Hope you enjoy this chapter! :)

Lots of Jack, Doctor, Violet.

Instead of showing him Rose's daughter, like the Doctor expected, Jack led him into a large room and then walked over to a computer and typed in a few keys. A moment later something he didn't expect appeared on the screen. He knew what he was looking at, but he wasn't sure how Jack managed to get it or why he was showing it to the Doctor.

"What are you showing me?"

"That's her DNA."

Her? Her who? He had a feeling he knew, but he couldn't believe it.

"Violet, Rosie's daughter. That's her DNA."

For a moment he couldn't breathe. It was as if all the oxygen had been sucked out of the room. It…it can't be.

"Jack…this just isn't possible," the Doctor said, barely above a whisper.

"It must be because there it is," Jack replied.

He looked at the man, half expecting him to grin and laugh, but Jack wasn't the sort to make jokes about a thing like that. Still, he couldn't believe it.

"It has to be wrong."

"It's not Doc. I ran the tests twice, but I knew even before that."

"What do you mean? How could you know?"

"The first thing I did when I got her back here was listen to her heart. She doesn't have one heart. She has two."

"No…but…it…I mean."

The Doctor realized his hands were shaking. He stared at them a moment without seeing them as he tried to calm his hearts that both started beating rapidly. Rose's daughter was…well, would be a Time Lady. How could that even happen?

Jack was still talking, but he wasn't paying attention. His mind was too busy trying to work out what should be impossible. Rose was human. The meta-crisis had some Time Lord DNA, but he was physically human. There was no possible way they could have a full Time Lord daughter, well, Time Lady, but still.

No, he needed to find out for himself. Run some tests with the TARDIS. She was far more reliable than some Torchwood tests.

"…and that's when I ran her DNA against yours-" Jack said, snapping the Doctor's attention back to the impossible man.

"What? My DNA? Where the hell did you get my DNA?"

"Remember your hand?"

"You don't have my hand."

His hand was now living in the parallel world with Rose.

"No, but I used it to track you down before and I still had the pattern programmed into my Vortex Manipulator. Not that it's there anymore, had to make some adjustments before I jumped through the Void, but I downloaded it to our database-"

"Jack!" the Doctor snapped, trying to get the man's attention. He was rambling again. If I ramble half as much as he does no wonder Amy got so frustrated with me.

"Right…Anyway, I wanted to run a…well, a paternity test…just, you know to…well, to check. I probably wouldn't have thought of it myself, but well, Tosh pointed out how impossible it would be for the meta-crisis to be Violet's father seeing as he's only part Time Lord and with Rose being human-"

"Jack…would you just get to the point," the Doctor said, as calmly as he could, which wasn't actually very calm at all.

"Yes, sorry. Anyway I didn't have Rosie's DNA on file. So, I went back to the day after the Canary Wharf incident so I could find something at her flat…a hairbrush or a toothbrush or something," Jack glanced at the Doctor who was having a hard time figuring out what the man was getting at. So, he'd gone back and collected a DNA sample, what was so important about that? Obviously he needed it to run the test, but why was he explaining all that to the Doctor? "I ran it and, well…maybe it's just best if I show you."

Jack punched some keys and a strand of DNA appeared. The Doctor's DNA. He recognized it immediately.

"That's your DNA," Jack continued. "And this," he punched a couple more keys and another strand appeared next to it. "is Violet's DNA." Yes, the Doctor recognized that one too. It's the one that had been on the screen a few minutes ago. "And this…" he punched keys again, "…is Rosie's DNA."

The Doctor was pretty sure at least one of his hearts stopped. He pulled his glasses out, the round ones that used to belong to Amy, and put them on. Then he stepped closer to the monitor and examined Rose's DNA. Impossible! It…that…that can't be her DNA.

"Jack…that…that's just not possible," he whispered, staring at the golden string that wrapped around the human part of Rose's DNA.

"Do you know what it is? None of us have been able to identify it."

"It's…time energy."

"Time energy?"

"It's what's inside the Time Vortex."

"How is it attached to her DNA…is it…I mean, is that bad?"

