It took about an hour for Professor Yana to be completely convinced that the rocket would actually fly. He made the Doctor explain what he had done over, and over again until he finally nodded and sent a message to Lt. Atillo. The other man had been shocked at the report from Yana that the rocket "is ready" and that "we can finally send people to Utopia."

Lt. Atillo, in fact, hadn't believed Yana at first. But the older man had pressed until, finally, Lt. Atillo also agreed that the rocket was ready. Once he had agreed, Lt. Atillo had the honor of giving the first boarding message.

Even from inside the lab, which was far away from the families who lived in the silo, the group could hear the people cheering at the message, at the news that they were finally heading to Utopia.

"All passengers prepare for immediate boarding. I repeat, all passengers prepare for immediate boarding."

But there was also work to be done. And the group quickly found themselves working with Professor Yana on different machines, all spread out through the room.

"We need circuit boards," the Doctor said as he eyed something with a frown. Turning to Martha and Chantho, he quickly ordered them to go and grab them. Chantho had stared at him blankly, clearly not knowing a circuit board was, but Martha just nodded and took the female alien with her.

Unable to work on what he had been working on, the Doctor headed over to Yana and started to work on the opposite side of a clear, oddly colored circuit board.

As he picked up a cord, he frowned and brought it up to his nose to sniff. "Is this..?"

Yana nodded, his face reddening as he explained: "Yes, gluten extract. Binds the neutralino map together."

The Doctor stared at Professor Yana, his mouth hanging open. From where she was, Kayla couldn't help but giggle at his shocked expression. It was often for the Doctor to be impressed by someone, or to be speechless.

But he quickly found his words to practically blurt out: "But that's food. You've built this system out of food and string and staples. Professor Yana, you're a genius."

Yana just scoffed and shook his head. "Says the man who made it work," he protested.

"Ooh…it's easy coming in at the end but…you're stellar. This is…this is magnificent. I don't often say that 'cause…well, 'cause of me." The Doctor paused after he was done speaking and then added, "Or Kayla. She's just amazing. Truly stellar as well." He smiled as he felt a warm surge of happiness from Kayla at the compliment.

Yana nodded. If he wasn't so busy working, he probably would have turned to look over at the brunette, who was also working. But he would have to let his curiosity remain. "Well, even my title is an affectation. There hasn't been such a thing as a university for over a thousand years. I've spent my life going from one refugee ship to another," he explained.

Those had been very hard times. Alone and a child, he was often put to work at the refugee ships to get the same food that other children got simply because they had parents. Sometimes he would be made fun of, or bullied. And since there were no adults to stick up for him and he was very scrawny as a child, he had been forced to suffer in silence. It wasn't until he hit a growth spurt did the treatment stop.

So lost in the less than pleasant memories, it took a bit for the Doctor's words to pull him out. But he heard enough of his proclaim that, had he been born in a different time then he would have been revered throughout the galaxies for him to shake his head. "Oh, those damned galaxies. They had to go and collapse. Some admiration would have been nice. Just a little. Just once." He added at the end, a small smile at the idea of a different childhood where his brain was known and he wasn't picked on by the others.

Perhaps he would have been a master of knowledge.

From across the circuit, the Doctor gave Yana a smile. "Well you've got it now." And then his smile faded as he voiced what he had realized as soon as he had taken a look at the footprint. "But that footprint engine thing. You can't activate it from onboard. It's gotta be from here. You're staying behind."

Yana gave the Doctor a weary smile and a simple nod. "With Chantho. She won't leave without me. Simply refuses."

"You would give your life so they could fly."

"Oh, I think I'm a little too old for Utopia. Time I had some sleep."

'Doctor…' Kayla's voice came hesitantly, making the Time Lord pause. 'We need to save this man. And Chantho.'

'Of course,' the Doctor agreed instantly. 'He'll love the TARDIS.'

As if his thought was a cue, over the tannoy, Lt. Atillo's voice rang out. "Professor, tell the Doctor we've found his blue box."

The Doctor clapped his hands together and gave a shout of: "Ah!"

"Doctor," Jack called. The Time Lord, now excited, bounded over to where Jack was standing to look at the monitor, which showered his TARDIS, in all its glory, safely placed nearby.

Professor Yana, who had walked over at a much slower pace, looked over the Doctor's shoulder with Kayla just next to them. Turning to the older man, Kayla gave him a smile. "Professor, I believe the universe has decided that your sleep should wait."

