Logopolis, but now he spoke up. “If that’s true, then going there won’t accomplish anything. And if I understand this correctly, then we can’t go back to when the Logopolitans were still alive, because we—well, the four of you anyway—have already been there. We can’t change events.”
“Very good, Turlough,” the Doctor said. “And you are correct. Violations of the first Law of Time tend to create dire circumstances, paradoxes. We can’t risk it. But!” He made a final adjustment and then stopped, resting his hands on the console. “There is a way around it. Honestly, it’s so simple, I’m surprised you haven’t seen it already.” He glanced at Adric, who waited against the wall. “Do you want to explain it?”
For his part, Adric was subdued; but there was excitement in his eyes. “We go back to an earlier time, before our first visit to Logopolis. Probably several years earlier, at least.”
“Exactly!” the Doctor interjected. “We want the Logopolitans at the height of their powers, but before any hint of their upcoming… well, their demise.” That thought seemed to bring him back to reality a bit, and he looked at them soberly. “But they absolutely must not be told what is coming. I don’t need to tell any of you how knowing the hour and the manner of your own death could be a problem. Don’t you think it would be easy for me to find that out, using the TARDIS? But I shield you from that knowledge, because no one should have it. Not even me. Now, extrapolate that notion to the Logopolitans. Their deaths had an enormous impact on the universe. What would happen if they knew enough to prevent it?” At that last, his gaze lingered on Nyssa’s face.
Nyssa caught his expression. “Don’t worry, Doctor. As much as I would give anything to bring back Traken, I understand. We don’t know the ramifications for the rest of the universe.”
“Or time itself,” the Doctor replied. “Or even for us. We may not be visiting our own history directly, but our actions on this trip have the potential to change our own past. We may not directly violate the Laws of Time, but we can certainly do so indirectly.” He looked at each of them in turn. “We must be very careful.”
With that, he threw the dematerialization switch, sending the TARDIS into the vortex.
The TARDIS stood, half-hidden behind a rocky crag, on a hillside a mile from Logopolis. Tegan, Nyssa, and Turlough sat on the boulders scattered in the vicinity, watching as the Doctor and Adric, tiny in the distance, headed for the oddly helical arrangement of low stone buildings that comprised the city. Something was odd about the view; Tegan had caught it and remarked on it at once upon their arrival. “Where’s the radio telescope?”
“Remember that we’ve come to an earlier point in the city’s history,” the Doctor had said. “The universe’s entropy hasn’t reached critical mass yet, though surely the Logopolitans are aware that it is impending. They won’t have constructed their replica of the Pharos project yet—in fact, the original telescope on Earth has yet to be built. That, of course, means we’ve landed as we expected; the current Monitor of the Logopolitans is, I believe, the grandfather of the Monitor we previously encountered. With any luck, Adric can get what he came for, and we can keep the Logopolitans from handing down word of our visit to the next generation.” With that, he had planted his hat on his head, and made his way down the hill with Adric following.
“And so we wait,” Turlough said, scowling. “For how long? Weeks? Months? This block transfer thing, if it’s so complicated, we could be here for years.”
“Oh, you have someplace you need to be?” Tegan sneered. Despite the Doctor’s odd faith in Turlough, she had yet to grant him any trust.
“Tegan,” Nyssa scolded her. “It’s a valid question. We’re talking about mathematics so complicated and variable that they can’t be done by a computer.”
“Exactly,” Turlough said. “Clearly not even the Doctor understands it, or else he would teach Adric himself. Who knows if this will work at all, let alone how long it will take?”
Tegan scowled. “Adric is no normal person when it comes to mathematics. If anyone can grasp it, it’s him. You’ll see.”
Sensing that the conversation was not going to get any better, Turlough gave it a moment, and then stood up. “Well. If you need me, I’ll be in my room, I suppose.” He turned toward the TARDIS. Tegan made a motion as if to stop him, but Nyssa interrupted her with a look.
“The Doctor,” she said when Turlough had closed the door behind him, “says he has the same privileges as the rest of us. Besides, it’s not like he can fly away without us.”
