Terry stretched delicately as she slipped out of bed, shaking off the residual drowsiness of a good night's sleep. It had been a long time since she had slept as well as she had, snuggled in the Doctor's arms. For once, she had woken up before him, and she would have been content to watch him sleep for the rest of eternity if her stomach hadn't growled and forced her up. The Doctor grumbled when Terry gently slid out of his embrace, making her smile down at the way his forehead creased. Pausing only to press a gentle kiss on his forehead, melting the slight frown there, Terry headed for the bathroom for a quick wash before she went in search of food.

However, Terry had only just pulled on her clothes after her refreshing shower, when she was surrounded by familiar blue light. Reaching out, Terry managed to grab her yellow scarf and black oxfords just before she disappeared, leaving the Eleventh Doctor sleeping peacefully in his bed.

As it was, she was still barefoot with her shoes in one hand and her scarf in the other as she materialized. The good news though, was that Terry had landed in the Tardis once more and she smiled when she saw she was not alone.

"Terry!"

Ten beamed and waved to her as soon as she appeared, bounding to his feet and striding over to her. Terry waved back, glad she'd had the foresight of removing her wedding ring and putting it on a necklace before her shower. That would have been awkward to explain to this Doctor.

"Hello, Sweetie."

Terry smiled warmly back at the Doctor, before turning her attention to Rose. The blonde moved out from behind the Doctor, although Terry noted the way Rose seemed to pause before the blonde smiled back at her.

Mickey, however, was flat out staring from his spot by the console, so Terry surmised, "Mickey, I'm guessing you haven't met this me yet."

"Er…"

Mickey hesitated and Rose admitted, "None of us have."

Terry's eyes widened and she turned to the Doctor in surprise.

"Really?" She asked, and he nodded.

"Only knew it was you from the way you appeared." He explained, and Terry stilled.

If the Doctor and Rose had never met this regeneration, it also meant Terry would never see Nine again – and she hadn't even known it at the time that it would be the last time she'd see him. And it had been such a long time ago too… Her hearts clenched painfully.

And Terry realized as she hugged Rose that this was just the beginning – she might one day just stop seeing Rose, or Mickey, or any of the others. And she might never be aware of it. Terry wondered vaguely what would happen in her future – she clearly didn't get to be involved in all of the Doctor's episodic adventures (since she hadn't jumped into quite a few of Nine's). What would happen when she ran out of jumping time? Or was it that she died permanently in her future? That was a depressing thought and not something that needed to be addressed yet; Terry filed it away as she returned her attention to her friends.

"So," Terry began as she looked around, "this your first time meeting third me?"

"Yep."

The Doctor popped the 'p' and Terry smiled at him fondly while Rose chuckled.

"It's so weird, because we've just come from when you first met us." The blonde admitted.

Terry stared blankly back at the companion, not understanding right away, before her eyes widened and she laughed.

"Oh, dear." Terry chuckled as the others laughed with her. "That feels like ages ago… Well, it was ages ago, but it feels even longer."

"How old are you now?" Rose asked curiously and Terry gave a small laugh.

"Forty-five."

"Forty-five?" Mickey repeated in disbelief as he stared at the brunette who didn't look older than twenty-five at most.

She laughed.

"Why are you surprised? You've got 903 year old him," she nodded at the Doctor, who grinned back at her. "And you're surprised that I'm forty-five?"

Mickey continued to gape at her, making Rose chuckle as she patted his arm in pretend comfort, when the Doctor suddenly recalled something.

"Oh, that reminds me." He started digging around in his pockets. "Reinette gave me a letter and there was a part dedicated to you-"

"Oh, it's fine." Terry told him quickly as she waved his efforts to look for the letter away. "You showed it to me already. Or, you will."

"Really?" He asked in surprise, and Terry nodded.

"Wait for when I do something incredibly stupid, and that'll be your cue."

The Doctor gave her a skeptical look.

"That tends to happen a lot." He pointed out dryly. Terry paused, realizing she had no counter argument for that.

"Huh, I guess you're right. Let me rephrase: wait until I do something incredibly idiotic and look really surprised that I did it."

"Oh…"

The Doctor trailed off, his brows furrowing slightly in thought.

