Chapter Summary: Jenny gets a visit from an unexpected visitor.

Notes at the end, mild spoilers for the next couple chapters, but some upcoming could upset some readers, so I want to give a head's up.

Beta: GoingToTheTardis

After the year that never was, Jack's life felt exceedingly uneventful, regardless of the fact that it was anything but.

Within a month, he and Jenny were running Torchwood. Technically, based on his seniority, he was the one in charge, but with her knack for languages and strategy, it was a pretty even split when it came down to the actual leading.

They finally moved to a bigger apartment, one that was closer to work and had room for Jenny's tinkering. She never reminded him more of the Doctor than when she was absorbed in her workshop.

The Doctor had held onto his spare hand after he and Jack parted ways, so their detection process had gotten a little less accurate. There were a couple of close calls, times the Doctor was on Earth, that they'd been unable to reach him in time or unable to confirm that it was safe for Jenny to introduce herself.

The incident with ATMOS had been particularly frustrating for Jenny. She knew they'd be able to help, but with the Doctor already handling it and with no way to make sure they weren't creating a paradox by showing up, Jack had made a rare veto of their getting involved.

He'd slept on the couch for a week after that, Jenny kicking him out of bed when she was done with him.

He didn't exactly argue when she wanted to use him like that, even when they were fighting.

Despite the changes, the events, the close calls, life felt stable. Jenny was angry with him sometimes, and sometimes the reverse was true, but she was still there. They were still together. He hadn't told her how he felt about her, but he was pretty sure she knew. Of all the ways the Doctor had changed Jack's life, he thought he was most grateful for his accidental daughter.

~O~O~O~

Jenny shook her hand, attempting to make it stop tingling after she'd pressed her fingers just a little too far into the device she was trying to fix. It was a gadget she'd taken home from Torchwood, and she hoped to have it working by the time Jack got back to the flat. He was out getting supplies for their anniversary dinner, though she was pretty sure the dinner was supposed to be a surprise.

She picked up the shiny, metal device once more, retrieving a screwdriver and carefully prying open the compartment that should hold whatever was meant to power it. It was essentially a universal remote, only it could control a lot more than just the television.

At the sound of a loud crash, she dropped it, and it landed harmlessly on the floor before Jenny realized the noise had come from outside of her workroom, probably from the living room.

She grabbed another item she'd brought home from Torchwood, this one a weapon rather than a remote. She moved to the door and turned the knob before opening it, easing the door inward and peering out.

In the living room of her flat stood a woman in a blue jacket, her hair bleach blond, and her back toward Jenny.

"Turn around slowly," said Jenny, aiming the laser at the stranger in her home.

Jenny fought both admiration and worry when the woman didn't tense in the slightest. Instead, she held up her hands at shoulder level, muscles still relaxed, looking as if she were reacting to a mate holding her up with a toy pistol.

"Just looking for a friend," she said as she finished turning toward Jenny, who had to fight back a gasp when she finally saw her face.

"Rose?" Jenny let her weapon lower slightly.

Rose blinked, her only sign of surprise. She smiled politely, leaving her hands where they were. "'M sorry, do I know you?"

"No," Jenny felt herself smiling, the wide grin pulling at her cheeks, and she let the weapon drop to her side. "I've heard all about you, though. He's gonna be so happy you're here!"

Jenny set the laser on a nearby table and reached for her cell phone, sending a text to Jack before she looked back up at Rose.

Get home ASAP. We have a visitor.

Rose Tyler, who hadn't seemed flustered up to this point, looked nervous.

"Sorry." Jenny walked over to Rose, stopping just an arm's length away. She watched Rose look her up and down, pausing on at least two of her hidden weapons. She was good. "I'm just excited because I didn't think I'd ever meet you. Parallel world and all that."

"You know about that?"

"Jack told me." Jenny knew that in her excitement she probably sounded nearer her chronological age than the age she typically acted.

"Jack? Captain Jack Harkness?" At Jenny's nod, relief swept across Rose's face. "He finally came back, then?"

"How do you mean?" asked Jenny.

"If it doesn't make sense, then maybe I shouldn't…" Rose waved absently. "I don't want to mess with timelines any more than I have to."

"I can sympathize with that, believe me." Jenny gestured to the sofa. "We can sit. Jack should be here pretty soon."

"Okay." Rose sat perched on the edge of the sofa, ready to move if she had to.

"Is there a trick, then," asked Jenny, making herself comfortable and trying to look non-threatening, "to figuring out where you are in someone's timeline? I mean, I've time traveled, of course, but I don't usually talk to the same people more than once."

"I try not to say too much until I'm sure."

"That makes sense. I mean," Jenny paused to study Rose, "you're older than you were in the last photo Jack showed me, so I know you've traveled with the Doctor."

"You know the Doctor?" Rose's eyes held cautious hope. "Do you travel with him?"

"No. I mean, yes, I know him, sort of, but I don't travel with him."

"I should have gone," Rose said in a low voice Jenny wasn't sure whether she was supposed to be able to hear, and her eyes focused on her hands. "I shouldn't have stayed when I saw the Doctor wasn't here, but..." She looked at Jenny properly, raising her voice to a normal level. "You remind me of him, some reason."

"That makes sense, I think." Jenny frowned. She didn't actually know whether Rose was traveling in time now or not. Should she tell Rose who she really was if there was a chance that Rose might see the Doctor again too soon? "I'm Jenny, by the way." That much, at least, should be safe.