Leaving the older man to stare at the monitor, Kayla went to the TARDIS and started to help the Doctor. Usually, this would have been done while they talked mentally, and if they were in the same room then the Doctor would often give her small little kisses. But this was not the cause. And though Kayla longed for how it used to be, she didn't waver in her decision.

She was still very hurt from the realization that her father and her Bonded had lied to her. It felt like a betrayal of the worse kind. She so badly wanted to scream at both of them, pour out all her feeling in one long rant about what they had done. But that wouldn't accomplish anything. She wanted to, after this was all said and done, have a relationship with both of them.

Because she could understand their choice. The Doctor had made it no secret that he could be more than a little overprotective of her, and with the pregnancy it was more so. And as for Jack, he had only the information that the Doctor was giving him. If the only thing Jack had been told was that his presence could cause her pain, then he would likely stay away.

But, Kayla mused, they hadn't consulted with her. She had had no choice in the matter and that hurt. She should have been the one to choose whether or not she could stand to be around Jack, despite the pain. Even the Doctor's explanation about why he wiped her memories didn't hold up because he could have just forced her to sleep through the mental link. Sure, she would have been furious with him, but that wouldn't have lasted once she realized the damage she was causing to her own body.

Yet Kayla still had heavy hearts when she and the Doctor had finished pulling out a long power line. She could feel through the mental link the Doctor sadness and guilt, which made it even harder for her to not turn and give the Doctor a hug and a kiss.

Instead, she stood near the TARDIS as the Doctor inserted the power line into an outlet. "Extra power," he explained. "Little bit of a cheat, but who's counting?" he turned to Jack, who gave him a small nod to show that he was listening to the Time Lord. "Jack, you're in charge of the retro-feeds."

The door opened as Martha and Chantho came back. Upon seeing the TARDIS, Martha smiled. "Oh, am I glad to see that thing," she remarked to Kayla, who gave her a smile in response.

While Kayla had never doubted that the TARDIS would be found, it was still nice to know that they wouldn't have to rely on Jack's Vortex Manipulator. The idea itself was already making her stomach clench almost painfully.

Chantho walked over to Professor Yana, who was sitting on the couch. Kayla watched as she asked: "Chan—Professor, are you all right—tho?"

Yana nodded and clambered to his feet, a slight tinge of red on his cheeks. "Yes, I'm fine. I'm fine," he brushed off with a wave of his hand, though his voice was weaker than normal. "I'm fine. Just get on with it," he said, this time with a stronger voice.

Nearby to Kayla, Jack was instructed Martha. "Connect those circuits into the spar—same as that last lot. But quicker."

Kayla could see Martha's eyes widened at the commanding tone Jack had taken on. And she couldn't help but nearly laugh when Martha response with, "Yes, sir."

Seeing Yana start to head over to something only to fall back onto the seat he had occupied earlier, Kayla walked over to him and placed a hand on his shoulder. She was aware of the Doctor hovering nearby, likely listening in on the conversation. "You really don't have to keep working," she said as kindly as she could. "We can handle it, really."

Yana placed a hand on his head. "It's just a headache. Just—Just noise inside my head. Constant noise inside my head."

The Doctor took a quick step forwards. "What sort of noise?" he asked.

"It's the sound of drums. More and more as though it's getting closer."

Kayla frowned at the older man. The Professor didn't seem like the type to use metaphorical langue to describe his head throbbing as "drums," but who had ever heard of a drumming noise in someone's head?

"When did it start?" the Doctor asked, his face etched with concern and a want to help.

Yana faltered for a moment and then gave the Doctor a tired smile. "Oh, I've had it all my life. Every waking hour. Still, no rest for the wicked." With that final sigh, Professor Yana stood back off and headed over to resume his work.

Exchanging concerned looks, Kayla followed the Doctor back to where he was working.

'I've never heard someone describe a headache as drums,' Kayla pointed out.

The Doctor frowned and tilted his head. Through the link, Kayla saw small flashes of images that he was thinking of – two boys running through red grass, the now older two boys standing inside a TARDIS, and finally the still older two boys, men now, staring each other down.

'I'm sure he was just being metaphorical,' the Doctor replied, the images fading.