Tegan’s frown deepened. “Nyssa, there’s something about him, I tell you. I can’t put my finger on it, but eventually I will.” She sighed. “I’ve got a bad feeling about this.”
The TARDIS corridors never confounded Turlough the way they seemed to do to the others. Perhaps sensing this, the Doctor had given him a room further from the console room, down several winding corridors. Turlough wasn’t certain, but he suspected the corridors moved, somehow; but so far he had always found his way.
This time, he had barely closed the door when the floor–the deck? What did one call it in a time ship?–lurched beneath his feet. He felt a wrenching sensation in his stomach, and his vision narrowed as green light sparkled around its edges. For a moment he lost track of time. When his senses reasserted themselves, he found himself on the floor (definitely a floor; too neat for a deck). He clambered to his feet–and found an unwelcome but familiar figure surveying him. “Guardian,” he breathed. “What do you want?”
“Watch your tone, Turlough,” the Black Guardian said. “I’ve come to set you back on track with our arrangement.”
Turlough swallowed, suddenly nervous. This was a being of great power indeed–outside time and space, maintaining the order of the universe, but doing so as a force of eternal darkness and chaos. Turlough wasn’t sure whether to call him evil, but it certainly worked out to the same thing. It was true that he had struck a deal with the enigmatic Guardian: freedom from his exile on Earth in exchange for the task of killing the Doctor. Turlough neither knew nor cared what had led to the Guardian’s frenzied desire for revenge, but he knew one thing: the Doctor had proven to be a difficult man to kill. Turlough remained committed to the cause, perhaps, but he had quickly lost his stomach for the task. “Why should I kill him now?” he demanded. “I’m already free of my exile. Earth is behind me now.”
“But you haven’t returned to your world, have you?” the Guardian said. “You’ve seen the way the Doctor operates his TARDIS. It’s a miracle he ever lands where he intends. He won’t get you to Trion–and that’s if you tell him about it. But you haven’t done that, have you?” Turlough was silent. Some things, like the truth of his homeworld and his own past, couldn’t be shared, even–especially–with the Doctor and his companions. “Only I can finish our bargain and get you to Trion,” the Guardian continued, “and only–only!–if you uphold your end.”
Angrily, Turlough relented at last. It was a trap, and he remained caught in it, if he ever wanted to see his home again. “Fine. I suppose you have a plan? If you haven’t noticed, the Doctor isn’t here at the moment.”
“He’ll return. And he will take you and his pets to the city of the Logopolitans.” Turlough didn’t question it; the Guardian seemed to have as much grasp of time as the Doctor, and possibly more. “Your task will be simple this time. I won’t even ask you to attack him directly. You will simply wait until the right moment… and deliver a message.”
“A message?” It sounded simple, but… “What message? And to whom?”
The Guardian told him.
Adric’s training took eight days. The Doctor returned during the night of the second day, and moved the TARDIS into the city. At the urging of the Monitor–a bald man with the features of his future grandson, but much younger–the group took guest rooms in the city, and attended a reception dinner before being given freedom to roam. The Doctor, however, caught each of them in turn and admonished them to stay close to the TARDIS. “I’ve spoken with the Monitor and urged him to keep our visit off the records,” he said, “but remember that every encounter we make here, and every person to whom we speak, increases the chance that we may change the future. They’ve given us hospitality, and I won’t insult them for it, but… stay close.” He quickly disappeared again, off to audit Adric’s lessons.
On the final day, the Monitor escorted the Doctor and Adric back to the TARDIS. Nyssa and Tegan met them in the surrounding courtyard as they said their goodbyes. “It’s been quite a pleasure,” the Doctor was saying, “and I have to say that I’ve rather enjoyed the lessons as well. Even if,” he added, “they were over my head. It’s not often I can say that, you know.”
“Humble to a fault, Doctor, as always,” the Monitor said with a grin. “And the pleasure is all mine. We Logopolitans have spent centuries shaping our minds toward the thought patterns necessary for these calculations. Even so, you have seen that we require many minds in concert to make our calculations effective. It is a rare and surprising event when we encounter a mind like young Adric’s, born to the ability to grasp it all on his own. He is quite exceptional.” He paused, then added, “Of course, he won’t be able to maintain a steady state of computation for long periods. We manage this by working in shifts, but he is one alone. Still, he can create temporary structures, and permanent ones which do not require maintenance. That should be sufficient for your purposes, I think.”