"You know… that has never happened before." He realized.

"It's coming soon for you." Terry advised.

"Do I like it?" The Doctor asked suddenly. "Because usually you being stupid ends with…"

He trailed off pointedly, probably thinking of every idiotic stunt Terry had pulled so far; and those were only the ones this Doctor was aware of. Terry grimaced mentally as she thought about the two times she had almost died right in front of him. Deciding that it was better not to think about that lest she accidentally say something aloud, Terry instead moved onto the Doctor's actual question and pondered it.

He definitely hadn't hated that she'd kissed him in 'Idiot's Lantern', especially compared to if she'd gone and done something like… lose her face. Terry winced - best not to mention that either. But, had he liked the kiss? He certainly had looked surprised, but Terry had been too stunned at the time by what she'd done to really take in his reaction. Then again, Eleven had admitted that he fell in love with her after 'Christmas Invasion', so he couldn't have disliked it. Right?

"Terry?" The Doctor asked worriedly, not liking how long she was taking to answer the question.

"Yeah… I think you liked it." Terry finally replied slowly.

"You 'think'?" The Doctor repeated and Terry shrugged.

"Spoilers."

"Interesting fashion choice by the way." Rose interjected as she looked at Terry's yellow scarf, red sweater dress and black stockings, and the black Oxfords Terry was still holding in her hands.

"Do I get used to this kind of classy look on you?"

"Hm, I think so." Terry answered vaguely, not wanting to tell Rose she hadn't met her yet since regenerating. There was little need to make Rose worry she wasn't in the Doctor's future even if the blonde knew on some level that it wouldn't be forever; at least, not his and Terry's forever.

Putting on her shoes and throwing on her scarf, Terry changed the subject by suddenly turning back to Mickey.

"By the way, Mickey – why are you pressing that button?"

The Doctor and Rose looked as surprised by Terry's question as Mickey. The pair then turned toward the other companion as well, the Doctor guiltily and Rose questioningly as Mickey answered.

"The Doctor told me to."

"When was this?" Terry asked as she eyed the button skeptically. It wasn't important enough for Mickey to be continually pressing it as he had been since Terry arrived.

"About… half an hour ago." Mickey answered after some thought.

Realizing what must have happened, Terry sighed.

"You can let it go." She advised the companion before turning to the Doctor sternly. He shifted guiltily at her look while Rose bit her lip to stop from laughing.

"I think you have something to say to Mickey, Doctor."

"Er..."

The Doctor trailed off awkwardly and Mickey frowned.

"Wait, what do you mean? How long's it been since I could've let go?" Mickey demanded. The Doctor shrugged sheepishly.

"Ten minutes? Twenty? Twenty nine?" The Doctor's voice cracked a little at the end.

Rose's shoulders were shaking with silent laughter while Mickey stared at the Doctor indignantly.

"You just forgot me!"

"No, no, no." The Doctor denied, looking to Terry for help that the Time Lady was unwilling to give. "I was just, I was, I was calibrating. I was just... No, I know exactly what I'm doing."

Of course, it was at that moment that the time rotor exploded.

"Rose!"

Terry tackled the blonde companion, hauling her down and bracing both of them against the console as the Tardis began to spin like crazy. The Doctor yelled as he latched onto the console right beside the two women while across the console Mickey yelped as he went tumbling all around along with the Tardis's wild movements.

"What's happened?" Rose gasped while the Doctor worked furiously at the console but to no avail.

"The time vortex is gone." The Doctor breathed incredulously, fiddling with buttons and levers but nothing was making a difference. "That's impossible. It's just gone."

"We're going to crash!" Terry yelled in warning. "Mickey!"

The poor young man barely managed to latch onto the console, holding onto it tightly just before the Doctor yelled, "Brace yourselves!"

The Doctor grabbed Terry's shoulders and he threw himself over her protectively as they all adopted the brace position right before the Tardis landed with a tremendous crash. The minorly good news was that the Tardis had at least landed upright; unfortunately, Terry's whole body still ached all over from where she had been thrown to the floor as a result of the Tardis's sudden stop.

The Doctor had barely cushioned her with his body and Terry groaned aloud, "You know, Donna was onto something - you are skinny."