Kayla hummed, not really agreeing but not wanting to outright disagree. At this response, the Doctor frowned. 'I hate it when you do that,' he admitted.

Kayla sent the Doctor a glare. 'And I hate giving definite answers when I haven't formed an opinion,' she snapped back.

The Doctor recoiled. For a long pause, the two worked in an uncomfortable silence that the Time Lord finally broke with a soft, hesitant whisper: 'It killed me, lying to you.'

Kayla looked over at him and then quickly looked back down at her work, trying very hard to not let him see the effect those words had on her.

'I wanted to just tell you so many times. But then I remembered how close I was to loosing you the last time and I was selfish. You would get this expression sometimes, when you were talking about him. I thought you had remembered and most of me was scared at that, but a small part was very happy at the idea.'

Swallowing hard, it took a while for Kayla to gather her thoughts enough to respond in any sort of way. 'Would you have told me if Jack hadn't shown up?'

The Doctor looked down at the work in his hands. 'I don't know Kayla.' He looked up at her with a frown. 'I know that's not the answer you wanted. But it's an honest answer. I'd like to think I would, but I really don't know.'

The rest of their work, until Professor Yana called over to them for help because the connection to Lt. Atillo wasn't working, was finished in both vocal and mental silence.

When Professor Yana did call over to the two, the Doctor was the one who went over to help while Kayla remained with the work. She could vaguely hear the Doctor muttering to himself before he fixed the connection. Pausing to look up, she watched as the older man peered into the computer just as Lt. Atillo's voice came through it:

"Professor, are you getting me?"

Yana nodded vigorously. "I'm here! We're ready! Now all you need to do is connect the couplings. Then we can launch," he growled as the connection cut out and static filled the screen. "God sakes! This equipment! Needs rebooting all the time!"

Martha quickly headed over to the Professor and gave him a smile. "Anything I can do? I've finished that lot." She asked with a gesture to where she had been working.

Kayla also got up as well. "The Doctor and I have finished too," she informed Yana, who gave her a pat on the shoulder, a nod, and a muttered reply of 'good.'

Turning to Martha, Yana got up from his seat and motioned for Martha to sit down in it. "Just press the reboot key every time the picture goes out," he instructed.

Martha nodded. "Certainly, sir. Just don't ask me to do shorthand," she added with a small smile. When Kayla looked over at her with a frown, Martha hastily explained: "Chantho told me some of her stories."

The image of Lt. Atillo came back to the screen and the man asked them: "Are you still there?"

Yana leaned forwards behind Martha so that the other man could see him. "Ah, present and correct. Send your man inside. We'll keep the levels down from here."

There was a pause and then Lt. Atillo nodded, clearly reciving information from somewhere else. "He's inside. And good luck to him."

Yana turned to Jack and instructed him to another machine. "Captain, keep the levels below the red." He ordered. Jack gave a nod.

The Doctor frowned at Yana and the machine Jack was at. "Where is that room?"

"It's underneath the rocket. Fix the couplings and the footprint can work. But the entire chamber is flooded with stet radiation," Yana answered, shuddering at the end.

The Doctor looked over at Kayla who shook her head. Which just made the frown on the Doctor's face to deepen. "Stet? We've never heard of it," he asked with a gesture to himself and Kayla.

Yana did not seem shocked with their lack of knowledge. "You wouldn't want to. But it's safe enough. We can hold the radiation back from here."

On the monitor that Martha sat in front of, Kayla, the Doctor, Professor Yana, and Martha watched as an unknown man work on the couplings. There was a sudden alarm that started to sound, making the Professor turn to Jack. "It's rising…0.2. Keep it level!"

"Yes, sir!"

Just as the alarm turned off, more and more alarms started to go off. The lights in the lab dimmed sharply.

"Chan—we're losing power—tho!" Chantho warned.

Utter chaos broke as the Doctor, Jack, and the Professor all cried out warnings in panicked voices similar to the one that Chantho had used moments ago.

But thankfully, the Doctor ended the calls by yelling to Jack: "Jack! Override the vents!"

That however, turned out to be a task that would take several hours to complete due to their depleted power. So Jack improvised. Despite Kayla objecting strongly to the plan she knew he had thought of, Jack grabbed two live cables and sent, of all things, a smile to the Doctor. "We can jump start the override!"

"It's going to flare, you idiot!" Kayla yelled back at her father even as he held the cables together.