“Quite,” the Doctor said, a bit hastily. He had made a point of not telling them exactly what Adric intended to create; had he done so, they would surely have insisted on creating the CVE for him, which would have had a much greater chance of upsetting history. “Well, at any rate, we thank you again, Monitor, both for the lessons and for your generous hospitality. But, we really must be going.” He shook hands with the Monitor, and turned toward the TARDIS; then he frowned. “Where is Turlough?”
“He went out walking…” Tegan began.
“I’m here, Doctor!” Turlough interrupted. The group turned to see him entering the courtyard from one of the many passages, flanked by two Logopolitans. The Logopolitans stopped at the entrance, and Turlough crossed to the TARDIS; but a look passed between the duo and the Monitor, who gave them a quizzical frown. “Sorry, I lost track of the time,” Turlough said as he joined the others.
“No harm done,” the Doctor said, and opened the police box door. “Monitor, we’ll be off now, I think. And it looks like those fellows want a word with you.”
“Yes, quite,” the Monitor said; but the Doctor and his companions were already disappearing into the TARDIS. The Monitor shrugged, and went to confer with his subordinates.
The Doctor threw the dematerialization switch the instant the inner doors closed, sending the TARDIS groaning into the vortex. “In a bit of a hurry, Doctor?” Nyssa said.
“Well,” he said, “yes, I suppose so. Oh, no, nothing’s wrong, precisely,” he said, forestalling her next question, “it’s just that… Nyssa, I’ve explained that we Time Lords can perceive the flow of time as a sort of sense, not as clear as most, but a sense nonetheless. And the longer we stay in Logopolis, the more I feel the weight of our every action on the timestream. I think we’re alright, as planned, but it’s best we get away quickly.” He circled the console, setting coordinates.
“So, what now?” Turlough said. “How long until Adric makes his attempt?”
“Well, I don’t know about you, but I feel quite refreshed after the last week. It’s almost been like a holiday. So, if you’re ready,” he said to Adric, “we can get started right away.”
Adric’s usually sullenness was gone, for once, and he nodded. “I’m as ready as I’ll ever be,” he said.
“Right! No time like the present,” the Doctor said. “Or rather,” he added, “the future. Since we’ll need to do this at a time after the closure of the Logopolitan CVEs.” He hit a final control, and the time rotor began to rise and fall.
No one’s eyes were on Turlough as he tugged at his tie and grew pale.
The time rotor slowed, but didn’t stop. “We’ll get a better result if I start while we’re still in the vortex,” Adric had said. “I can set the temporal elements, then build the spatial and dimensional elements on top of them. This CVE will be more stable than the Logopolitan version, because they were forced to work from the spatial components first. I won’t have to work as hard to maintain it, either.”
Now, as the TARDIS slid closer to its target–a point in space far from any civilization, some three hundred years after the destruction of Logopolis–Adric stood with his hands on the console, and closed his eyes. His lips moved, subvocalising, but no sound could be heard. “Is that all?” Turlough whispered to Tegan, who stood for once beside him, against the wall; she shushed him.
On the other side of the console, the Doctor winced. “Are you alright?” Nyssa said, moving to his side so as not to disturb Adric.
“Yes, I… I’m fine, thank you.” He shook his head. “For a moment I felt something… it’s nothing.” He returned his attention to Adric’s face. Long minutes passed, and the Doctor winced again, putting a hand to his temple. “Oh!”
“What?” Nyssa said. Tegan and Turlough had noticed his discomfort by this time, but remained by the wall.
“Nothing, I just… I think I may be feeling some cast-off effect of our journey. Nothing serious, I think.” He straightened. “It will pass.”
At that moment, Adric looked up at him. “Ready, Doctor!”
“Right! Here we go, back to reality!” The Doctor pulled back on the dematerialization switch, and the time rotor picked up speed, sending them careening out of the vortex and back into space.