"Thanks." The Doctor griped as he slowly sat up, wincing slightly. "And who's Donna?"

"Oh… nevermind, spoilers." Terry mumbled as she sat up with the Doctor and looked around the darkened Tardis.

Something was hanging from the ceiling right above her head like a giant spider, making Terry flinch at first before she realized it was the emergency gas masks. The Doctor held Terry against his chest once they were sitting up, apparently unconsciously, as he called out to the others.

"Everyone all right? Rose? Mickey?"

"I'm fine, I'm okay, sorry, yeah." Mickey gasped.

Rose was also sitting up, unscathed, while the Doctor helped Terry to her feet alongside him as they all stared at the dead Tardis.

"She's dead." The Doctor murmured in shock. "The Tardis is dead."

"You can fix it?" Rose checked worriedly but the Doctor shook his head numbly.

"There's nothing to fix. She's perished. The last Tardis in the universe. Extinct."

"I'm hungry." Terry realized as her stomach gave a complaining growl after still not being fed. The Doctor shot her a look. and Terry had the grace to look sheepish. "Sorry."

"We can get help, yeah?" Rose interrupted, her voice tight and laced with fear.

"Where from?" The Doctor countered and Rose gestured toward the doors.

"Well, we've landed. We've got to be somewhere." Rose pointed out desperately.

Mickey moved toward the doors cautiously while the Doctor explained to Rose numbly, "We fell out of the vortex, through the void, into nothingness. We're in some sort of no place."

Terry remained watching Mickey, tuning out the Doctor's dramatics as she waited for the companion to look outside. The Doctor didn't notice, too absorbed in his own thoughts that he was saying aloud.

"The silent realm."

Mickey poked his head out the door.

"The lost dimension."

"Otherwise known as London." Mickey called back with a grin.

Terry was surprised to feel… nothing. Well, not nothing but something she couldn't explain. She wasn't surprised like the Doctor and Rose, nor was she pleased like Mickey. This adventure… it was pain and confusion, not for the Doctor but for Rose and Mickey. And knowing that there was nothing she could do to save them from that… it was a funny feeling.

"Angel?"

Terry shook herself from her thoughts and looked to the Doctor at his call. He was watching her with some concern, not following Mickey as the companion walked out with Rose not far behind him.

"Are you okay?" The Doctor asked and Terry nodded quickly.

"Yeah. Yeah, I'm fine. Just the shock." She murmured. He didn't believe her but Terry took the Doctor's hand and pulled him toward the doors.

"Come on; we can't let them wander off."

Together, the two Time Lords stepped out of the Tardis to find they were on the street across the Thames from the Palace of Westminster. Mickey had just pulled a newspaper out of the trash and he and Rose examined the date as the Time Lords slowly wandered over.

"First of February this year, not exactly far flung, is it?" Mickey chortled, still highly amused that the Doctor had been so wrong about where they were.

The Doctor and Terry meanwhile were staring up at the sky and the Doctor checked, "So this is London?"

"Yep." Mickey nodded.

"Your city."

"That's the one."

"Just as we left it?"

"Bang on."

"Including the Zeppelins?" Terry asked dryly.

Mickey and Rose looked up from the newspaper and to Terry in confusion. They then followed the Time Lords' line of sight and their jaws dropped as they saw the enormous airships floating in the sky overhead.

"What the hell?" Mickey gasped while Rose sighed, "That's beautiful."

Mickey shook himself and he glanced back at the Time Lords as he suggested, "Okay, so it's London with a big international Zeppelin festival."

"This is not your world." The Doctor answered grimly as he started to walk down the road, squinting into the distance where they could see more Zeppelins floating in the sky. The Doctor's lips were pulled down into a deep frown as he tasted the very air while Terry looked back at Mickey as the young man began to protest.

"How do you know that?"

"Have you really heard of an international Zeppelin festival, Mickey?" Terry asked. "Besides, those Zeppelins are made of a material not yet built in your time in your world, they're even floating above the houses of parliament which would never be allowed in your world, the streets are far too quiet, and even the air tastes different. Conclusion?"

The Time Lady shook her head and answered her own question.

"This is not your world."

"But if the date's the same…"

Mickey trailed off as the realization hit him.