"I…" the Doctor tried to work out how it could possibly be there…part of Rose's DNA. "The only sentient being that could possibly have time energy part of their DNA is…" he trailed off not even sure he wanted to voice the answer.

"Is what?" Jack asked in a worried voice. When the Doctor didn't answer he persisted, "What Doc? Tell me!"

"Is a TARDIS."

"WHAT?"

"She's not a TARDIS, Jack," the Doctor said, taking off his glasses. "Obviously. I mean that would be…"

"As impossible as Rosie having a Time Lord daughter?" Jack replied.

"Well, yes, but I mean…no…more impossible."

"So, that extra bit of DNA has to do with the Time Vortex?"

"I suppose you could put it that way."

"But what are those extra strands on yours?"

"That's from years of exposure to the Untempered Schism. It's what makes me a Time Lord."

"The Untempered Schism?"

"It's an opening in the Time Vortex. A gap in the fabric of reality."

"So, is that time energy too?"

"Well…yes…in a way, I mean, I suppose you could put it that way, but it's not the same, not really."

Jack eyed the Time Lord. What? Were there different kinds of time energy? He'd mentioned the Time Vortex again. There had to be something to that.

"So, let me get this straight. Rosie has time energy attached to her DNA, right?"

"More like interwoven with her DNA, but, yes, attached will work."

"And you have time energy interwoven with your DNA."

"Yes, but mine's different as I pointed out-"

He moved to point out the differences, but Jack stopped him with a wave of his hand that indicated it wasn't important.

"And that time energy has something to do with exposure to the Time Vortex?"

"Yes, but as I said, mine's from years and years of exposure to the very heart of the Time Vortex. Rose traveled with me for a couple years, but she was protected inside the TARDIS. I mean, there was the whole thing with River, but that was an entirely different set of circumstances-"

"River?" Jack interrupted.

"She's…" The Doctor looked at Jack and decided not to get into the whole story about how and why he got married. He knew how Jack felt about Rose and he didn't feel like getting into a fight. There were other things to worry about. "She was the daughter of some friends of mine. They traveled with me and they were with me on their wedding night." Jack raised his eyebrows. "Suffice it to say we were in the Time Vortex when they…did that thing that goes on behind closed doors."

"So their baby was born with time energy?"

"Part Time Lord actually, well Time Lady, but there were other matters to take into account," he said, thinking about everything Madam Kovarian had done to Amy while she was pregnant and then to River after she was born.

"So it is possible for the Time Vortex to change someone?"

"Well, yes, I suppose, under certain circumstances, but not like this. The time energy in Rose…it's…well, as I said it looks more like something I'd expect to see in TARDIS DNA, if that were possible."

"So, how much exposure are we talking about? For something like this to happen?"

"I…I'm not sure. I mean-"

"As much exposure as Rosie got when she had the Time Vortex running through her head?"

"What?"

"She wasn't just standing next to the Time Vortex. She had it inside of her. You said she turned all those Dalek's to dust and brought me back, made me immortal, with nothing more than a thought. Could having that inside of her have changed her? Could it have done that?" Jack indicated Rose's DNA.

"No…I mean…no, it…it couldn't…" He froze. Could it? Could it have changed her? He'd taken it out of her, but Jack was right. It was running through her, ever since she looked into the heart of the TARDIS.

"You had it inside of you for how long after you took it out of her?"

"I don't know, a couple seconds."

"And it killed you. Made you regenerate. She had it in her for a lot longer. Enough time for her to come back to you and destroy all the Daleks and bring me back to life and she survived. Don't you find that strange?"

"Well…I…" Actually, he really hadn't thought about it. He'd been too busy regenerating after he saved her, but now that he thought back it did seem strange. No, not strange, impossible. She shouldn't have survived, but she had because… He slapped his forehead, causing Jack to jump.

"I'm so slow! The TARDIS must have protected her. Rose wanted to save me and the only way to do that was for the TARDIS to give her that power, but Rose would've burned up as a human so the TARDIS must have made her stronger to enable her to have the Time Vortex running through her." But…he examined her DNA again. No! But there it was. He could see it now. He laughed as he realized what that meant. "Oh, you beauty."