Everything happened at once. The ship shuddered, hurling Tegan and Turlough to the floor; the three around the console grabbed on and maintained their footing, but only just. The lights dimmed and began to pulse, and the time rotor began to spark and flash red as the TARDIS’s familiar groaning grew loud. Over it all, the cloister bell–the TARDIS’s warning of catastrophic danger–began to toll.
Worst of all–though it took Nyssa a moment to see it–was the Doctor. With the last toss of the floor, the Doctor lost his grip on the console and fell, rolling away from Nyssa. As she watched, light–pale, shot through with sickly prismatic shifts, but pervasive–surrounded him. It was different from last time, perhaps, but it only took a moment to recognize it: the Doctor was regenerating. “Adric!” she shouted. “What are you doing! What’s happening!”
Adric’s eyes were wide now, staring in horror at the Doctor. “It’s not me! I’m not doing this! My calculations were clean, I swear!”
On the floor, the Doctor moaned in apparent agony, and began to writhe. “Well, something’s happening!” The cloister bell’s volume increased, and smoke began to pour from several roundels on the walls; Nyssa recognized them as compartments which housed electronics of various types.
“I don’t know!” Adric shouted. “It’s not me!”
“No,” a new voice said, “It’s me!” All eyes swung toward the scanner, where the Black Guardian’s face could be seen.
“Who are you?” Tegan demanded. “What are you doing to the Doctor?”
The Black Guardian assumed a hurt expression. “The Doctor hasn’t told you about me? How offensive. I am the Black Guardian of Time. Once, your Doctor wronged me in a manner that your mortal minds won’t comprehend. I’ve pursued him since, and now, my revenge is accomplished!” He smiled, an expression made more cruel on his severe face. “And you have none other than Turlough to thank for it!”
Nyssa and Tegan turned to Turlough. He glared at the Black Guardian. “So much for keeping your end of the bargain, Guardian. Throwing me to the wolves, eh?”
“Turlough,” Nyssa said, “you struck a bargain with this monster?”
“Oh yes,” the Guardian said. “In exchange for passage off of the Earth, he agreed to kill the Doctor for me! Shall I tell them what you’ve done, Turlough?” He laughed. “While you were preparing to leave Logopolis, Turlough did a favor for me. Such a small thing… he simply passed a message.”
“What message?” Tegan demanded.
“It should be obvious,” the Guardian said. “He went to the Logopolitans and gave them a warning. He told them what will become of them in two more generations.”
“The Master!” Nyssa exclaimed. “Turlough, you warned them about the Master? The Doctor warned us all not to let them know the future!”
“He said it would be a fair exchange!” Turlough said. “Think about it. If they knew the Master was coming, they would be ready for him. He would never shut down their Pharos project, and the CVEs they created would still be there. That means the universe would still be intact!” He looked at Nyssa. “Nyssa, that means your home would still be there. Traken will still exist! And all it costs is one life.”
“Turlough, you idiot!” Nyssa shouted. “Didn’t you think about how it would cost his life? Even if you overlook the rest of the things the Doctor told us… he only regenerated last time because of what happened at Logopolis!”
Turlough turned his gaze to the Doctor, who continued to twist in pain. The light had grown more intense around him, and was now shot through with red. To everyone’s horror, his hair had gone from short and blonde to curly and dark, and he seemed to have become taller. His face seemed to be in flux; now the gentle mien of the familiar fifth incarnation, now the chiseled features of the fourth. “He’s… he’s de-regenerating?”
“Oh, it’s worse than that, young friend,” the Guardian said. “Your actions have created quite the paradox! The battle with the Master, which you have now prevented, caused the Doctor’s regeneration; but events since that time led you back to Logopolis, and allowed you the opportunity to prevent those very same events. Do you see what you’ve done? The Doctor will stabilize in neither form–and the paradox will tear his TARDIS apart! I applaud you, Turlough. You’ve done something not even I could accomplish!”
Turlough gave another glance at the Doctor, then turned back to the Guardian. “Undo it,” he said. “Undo the paradox! This isn’t what we agreed to!”