"It's parallel, right? Am I right? Like a parallel Earth where they've got Zeppelins. Am I right? I'm right, aren't I?"

"Must be." The Doctor agreed without the same enthusiasm as his latest companion.

Rose meanwhile stopped in her tracks as she saw something off to the side of the road while the Doctor and Mickey continued to look out toward Westminster.

Terry had also been staring out into the distance grimly but she turned as Rose began faintly, "So, a parallel world where-"

Terry noticed what Rose was so transfixed by and her blue eyes filled with pity while Mickey scoffed, unaware of what was wrong.

"Oh, come on. You've seen it on films. Like an alternative to our world where everything's the same but a little bit different, like, I don't know, traffic lights are blue, Tony Blair never got elected."

"And he's still alive."

At Rose's tone, more than her words, the two males turned to look at her only to find Rose staring at an advertisement for Vitex Lite… starring Pete Tyler.

The Doctor sucked in a breath while Rose said shakily, "A parallel world and my dad's still alive."

"Don't look at it, Rose." The Doctor warned but Rose was already ignoring him as she started quickly toward the ad.

The Doctor followed after the blonde, dragging a silent Terry along with him as he insisted, "Don't even think about it. This is not your world."

"But he's my dad," Rose protested absently, her whole attention fixed on the advertisement. "And-"

She touched the ad, triggering it to play.

"Trust me on this." Pete smiled and winked, holding up a thumbs up.

Rose stepped back a little and she mumbled, "Well, that's weird. But he's real."

"And he's not yours, Rose." Terry said quietly. Rose ignored her too as the ad continued to play on repeat.

"Trust me on this."

"He's a success." Rose laughed a little. "He was always planning these daft little schemes. Health food, drinks and stuff. Everyone said they were useless. But he did it."

"Rose, if you've ever trusted me, then listen to me now." The Doctor cut in, forcing Rose to turn around so she was looking at him and not the ad. She tried to turn back to the ad.

"Stop looking at it." The Doctor scolded sharply, forcing Rose to look at him again. "Your father's dead. He died when you were six months old."

Rose was still smiling giddily so the Doctor sharpened his tone further as he gave her the brutal truth.

"That is not your Pete. That is a Pete. For all we know, he's got his own Jackie, his own Rose. His own daughter who is someone else, but not you."

Rose's smile was gone by then, and she lowered her gaze as the Doctor warned, "You can't see him. Not ever."

He let the blonde go and took Terry's hand before hurrying back to the Tardis. Terry looked back at Rose pityingly as Mickey placed a hand on his friend's shoulder in sympathy while Rose turned back to stare at Pete's ad as it continued to repeat.

"Trust me on this. Trust me on this."

Terry munched on a bag of mixed nuts she'd managed to dig up from the Tardis kitchen, which had been a near-impossible mission to find. With the Tardis dead, all the rooms had warped and expanded to full size in no particular order. She'd finally found the kitchen right next to the pool - quite literally. She was still drying off her hair from the swim to get to the kitchen as she returned to the console room with the bag in hand just in time to hear Mickey snapping at the Doctor.

"Oh, so it's just Rose, then? Nothing out there to tempt me?"

"Well, I don't know, I can't worry about everything." The Doctor sniped back crossly before he turned back to the console. "If I could just get this thing to-"

The Doctor kicked the console, hard. Terry shook her head at the display. There was a beat of silence.

"Did that help?" Mickey asked at last.

"Yes." The Doctor answered petulantly as he moved around the console.

"Did that hurt?"

"Yes." The Doctor answered immediately, sitting in the captain's chair and grabbing his poor foot. "Ow."

"You are such a child sometimes." Terry commented as she walked out of the darkness, unintentionally scaring Mickey, and walked over to the Doctor.

The Doctor just continued to grumble while Terry asked Mickey politely, "Mickey, do you mind going out to look after Rose? The Doctor's right when he says there are too many temptations out there in this world."

Mickey scoffed.

"You're the same as them. It's always just Rose. You don't think I have a life?"

"No, I do." Terry answered seriously, fixing troubled blue eyes on the young man.