It flared. Kayla could only watch helplessly as Jack screamed as the power ran through them before crumpling to the floor. Through a thick fog, she felt the Doctor's arms wrap around her and she allowed herself to relax into the familiar and warm cocoon they created. She rested against him even Professor Yana and Chantho rushed towards the fallen figure that was Jack.

Martha, however, looked between the Doctor and Kayla and then to Jack. "He comes back, right?" she asked in a low voice.

The Doctor gave her a nod, which solidified Martha's decision to stay back as Chantho moved the cables and Yana looked down at the man.

"Oh, I'm so sorry," he said helplessly, though Kayla was unsure if he was saying his apology to Jack or to the room at large.

Behind Kayla, the brunette felt the Doctor's chest vibrate as he asked Yana, "The chamber's flooded with radiation, yes?"

Yana looked over at the Doctor and shook his head. "Without the couplings, the engines will never start. It was all for nothing!"

"Oh, I don't know," the Doctor muttered there was a pause as the Doctor seemed to weigh the options he had.

'Kayla…you know what I'm about to suggest already, don't you?'

'Of course.'

'Are you okay with it?'

Kayla gave a small nod, which was enough for the Doctor to give his suggestion to Professor Yana.

"It strikes me, Professor, you've got a room a man can't enter without dying. Is that correct?"

"Yes," Yana agreed with a shake of his head at the mere thought.

"Well…" the Doctor cut himself off as Jack gasped for air on the floor and sat up. Looking down at Jack for a moment, the Doctor looked back at Yana and removed his glasses. "I've got just the man."

Jack agreed readily to the plan that the Doctor had, something that surprised even the Time Lord. But the look that Jack gave him, one full of determination, made the Doctor except Jack's agreement wordlessly.

The two raced through the silo to get to the chamber. The Doctor had looked to Kayla and Martha to see if either had wanted to come, but both declined.

So as Jack and the Doctor made it to the chamber, Martha was glaring at the computer while repeatedly booting it up.

"It's not working," she grumbled, frustrated. "I can't get an image."

Kayla placed a hand on her shoulder. "As long as we can talk to them, I'm sure it will be fine."

Hitting the reboot button once more, though nothing happened, Martha spoke to the computer. "We lost picture when that thing flared up. Doctor, are you there?"

"Receiving, yeah. He's inside," the Doctor familiar voice responded.

"Is he alright?" Kayla asked, leaning forwards in a vain hope that that would speed up the answer.

"Oh yes. No harm at all. Not a scratch or a burn."

Yana stared at the computer in shock. "But he should evaporate. What sort of a man is he?"

"He's my father," Kayla replied simply.

Seeing that that answer wasn't enough, Martha jumped in with more of an explanation: "The Doctor and Kayla sort of travels through time and space and picks people up. God, I make us sound like stray dogs. Maybe we are."

Kayla frowned over at her. "You're not stray dogs," she protested. "Without you the Doctor and I would be completely lost."

Martha gave her a small smile, "That's sweet Kayla."

Seeing a pause in their conversation, Yana quickly interjected with a question. "You travel in time?" her asked.

Kayla turned to face him. "Yes. We travel in the TARDIS, it's that blue box over there."

There was a crackle of static from the computer and then the Doctor's voice came through it. "When did you first realize?"

There was a pause and then Jack's voice came in a response to the Doctor's question. "Earth 1892. Got in a fight in Ellis Island. A man shot me through the heart. Then I woke up. Thought it was kinda strange. But then it never stopped. Fell off a cliff, trampled by horses, World War I, World War II, poison, strangulation, a stray javelin…" his voice trailed off meaningfully. "In the end, I got the message, I'm the man who can never die. And all that time you knew."

Martha looked quickly over to Kayla, but the brunette's face was a perfect mask that displayed no emotion. Swallowing at the sight, Martha placed a small hand on Kayla's, and while Martha's hand was squeezed in response, Kayla's face remained the same as she listened to the conversation between her Bonded and her father.

"That's why I left you behind. It's not easy even just…just looking at you Jack, 'cause you're wrong. I didn't want to expose Kayla to that as well. I did tell her about you. She obsessed over it. She wouldn't eat, she wouldn't sleep, she wouldn't move from the console room. I regret what I did, truly, but left with the option of watching my Bonded kill herself slowly, I'd do it again."