“Vislor Turlough, it is exactly what we agreed! And I cannot undo this paradox even if I wished to. My powers do not lie that way. Nor,” he added, “do I have the power to pluck you from the paradox, of which you are now a part. I’m afraid I will not be able to keep my promise to you. But consider, the universe you are bringing about is a better place–” he glanced at Nyssa– “worth the Doctor’s life to you. Isn’t it also worth your own?” His face faded from the scanner.
“Wonderful,” Turlough said, “What do we do now–” He turned toward the others, just in time to see Tegan do a very unladylike thing: she swung a spanner at him, catching him just above the temple. A blinding flash exploded behind his eyes, and then all went dark.
“Damn, but that was overdue,” Tegan said.
“Doctor!” Nyssa shouted. “Doctor!” She hovered over him, afraid to touch him in the throes of regeneration. “Can you hear me? We need you!”
He twisted again, stifling a scream; and then his eyes flew open. Disconcertingly, they were two different shades of blue. “No,” managed to say, in a voice that carried an odd harmonic, as if also in flux. “You don’t need me–” and this time it was the fifth Doctor’s voice– “You need Adric!” Fourth Doctor’s voice. “It’s up to him!” The harmonic flux returned. He let out a piercing shriek that echoed from bass to tenor, and closed his eyes. The regeneration energy seemed to swirl over him.
“Adric?” Tegan said. “What does he mean?”
Adric took a step back from the console. “I don’t know exactly,” he said, “but I know what I can do. I can keep the paradox from tearing us apart, at least for awhile. Block Transfer Computation can do that. Do you know it’s a part of creating a TARDIS?” He shook his head, realizing the urgency of the situation. “It means abandoning the CVE.”
“Adric, if the paradox destroys us, you won’t need a CVE!” Nyssa said. “You’ll be dead with the rest of us!”
He nodded. “Right.” He stepped back to the console and took a deep breath. “I’ll get us back to Logopolis. If anything can overturn this, it’s there. And I can hold us together in the meantime… but I don’t know what to do when we get there. We’re already part of events.” He closed his eyes and began to mutter calculations. Shortly the ship’s shuddering ceased, and the lights ceased their pulsing; but the red glow remained in the time rotor, and the cloister bell continued to sound. Adric reached for the navigation panel, and made a few adjustments; then he threw the dematerialization switch.
No smooth materialization this time–the TARDIS careened out of the vortex and into reality like a grenade into a wartime trench. The battered police box–perhaps more battered than usual–slalomed into the atmosphere of Logopolis at a severe angle, its outer shell heating up until it glowed, then burst into open flame. Inside, Nyssa hauled on the stabilizer controls, desperately trying to drag the crashing ship into a stable flight path, while Adric clung to the console and did his best to hold the ship together. The cloister bell thundered through the console room, louder and faster than before. The TARDIS fell toward the city, then leveled off–but not enough, not enough. Its base struck a Logopolitan house hard enough to tear a hole in the roof; the TARDIS skipped off and tumbled end over end. Internal gravity held its inhabitants on the floor, but inertia sent them skidding around; Nyssa lost her grip on the controls just in time for the ship to crash into an alley. By some miracle, it righted itself in the final impact and fetched up against a wall, sending a cloud of dust and stone into the air.
“Is everyone alright?” Nyssa shouted, picking herself up from the floor. She didn’t wait for an answer, but ran to the Doctor, ignoring her own bruises. He had slid nearly to the exit doors. His features continued to flux, and now his height had begun to shift as well. Energy ran in a mad swirl of colors all over him. “Doctor!” she called as she knelt beside him. “Doctor, stay with us! We’re back at Logopolis, but we don’t know what to do!”
The Doctor only groaned, thrashing about on the floor. In the opposite corner, Turlough and Tegan were picking themselves up; Tegan angrily shoved herself away from him. “Ow…” Turlough moaned, rubbing his head, and then glanced at the scanner. “We’re back at Logopolis? So… we’re, what? Going to prevent the paradox?”
Tegan turned on him. “YOU stay out of this!” she shouted. “You’ve done enough already!”
“Nooo….” the Doctor groaned. “No, he’s… he’s right. Have to stop… but mustn’t… first law!” He collapsed back from the effort.