"Which is why I'm going to ask you now to not give into those temptations, Mickey. This world has things that you dream of, but what you have to remember is that they're not yours. The people here are real, make no mistake, but they have lived different lives, they're different people. And that's why you and Rose have to keep in mind that no matter how identical the people here look to the people you knew back home, they may as well be identical twins. Same face but completely different inside."

The Doctor glanced at Terry but again Mickey just scoffed.

"Right." He looked Terry in the eye. "And I suppose that's why you just blindly follow the Doctor, even though you came from a different world? Even though he's not the same person you knew back from your home?"

Terry hesitated; Mickey nodded.

"Yeah, didn't think so."

With that, Mickey strode back out of the Tardis. As soon as the door slammed behind him, the Doctor walked over to Terry and wrapped her in his arms.

"He didn't mean it." The Doctor murmured and Terry shook her head.

"I know he didn't, he's just hurting." She sighed. "Besides which, it's not actually a good analogy."

The Doctor glanced down at Terry curiously but she just shook her head again.

"Spoilers." She half-lied. Terry herself had no clue exactly yet either. But somehow, she knew that in her case, it wasn't as simple as falling into a parallel world (as if that was simple). There was something in Eleven's behaviour sometimes, in words he let slip by mistake. The older Doctor knew, she was certain of it, and she had a feeling she would find out too. But for now, she shook it off - there would be plenty of time to ponder that later.

"Anyway, we have to find a way out of here."

The Doctor nodded thoughtfully but he didn't let go of Terry. She looked up at him curiously and the Doctor cocked his head at her.

"What did you mean, 'he's hurting'?"

Terry's gaze filled with understanding and she glanced toward the Tardis doors through which Mickey had disappeared.

"Mickey's mother couldn't cope. His father ended up running away as well and Mickey was raised by his grandmother. Rose knew her as well. But she died about five years ago from Rose's perspective; she tripped and fell down the stairs."

"Oh."

The Doctor went silent for a moment.

"How did I not know that?"

"You would never have asked him." Terry shrugged and laid her head against the Doctor's hearts.

"Just like Mickey never asked you why you were travelling all alone before you met Rose. Or how you got the Tardis in the first place. We're our own worst enemies in that way."

The Doctor's steady heartbeats soothed Terry and she closed her eyes briefly, letting him give her strength (even if he wasn't aware of the fact) to deal with what the night was going to bring. The Doctor didn't move, somehow sensing she needed the moment. But it was as they were standing in each other's embrace that he noticed something on the ground.

"What's that? Is that a reflection?" The Doctor murmured and Terry pulled her head back to look at what the Doctor was looking at. She smiled a little as she saw the tiny green light shining dimly from beneath the Tardis console. Like she knew it would.

"It's a light!" The Doctor crowed in triumph as he pulled Terry down with him to examine the light source. "I think that's a light. That's all we need. We've got power! Ha!"

The Doctor laughed gleefully as he pulled up the grating and hopped down below the console.

"It's alive!"

Terry just accepted the bits of metal gratings and pipes and wires that the Doctor pulled out of the way as he dug into the console.

"One of those insignificant little power cells that no one ever bothers about, and it's clinging onto life, with one little ounce of reality tucked away inside."

The Doctor pulled out the small, green jewel-like power cell that was glowing faintly.

"Oh, angel, we're not doomed after all."

"I know we're not." Terry answered, very tempted to kiss the Doctor for his adorable antics and child-like joy in the face of hope. But, as she had learnt from past experience, that would probably be a very bad idea.

'How on earth did he manage to do this with me? I'm going to go mad.' Terry thought to herself mournfully while the Doctor continued to ramble excitedly after blowing a little bit onto the power cell and making it glow even brighter.

"There, I just gave away ten years of my life. Worth every second. Now it should be ready to take us home in, ooh, twenty four hours?"

He kissed the power cell and beamed at Terry. She smiled back.

"Twenty four hours in a parallel world with you, Doctor? Sounds dangerous." Terry teased lightly although she had a very real fear for what was going to come.

But this Doctor was too young and as yet inexperienced with this regeneration of Terry. So he just answered with a cheeky wink.

"As long as we keep our heads down. Easy. No problem." He grinned before holding out his hand toward her. "Let's go and tell Rose."

"Don't forget Mickey."

Terry took the Doctor's hand and they both clambered to their feet.