There was a long pause that felt like years to Kayla before Jack responded. "She really loves you, you know?"

"Yeah."

"I don't know if she'll get over this, though. You lied to her, Doctor."

"You agreed to it when I suggested it."

"Of course I did. You told me I might cause pain to my daughter."

"And whenever she looks at you, whenever she touches you, that's exactly what you're doing. We're Time Lords. It's instinct. It's in our guts. You're a fixed point in time a space. You're a fact. That's never meant to happen. Even the TARDIS reacted against you—tried to shake you off. Flew all the way to the end of the universe just to get rid of you."

"How did she become a Time Lord-"

"Lady. Time Lady," the Doctor corrected suddenly.

"Time Lady, then. Last thing I remember back when Kayla and I were mortals…I was facing three Daleks. Death by extermination. And then I came back to life. What happened?"

"Kayla – and Rose, I suppose."

"I thought you sent them back home."

"They came back. Rose opened the heart of the TARDIS and started to absorb the time vortex when Kayla took it from her."

"What does that mean, exactly?"

"No one's ever mean to have that power. If a Time Lord did that, he'd become a god, a vengeful god. But she was human. Everything she did was so human. She brought you back to life but she couldn't control it. She brought you back forever. That's something, I suppose. The final act of the Time War was life."

"That doesn't answer how Kayla became a Time Lady," Jack pointed out.

"Kayla and I ended up forming a mental bond. I didn't notice it until it was too late and I hoped that the stories about what happened when a Time Lord and a different species formed a mental link were just that, stories. I was wrong."

"And Rose? What happened between the three of you?"

"Like I said, she's in a parallel universe with all her loved ones." Before Jack could press him on the subject, the Doctor quickly asked: "Do you wanna die?"

There was no answer from Jack. "Oh, this one's a little stuck," he said in reference to one of the couplings.

"Jack?" the Doctor pressed.

"I thought I did. I dunno. But this lot, you see them out here surviving and that's fantastic," Jack breathed at the end.

Kayla felt a tear slide down her cheek, and she reached up with a hand to wipe it away. She had been quietly sitting there, listening, as her hearts broke into a million pieces and then was smashed on by what the Doctor and Jack were saying to each other.

"You may be out there somewhere," the Doctor suggested suddenly.

"I could go meet myself."

"Well, the only man you're ever gonna be happy with," the Doctor pointed out. And Kayla laughed and cracked a small, though watery, smile.

"This new regeneration, it's kinda cheeky."

"I never understand half the things he says," Martha said with a shake of her head. Turning around, she paused at the sight of Professor Yana, who appeared to be so, so sad. "What's wrong?" she asked him, prompting Kayla to turn around and Chantho to rush over to him.

"Chan—Professor, what is it—tho?"

Yana sighed and shook his head, looking every bit of the old man he was. "Time travel. They say there was time travel back in the old days. I never believed. But what would I know? I'm just a stupid old man. Never could keep time. Always late, always lost. Even this thing never worked," he grumbled as he pulled out an old and battered fob watch with a group of interlocking circles on the cover. Despite the dirt on it, the silver still shined in the light.

"Time and time and time again. Always running out on me," Yana said with a small shake of the watch.

But Martha and Kayla weren't paying attention to him. The two were exchanging worried expressions. Both of their minds had instantly jumped to the same fob watches that the Doctor and Kayla had when they turned themselves human.

"Can I have a look at that?" Martha asked as she got up from her seat.

Yana looked down at the watch and that at confusion. "Oh, it's only an old relic," he chuckled to himself. "Like me."

Kayla frowned at him as she also got to her feet. "Do you know where you got it?" she asked him hesitantly.

"Hm? I was found with it."

"What do you mean?" Kayla pressed, her mind already whirling.

"An orphan in the storm. I was a naked child found on the coast of the Silver Devastation. Abandoned with only this," Yana explained, a far away look in his eyes as he delved into his memories.

"Have you opened it," Martha asked him.

Yana frowned, his brow furrowing. "Why would I? It's broken," he pointed out.

"How do you know it's broken if you never opened it?" Martha asked even as Kayla hissed her name to her sharply. Though the brunette didn't remember much about her time as human, she knew that if someone had peaked her interest about her fob watch the way that Martha was, she would have opened it.