“The First Law of Time,” Adric said without opening his eyes. He was visibly sweating from the effort of maintaining his calculations. “But… we’ve already broken the First Law! Or rather, Turlough did. He gave the Logopolitans knowledge of their own futures. That’s what caused this.”
“Paradoxes…” the Doctor muttered. “One problem… at a time. Fix!”
Nyssa looked at the others, doubt in her eyes. “I don’t know what he’s suggesting! If we interfere here, we’ll be breaking the First Law again. Won’t that create another paradox?”
“I don’t know,” Tegan said. “But we have to do something!”
“What is the First Law?” Turlough said.
Nyssa gave him an annoyed look, but then realized that he hadn’t been with them long enough to hear it explained. “It’s a law that the Time Lords enforce for the sake of keeping time intact and preventing paradoxes. It says that they mustn’t meet themselves out of order, or meet other Time Lords out of order, or pass on information about the future that has the same effect. It’s that last part that you broke on the Doctor’s behalf by telling the Logopolitans about the Master.” She paused, seeing a strange look on his face. “What?”
Turlough stepped toward the console, thinking. “Time Lords can’t meet out of order, or pass on information.”
“That’s what she said,” Tegan said.
“Adric,” he said, “when have we arrived?”
Adric didn’t have to check the console; he could feel it through his grip on the TARDIS. “About five minutes before you talked to the Logopolitans. If we’re going to do something, it has to be now.”
“Turlough, what are you thinking?” Nyssa demanded.
“I’m thinking,” he said, “that he’s a Time Lord… but I’m not.” Suddenly he slapped the switch that opened the inner doors; and he bolted out, leaving them stunned behind him.
It was Tegan who recovered first. “Come on! I know what he’s going to do. We have to catch him!” She ran for the door. Nyssa glanced at the Doctor, then Adric, and jumped up to run after her.
“Adric,” the Doctor moaned. His voice was more like that of his fourth incarnation now, though his body was more like the fifth. “Adric, can… can you hear me?”
“I’m here, Doctor,” Adric called. “I… I can’t spare the energy to come to you. Too busy concentrating.”
“Adric, you have to… to trust me… do what I say. Ahhh!” He gasped and bent double, then regathered his strength to continue. “The Bl… the Black Guardian… won’t let them… interfere. You… you have to stop him.”
“What? Me?! How?” Adric said. “I can’t–”
“You’re the… the only one… who can,” the Doctor managed. “Block Transfer… it works in… all dimensions… at once. It’s… it’s the only thing that can… can hold him!”
Adric knew it was true. “That makes sense, but… Doctor, if I let go of the TARDIS, it will come apart! And I can’t do both!”
“Trust me! Not all… at once. There will be… a little time… just enough. Do it, Adric… now!”
Adric nodded, and closed his eyes again.
Turlough raced through the narrow streets. Nyssa and Tegan pounded after him. Had they known where he was going, they would have tried to intercept him; but only he knew where he had met the Logopolitans. They narrowed the gap, but it wouldn’t be enough.
He came to a halt as a green swirl formed in the air ahead of him… and the Black Guardian stepped into the street. “Back to play the hero, Turlough? I can’t allow that. You’re too much the villain!” He raised a hand, power swirling around it–and walls of what appeared to be glass appeared around him, trapping him. “What? Impossible! No power in your possession could… Adric,” he said, realizing. “Fool boy! I’ll–”
“No time for that now,“ Turlough said as Tegan and Nyssa rounded the corner behind him. He darted past the imprisoned Guardian, and raced toward the next intersection. At the same moment, another version of Turlough stepped from an angled passageway into the intersection, facing away, and headed down the opposite street. “Just have to catch–”
He didn’t get to finish, as the combined weight of Tegan and Nyssa piled on top of him, driving him to the ground. “Let me go!” he managed. “It’s about to happen! I have to stop him!”
“You can’t!” Nyssa said. “The First Law–”
“It can’t get any worse!” Turlough said. “At least we’ll cure this paradox! It’ll buy us time, and maybe the Doctor or the Time Lords can figure out the rest!” Suddenly the street shook beneath them. A glance back revealed the Black Guardian, surrounded in a nimbus of darkness that thundered against the walls of his prison. He was pouring everything into his attempt to break free–and the city felt his rage. Stones fell from the nearby walls.