"If you don't travel with the Doctor, how do you know him?"

"Well, I'm-"

Jenny was saved trying to decide her answer when Jack came in the door. It slammed behind him, and he came down the short hallway toward the living room.

"Jenny?" he called, stopping short when he entered the room.

Rose stood and faced him, and Jenny saw the invisible mask drop from her face, like she often saw with Jack when he finally relaxed after a hard day or a challenging situation. Jenny stood, too, and froze when she saw the expression on Jack's face.

He was guarded.

"Hello, Jack." Rose sounded almost shy, younger than she had moments earlier.

"You look like Rose, but I have it on good authority that that's impossible." Jack crossed his arms.

"And the Doctor's never been wrong about anything, has he? That's where you heard it, right?"

Jenny frowned. Jack was right to question who the woman was. Why hadn't she questioned it herself?

"It's her, Jack," Jenny said after a second, tapping her temple in explanation, feeling that pull of connection. "I know it is."

~O~O~O~

Jenny's instincts were usually right, and his own were screaming that this was Rose Tyler. Still, Jack was relieved when Rose interrupted.

"No, it's all right." She raised her eyebrows at Jack, a grin pulling at her lips. "When we first met, Jack, you tried to seduce me in mid-air."

"Believe me, Rose, that wasn't a real attempt." It sounded like her. It really did. For Rose to be here, though, and seemingly back from a dimension she'd been trapped in, it fell firmly in the too-good-to-be-true category.

"All right then." She smiled more fully, hint of tongue finally showing through. "What about when we first landed in Kyoto and you tried to bring three different men back to the TARDIS in the space of an hour, and the Doctor threatened to leave you behind, so you asked if he'd join you instead?"

Jack felt a weight lift, and he uncrossed his arms with a grin. He closed the gap between them and wrapped her in a hug, hoping he wasn't holding her too tight. "Oh, it's good to see you, Rosie."

"Good to see you, too, Jack." Her voice was muffled against his shoulder, and when Jack pulled back, he saw Jenny beaming at them. "How long have you been back on Earth? Where's the Doctor?"

"He didn't tell you?" Rose blinked back at him, and he gestured for her to sit. He sat next to her, and Jenny sat on the other side of him.

"Tell me what?"

"Satellite Five. He left me there."

"I know. You were helping rebuild, or something." She made a face. "Surprised me a bit, but I figured you'd let us know when you were ready to join us again."

Jack clenched his teeth. He didn't want to hide anything from Rose, but he didn't want to sound like he was dissing the Doctor, either.

Jenny placed a hand on his back, her thumb moving back and forth along his coat. "I think the Doctor didn't want to make you upset," she said. "Jack is different, since then, and even the TARDIS didn't want him around, not then."

Rose frowned. She opened her mouth to speak, but a gentle beep sounded on her watch. "I don't have much time left. Jack, I need to find the Doctor. It's important."

"I've been trying to find him again, myself," he responded.

"I'm close, I know I am." Rose was speaking quickly. "But I need something of his, something from this timeline that might have a bit of his DNA."

Jenny's thumb stilled. "I can help with that." She jumped up and ran to her workshop, and Rose stood, looking at her watch again.

"How'd you find us, anyway?" Jack asked.

"I thought I'd set the scanner to lock on to Time Lord DNA. Tracing the TARDIS wasn't getting me close enough, and since he's the only one…"

"It was an accident, then, landing here?" Jack studied her. She didn't seem to be carrying any weapons, but she held herself differently than she had when he'd last seen her. She was no longer a carefree teenager; she'd had some martial training.

"I was sure it was the right place." She looked at him. "Been wrong before, though."

Jenny came back into the room holding a small vial of blood. "Here. Thought this might be the most effective. It should be close enough to help." She handed it to Rose, then stood by Jack. He slipped an arm around her waist, holding her close, using her strength to help him let Rose leave, to let Rose find the Doctor instead of asking whether she knew anything about his immortality.

"What's going on?" Rose didn't ask what was in the vial, at least, that much being obvious. She looked again at her watch.

"Rose," Jack said after a long moment, "meet Jenny, the Doctor's daughter."

"I was generated," Jenny added quickly, "so my DNA doesn't have anyone else's in it. It's just his, only rearranged to make me, instead."

"He thought she was dead," Jack said. "We haven't been able to find him at the right point in his timeline to correct him without causing a paradox."

Rose nodded. "If I find him first," she said, her hand closing protectively around the vial, "I'll let him know you're looking for him, if it's safe." She looked at her watch again. "They'll be pulling me back any second."

"Good luck!" Jenny's smile was reflected in her voice, and Rose nodded.

"And Rosie?" Jack said before she could leave. "You might want to carry a gun if you're going to be popping in to places at random."

"I'll keep that in mind," she said, her lips twitching before she vanished.

Okay, so the next couple chapters are rewrites (though light on the repetition) of The Stolen Earth and Journey's End, with Jenny's presence. It'll be significantly canon divergent from then on, including removal of (not death of) one of the characters. If you need more specifics, please let me know.

Reviews!

Guest: Thank you!

jackjenfan: Your continued excitement is quite appreciated :) I'm not opposed to a sequel if it needs it, but I do have a lot of projects that need to come before that.

Yuuki no Yuki: Haha, yes. Even though I knew I'd probably soon be diverging from canon pretty significantly, I like keeping the episodes unchanged as much as possible. Tired songs are fun ;)

AliciaRoseFantasy: Thank you very much! I definitely liked that chapter :)