"What? What is it?"

"Don't you see, Jack? Don't you understand what she did?" Jack stared at him with a confused look on his face. "Rose is part TARDIS. She's human and a TARDIS." He laughed again.

"What the hell do you mean she's human and a TARDIS?"

"She's connected to my TARDIS. She'll…" Then he realized how very bad that was. Not bad that Rose would now live as long as the TARDIS, which meant they could be together because it didn't matter how jeopardy friendly she was since she was pretty much indestructible, well, as long as the TARDIS was alive, but how very bad it was for Rose being held by that government. Why they would even want her and what she might be being subjected to. "We have to save her, Jack."

"That's what I said…"

But the Doctor wasn't listening. He turned around and began walking toward the hall.

"Doc!" Jack called. "Wait!"

The Doctor turned around impatiently. He didn't have time for this. He needed to go, needed to find Rose.

"Jack, I have to go! Whatever you have to tell me can wait."

"No, Doc, it can't," he typed a few keys. "This really can't wait."

The Doctor folded his arms, impatiently and stepped back toward the monitor. As he watched his DNA and Rose's DNA merged onto Violet's DNA and he froze. What? No! What?

"This is what I was trying to tell you," Jack said, smiling at the stunned look on the Doctor's face. "Violet isn't just Rosie's daughter. She's your daughter too."

He reached out and touched the monitor. Violet was…his eyes misted over…his daughter. But that…that just wasn't…

"How?" he asked in a thick whisper.

"I thought after nine hundred years you'd know the answer to that question," Jack teased.

The Doc eyed him.

"I know how it happens, Jack, and it's more like twelve hundred now, give or take a hundred years. I mean how could she be mine?"

"Twelve hundred-"

"It's just not possible," the Doc said, interrupting him, making Jack decide to put the question off until later.

"You can't deny the evidence, Doc. I'm still not sure how you managed it what with the Crucible, Davros, and the reality bomb, but I must say I'm impressed. You obviously work well under pressure."

The Doc jumped as if Jack slapped him.

"What? What is it?" Jack asked.

Jack could tell he was hiding something. He had a far off look in his eyes. One that seemed to hurt, as if the memory was painful.

"I…just…it's… It's nothing."

"What are you not telling me?"

"It's…" he sighed. "I ran into her when she was trying to find me."

"What?"

"Remember how Rose used the Dimension Cannon to cross the Void?"

"Yeah."

"Well, it took her more than one jump to get in the right place. I ran into her three times before she found me."

What? That statement didn't even make any sense. If he ran into her then why would she leave and…three times? What the hell was he talking about?

"Sorry…what? If you ran into her then why'd you act like you hadn't seen her?"

"Because I hadn't. Or, I should say, my tenth regeneration hadn't. I ran into her…me…how I am now."

Oh! He was saying he ran into her later. Not in his tenth form, but in this one.

"You ran into her after you regenerated?"

"Yes."

"And you…what? Thought you'd get a little…" Jack raised his eyebrows and smiled.

"Shut up Jack! No of course I didn't…well, we did, but not like that. The first time I saw her was a few hours after I regenerated, then the second time was still the same day, technically the same day, but the third time was much later. I thought I was going to my death," Jack's smile slipped, all joking gone. "That's when…well…when it could've happened. Only…I still don't understand how our…" he swallowed as the realization that he had a daughter hit him again, "…our daughter is a full Time Lord."

"Were you going through the Time Vortex when it happened?"

"No, Jack, we were not going through the Time Vortex when it happened."

"Are you sure? One of you could've hit a lever and then-"

"First of all, Jack, we weren't anywhere near the console and second…I am NOT having this conversation with you."

"There has to be an explanation." Jack said, trying to stave off the Doc's glare. "If there's only two ways this could happen, which would be two Time Lords having some…" He raised his eyebrows. "…fun or two humans having fun while traveling through the Time Vortex then how is this possible." He indicated the test results.