Not noticing Kayla's hiss, Yana just looked down at the fob watch in his hands. "It's stuck. It's old. It's not meant to be. I don't know."

Stepping forwards, Kayla took the fob watch out of Yana's hands and looked down at it. Her hearts skipped several beats as she saw the circles on the front were near a perfect match to the ones that were on the Doctor's and Kayla's watches. Not able to look at it any more, Kayla handed it back to the old man.

"Does it matter?" Yana asked the two women, a frown on his face.

Martha exchanged a horrified look with Kayla. "No. It's…nothing. It's…Listen, everything's fine up here. We're gonna see if the Doctor needs us."

Turning away quickly, Kayla and Martha hurried out of the lab. Once they exited the threshold, the two broke into a run. Too panicked to gather her thoughts, Kayla knew that it was useless to try and contact the Doctor mentally.

She had no idea how to explain it, but when she had looked down at the fob watch, she had felt a horrible sense of foreboding, and a shiver at run up her spine. It felt like someone had stepped over her grave many years in the future.

And that feeling made her legs pump faster. Everything in her was telling her to get to her Bonded, to get to the Doctor.

When the two women arrived in the control room, the Doctor looked up at them worried. But after a quick assessment of Kayla, he went back to his work. "Ah, nearly there. The footprint is a gravity pulse. It stamps down, the rocket shoots up. Bit primitive. It's gonna take the both of us to keep it stable," he explained.

Kayla moved in front of the Doctor, blocking him from his work. "Doctor, it's Yana. He has a fob watch Doctor and it's practically identical to the ones we had."

The Doctor frowned at Kayla. "Are you sure?" he asked her.

"I asked him. He said he's had it all his life," Martha added in.

Jack stared at the trio with a frown. "So he's got the same watch."

"Yeah, but it's not a watch. It's this chameleon thing," Martha explained.

The Doctor shook his head furiously. "No, no, no. It's this…This thing, this device, it rewrites biology, changes a Time Lord into a human."

"A chameleon arch," Kayla supplied, causing the Doctor to give her a grateful nod. "It's the same watch, Doctor. I swear."

"It can't be," the Doctor protested.

Like before, Kayla saw the images that flashed through the Doctor's mind. But this time they were all the same image of one gruesome war.

An alarmed blared, giving the Doctor a distraction that he sorely needed. He quickly started to fix it.

"That means he could be a Time Lord. You and Kayla might not be the last ones."

"Jack, keep it level!" the Doctor yelled back at him, his breathing hard.

Martha frowned at the panicked reaction the Doctor was having and the worried expression on Kayla's face. "But that's brilliant, isn't it?" she pointed out.

"Yes, it is. Course it is. Depends which one. Brilliant, fantastic, yeah. But they died, the Time Lords. All of them, they died," the Doctor shook his head as more images flashed through the mental link, all of them the same war.

"Not if he was human," Jack pointed out.

The Doctor ran his hands through his hair. "What did he say?" When there was no answer to his question, he repeated it again at a yell, "What did he say?"

Martha inhaled sharply at the Doctor's reaction. "He looked at the watch like he could hardly see it. Like that perception filter thing."

"What about now? Can he see it now?"

It was Kayla who answered this time. "He might. He will soon."

The Doctor ran a another, frantic hand through his hair while Jack pointed out behind him, "If he escaped the Time War then it's the perfect place to hide. The end of the universe."

"Think of what the Face of Boe said. His dying words. He said…" Martha's voice trailed off as the Doctor launched the rocket from the controls.

And then both Kayla and the Doctor made eye contact, their eyes widening as they both sensed something knew…something that Kayla could tell from the Doctor's thoughts that he had felt before.

With shaking hands, the Doctor turned to the computer screen and typed 'Y,' 'A,' 'N,' 'A.'

"You are not alone," Kayla whispered, watching the letters flash on the screen. "How could he have known?"

Shaking his hands, the Doctor grabbed a phone off of the controls and yelled harshly into it, "Lieutenant, have you achieved velocity? Have you done it? Lieutenant! Have you done it?"

There was a pause, and then Lt. Atillo responded: "Affirmative. We'll see you in Utopia."

Not correcting him, the Doctor chose to just nod. "Good luck," he said as he hung up.

Turning to the group, he grabbed Kayla's hand and pulled her with him at a run. Jack and Martha followed behind the couple.