“And what were you going to do to him?” Tegan demanded.
“The same thing you did to me!” he grunted. “Tackle him! Stop him from talking to them! Anything!”
Exhausted at last, they released him and fell back on the ground. “Turlough,” Nyssa said, “you can’t do that either!”
“Why not?” he demanded.
“Even if you’re right about the paradox,” she said, “you can’t touch your other self. Remember the Brigadier, on Mawdryn’s ship? The… oh, what did the Doctor call it?” “The Blinovitch Limitation Effect,” Tegan said.
“Right! If you touch your other self, there will be a temporal energy discharge. With time so fragile already, it might be catastrophic! We can’t risk it!
“Then you take him! You already know you can!” He jumped up and started running again as the street shook again, more violently this time. Nodding, they climbed to their feet and ran after him.
They made it only a half dozen paces, before an unearthly screech sounded behind them, and the street shook with its greatest tremor yet. The building to their left collapsed in a roar, filling the street, cutting them off from Turlough. They could just see over the rubble pile; but as they tried to climb, it shifted, sending them back to the ground. “Damn that guardian!” Tegan shouted. “Turlough, do… something! Just don’t touch him! Go!”
He gave them a final look, and ran.
Turlough stopped at the end of the street, where it made an L-turn to the left. Just around the corner, he caught a glimpse of himself, standing in front of the building out of which the two Logopolitans would shortly come. It was only a few paces… but what to do?
Behind him, another building fell in an explosion of dust and stone. His other self looked back; Turlough ducked aside, avoiding being seen. Perhaps the explosion would scare his past self away… but, no such luck.
“Turlough!” a voice called behind him. He turned… and saw the Black Guardian, near the previous intersection. He was still encased in the computational walls, but as Turlough watched, the Guardian flickered and vanished, and reappeared ten paces closer, dragging his prison with him. “It’s too late, boy! Even now they come. You can’t undo this paradox!”
Turlough stared at him for a long moment. “I’m through serving you,” he said. “The Doctor is a thousand times the man you’ll ever be. I trust him to know what’s best for the universe, and for Logopolis, and… and for me. I won’t do what you want again.” He paused. “Or even the first time!” Darting back toward the intersection, he snatched up a fist-sized, jagged rock from the rubble of the fallen building, and stepped around the corner toward his other self.
“No!” the Black Guardian shouted.
“Goodbye,” Turlough said through clenched teeth. Then he drew back his arm, and hurled the stone at his other self.
He had one final moment of clarity, in which he saw the Black Guardian vanish in a scream of rage and a burst of flame. Then the stone struck the back of his other self’s head, and everything went dark again.
Tegan’s head swam as the world coalesced around her. She couldn’t recall passing out, but she saw that Nyssa was waking up as well. What had happened?
Rubble still filled the streets, but the Black Guardian was nowhere to be seen. Nor was Turlough; but from the direction of the TARDIS, a figure in cricketing clothes picked his way around the stones and came toward them. Adric trailed behind him.
“Doctor,” Tegan said, “you’re back to normal!”
“Quite,” he said. “And it’s a good thing, too. As much as I enjoyed being my old self–well, when I was him–one must always look forward, not backward.” He offered a hand to each of them in turn, lifting them to their feet. “And I daresay the Logopolitans will agree. They just saw us off, you know–the past version of us, that is. Since we’ve managed to tear down part of their city, they’ll be glad to see this ‘us’ gone as well.”
“That’s a bit unfair,” Tegan said. “This was the Guardian’s work, not ours.”
“True,” he said, “and a nasty bit of work it was, too.” He glanced back at Adric. “But, thanks to Adric here, it was not as nasty as it could have been. A job well done, Adric.”
“So, what happened, exactly?” Nyssa said. “And where’s Turlough?”
“Well,” the Doctor said, “I think Adric can answer that better than I can. After all, by way of his battle with the Guardian, he was here, after a fashion.” He nodded at Adric.