"I don't know," the Doc said as he started pacing. Then he stopped and slapped his forehead again, making Jack jump a second time. "Oh, I'm so thick! The time energy that's why Violet is a full Time Lord."

"What?"

"Don't you see?"

"No, not really-"

A piercing cry brought them both out of their conversation. Jack had forgotten about her while he talked to the Doc. He checked his watch. No, she shouldn't be getting up yet. He ran for his office worried that something might've happened. He heard the Doc following.

Jack ran into the room and up to her crib. She appeared to be fine, but she was crying. He picked her up.

"It's alright," he cooed, trying to sooth her by gently rocking her.

He heard the Doc enter the room and a moment later the Time Lord was standing next to him.

"It's going to be alright, Violet. I'm going to bring her here," the Doc said.

Jack gave him a quizzical look. Violet calmed down and instead of crying started making little grunting noises that babies often make.

"She's worried about Rose. Had a bad dream," the Doc said, after noticing Jack's look.

Had a bad dream? How does he even know that? He must be guessing, he couldn't actually know.

The Doc brushed his finger under his chin.

"No, that's my chin. Is there something wrong with my chin?" Jack realized the last question was directed at him, but he was too busy trying to figure out if the Doc had lost his mind.

"What are you doing?"

"Talking to my daughter, Jack." The Time Lord looked at Violet then straightened his bowtie. "It's a bowtie. Bowties are cool…are so…your mum said so."

"You can't really understand her, can you?"

"Of course I can. I speak baby."

Jack laughed, thinking the Doc had to be joking.

"You're kidding, right? No one speaks baby."

"I do. I speak everything. Now, if you don't mind, I'd like to hold my daughter."

Jack handed Violet over, still wondering if the Doc had finally lost his mind.

The Doctor held Violet carefully. The tears that he'd held back stung his eyes. My daughter. He never thought it was possible. Not only for there to be another Time Lord, but for that Time Lord, or Time Lady, he amended, to be his child.

She was still just a baby, but he could feel her, at the back of his mind, not as strong as she would be later, but even that little bit of her took away the silence that had filled him for years after the war and then again after the Master stepped into the time lock.

"Doc?" Jack asked. "Are you okay?"

He knew there were tears, but for once they weren't the tears of loss. They were happy tears. Crying because you're happy. How human. He laughed.

"Yes, Jack, for once I really am." Violet was wondering who he was. He knew she could sense their connection though she was too young to understand it. "I'm your dad and you're my daughter." Another tear and now she was worried because he was crying. "No, luv, I'm not sad. I'm happy. Yes, people cry when they're happy." Now she wanted to know where her mum was and when he was going to bring her back. "I'm going to get her soon. She'll be back before you know it."

"I'm coming with you," Jack said, bringing the Doctor out of his conversation with his daughter.

"I can do it myself, Jack, besides someone is going to have to look after Violet."

He didn't want to leave her, especially now. She was so young and anything could happen, but he had to save Rose and since he wasn't really sure what he'd be walking into it would be far too dangerous to bring Violet with him. He wouldn't chance anything happening to her. He knew Jack would keep her safe.

"I'll ring Gwen. I'm sure she'll keep an eye on Rosie's…your daughter and I trust her."

"Jack," the Doctor began.

"Stop right there, Doc. I had to leave her there. Do you even understand how hard that was? I couldn't help her and I'll be damned if I'm going to stay here and babysit while you go after her alone!"

He eyed the impossible man who was just as stubborn and Rose. Once Jack made up his mind the Doctor knew there was no changing it. He also knew he could use the help, but he still wasn't sure.

Violet cried, upset because her dad made her bigger milk thing yell.

"His name's Jack, luv, not bigger milk thing."

"What?" Jack asked, confused.

"Fine. You can come, but only if Gwen agrees to watch her."

Jack gave him a sideways glance, but then seemed to decide not to question him and crossed to his desk to call Gwen.

Standard Disclaimer.

Thank you to all my readers! You guys are brilliant! If anyone has time reviews are always welcome. :)