They were too late though. The door that Kayla and Martha had run through only minutes before was closed. Frustrated, the Doctor all but shoved the sonic screwdriver to the door while Jack started to work on the keypad.

"Get it open! Get it open!" the Doctor yelled repeatedly, his voice cracking with fear. He turned around, his eyes widening as he heard the Futurekind, which had someone gotten into the Silo, rush down the hall towards them.

Pushing Kayla in front of him, he urged Jack again, and thankfully, the man was able to open the door and they rushed through.

But they still had so long to go, too long. Though they ran as quickly as they could, the Futurekind were soon close behind them.

At an intersection, Jack looked around before pointing down a hall, "This way!" he yelled to the others, already running down it himself.

He was right, of course. And the group arrived at the lab door only to find it closed and locked as well. As Jack started to work on the keypad, the Doctor peered into the window at the top of the door. "Professor!" he yelled while pounding on the glass. "Professor, let me in! Let me in! Jack, get the door open!"

Clearly, the Professor walked away, because the Doctor growled in frustration before he attempted again. "Professor! Professor, where are you?! Professor! Professor, are you there?! Please, I need to explain! Whatever you do, don't open that watch!"

"They're coming!" Martha warned, looking behind at the corridor. Even she could hear the frantic footsteps and the wild woops from the Futurekind.

"Professor!" the Doctor all but screamed, his voice cracking. "Open the door, please! I'm begging you, Professor! Please! Listen to me! Open the door, please!"

Several things happened in short succession. There was a gun shot, Jack opened the door, and the group – the Doctor and Kayla at the front – rushed inside to face down the older man, who was pressing against the TARDIS with blood already staining his shirt. The Doctor took a step forwards, but the man rushed inside the TARDIS and locked it.

Running to his TARDIS, the Doctor tried the key, only for it to not work. Staring down at the metal object, the Doctor stepped backwards before he nodded jerkily and got his sonic screwdriver out. He turned it on, only for nothing to happen.

And then the Professor's voice came out, as if he was standing right next to them. "Deadlocked."

Going back to the doors, the Doctor pounded on them. "Let me in! Let me in!" he pleaded.

"She's dead," Martha said suddenly, and nearby Jack yelled, "I've broken the lock! Give me a hand!"

But that didn't matter to the Doctor, nor did it matter to Kayla. Instead, the two stayed by the TARDIS. "I'm begging you! Everything's changed! It's only us! We're the only ones left!"

"Just let us in!" Kayla cried out.

There was only silence, and then a tell-tale golden lights filled the windows of the door and the man screamed. The Professor was regenerating. Kayla and the Doctor exchanged horrified looks, but neither of them moved even as Jack warned by the door that the Futurekind were there.

"Doctor and Kayla—ooh, new voice." The male voice, which was new, came over the speaker. "Hello," he said, dropping the voice lower. "hello," he repeated, higher this time. "hello," he finally finished, his voice back to his normal pitch. "Anyway, why don't we stop and have a nice little chat while I tell you all my plans and you can work out a way to stop me? I don't think!"

Martha's voice, hoarse, suddenly cried out, "Hold on! I know that voice!"

"I'm asking you really properly! Just stop! Just think!" the Doctor begged.

The man said only three words in response: "Use my name," he prompted.

The Doctor looked down and then briefly at Kayla. He had had a feeling who the man actually was, and he had hidden it from her because of the fear that it would bring. But now he had no choice. "Master. I'm sorry," he said even as Kayla made a gasping noise and clutched his arm in a vice grip.

"Tough!" the Master laughed in response.

As the controls started, the Doctor held out his screwdriver and whirled it on. Something evidently happened in the TARDIS, because the Master's voice came back over the speakers: "Oh, no you don't! End of the universe. Have fun. Bye bye!"

And as Jack and Martha fought to keep the door from letting the Futurekind come in, the Doctor and Kayla could only watch as the TARIDS was piloted away by the Master.

I loved the conversation with the Doctor and Kayla and then Kayla hearing the conversation with Jack and the Doctor. Honestly, I loved Yana, and I really wish he could have stuck around longer. Maybe kidnap everyone in the TARDIS?

I also love the Master. He's such a different person to the Doctor and it really put into perspective that all the Time Lords are so not like the Doctor. Plus, the guy that they choose to play him is an amazing actor.

But we're getting closer to the end, only four more chapters :(.