“It’s…” Adric started, then paused. “Well, maybe we’d better look. I want to be sure of what I saw.” He led the way over the rubble, and past a second pile further down the street, to an L-turn. Rounding the corner, he stopped. “I was afraid of that.”
Nyssa made the turn, and stopped short. “Oh. Oh, no.”
Tegan came after her, with the Doctor following. When she saw what awaited them, she stopped, and made as if to speak, then closed her mouth. Finally she said, “So that’s how he fixed it.”
Ahead of them, Turlough–the past version of him–lay still on the ground. Blood pooled around his head, and stained a large, jagged rock beside him. Of the present version of Turlough, there was no sign. “Yes,” the Doctor said gently, “it seems our Turlough sacrificed himself to stop the former Turlough from doing the Black Guardian’s task.” He paused. “Quite noble of him, wouldn’t you say? I think we all underestimated him.” At his side, Tegan nodded, and wiped her eyes with her sleeve.
“Doctor…” Nyssa said. “I know it was all in the moment, and we all barely had time to think, but… couldn’t he have talked to himself, or something? We didn’t let him tackle himself, because of the energy discharge–”
“Which was the right decision,” the Doctor said. He closed his eyes and concentrated. “A paradox, you understand, is a closed time loop. It repeats itself, ad infinitum. This paradox has been transformed into an open loop by Turlough’s sacrifice. It circles back on itself only once, and then rejoins the normal flow of time. It’s hard for me to feel the flow of that loop, now that we’re on the other side of it, but… I sense that it could have worked out no other way.” He looked at each of them in turn. “Turlough instinctively grasped something that there was no time to explain. You see, Time seeks to close paradoxes. It can’t tolerate them, as a rule. And also as a rule, violations of the first Law of Time tend to create paradoxes. There are some exceptions, but that’s what generally happens. I tried to warn all of you not to violate the first law. That could have created a second paradox on top of the first, and time would have come apart catastrophically here. If Turlough had talked to himself, it would have created such a violation. Similarly, if he had touched his other self, the discharge of temporal energy would have torn time apart, as you rightly assumed. The only safe course was to take action that didn’t pass knowledge to his past self… and that’s what he did. Rather violently, I’m afraid, but I hardly see that he had any alternative.” He fixed both women with a stare. “And lest you go to blaming yourselves, remember that had you communicated with past Turlough, it would also have transmitted information, and been a violation of the first law.”
“So, why did this not cause another paradox?” Adric said. “I mean, if Turlough prevented himself from telling the Logopolitans, then the events that led us to come and stop him never would have happened. We shouldn’t exist here, now.”
“Yes, well… remember that I said that time seeks to close paradoxes–or open them, as the case may be. In doing so, it can’t tolerate a violation of the first law–but it can tolerate violations of lesser laws. Our being here, as relics from a timeline that ceased to exist with the opening of the loop, is a violation of one of those lesser laws; but time is quite happy to put up with it, in order to correct the greater paradox. The only concession is that the present version of Turlough ceased to exist. Well, and also, the moment of correction to the timeline was a bit much for the two of you, being outside the TARDIS as you were. That’s why you passed out.”
“You make it sound like time is alive,” Tegan said.
“Hmm… I suppose after a fashion, it is,” the Doctor mused. “At the very least, it’s non-linear… and it holds mysteries that even the Time Lords have yet to uncover.” He clapped a hand on her shoulder, and turned her toward the TARDIS. “Let’s be going, then.”
The Doctor held the TARDIS door for Nyssa and Tegan. “We’ll swing around and collect Turlough’s body before the Logopolitans move it,” he called after them. “He deserves a proper burial… but not here, where it might risk more paradoxes.”
As Adric made to step inside, the Doctor stopped him. “Adric… what do you think? Do you still want to construct a CVE? Return to E-Space?”
Adric dropped his eyes for a moment. “I think,” he said, “that the things I wanted have caused us enough trouble for now.” He paused. “Maybe someday, when we can be sure the Black Guardian won’t try to interfere. But not today.” He ducked past the Doctor, and inside.
The Doctor watched him go, and smiled. “Good answer.” Then he stepped inside, and closed the door… and with a familiar groan, the TARDIS slipped away.