AN: Okay, first I am so so so so sorry at how long this chapter has taken me, I'm usually much quicker, but what can I say it's been a majorly busy week (the trouble with working two jobs) and any chance I have had to sit down and start writing and I couldn't seem to get in the zone. Hopefully I'll be back on track now, but I can't make any promises.

This chapter is a bit different from my usual layout, a bit of jumping about with POV's, but it was the only way I could make it work. Hope you enjoy :)

Kaitlin Moriarty drummed her pencil against the desk, watching the clock ticking closer to 3 o'clock. The work the teacher had set was easy, and she'd already finished, while other kids scribbled away frantically, trying to get it done before the bell rang so it wouldn't end up as homework. Her mind wandered, imagining what the surprise her Uncle Jim had promised her would be (probably that adorable beanie baby she had been admiring for days) and before she knew it, the bell was ringing. She barely waited for the teacher to dismiss them, as she quickly shovelled her things into her backpack ready to leave, and was the first out the door. She called goodbye to her friends, waving back at them as she ran across the playground to the car park, and the car that was always waiting for her.

She vaguely noted that she had a new driver again, a lot sooner than usual, but thought nothing of it, as she strapped in and turned to stare back out the tinted window, losing herself in daydreams again.

She heard the hiss of a canister before she turned and saw the fog, coming directly for her and blocking her view of the driver. She sucked in a big breath and screamed, but it soon trailed off as a wave of sleepiness overtook her and dragged her down into it's depths.

"Is she out?" Sherlock asked John, who straightened up in the passenger seat where he had been ducked down to hide, and looked over his shoulder at the girl slumped in the back seat, her form hazy in the fog.
"I think so." He replied, his voice muffled as Sherlock's had been through the gas masks they were both wearing.
"Good" Sherlock turned the air con up to max and opened his window halfway, dangling an unlit cigarette from his fingers out the gap, to account for the smoke to any casual observers.
By the time they reached Kaitlin's supposed address the fumes had dissipated enough to close the window, but he rolled it down again in direct sight of the camera, holding up a cardboard sign in front of his face to block it from view.
A. sends her love
He knew Moriarty would recognise his handwriting, though it would not be enough to convict him on. And if Mary was correct that Moriarty knew of her previous life, the message would no doubt be understood.
They drove on for another 10 minutes, taking every windy back road void of cameras that Sherlock knew, until they reached the agreed drop off point, where Mary was waiting for them. Sherlock and John got out the car, And after a quick kiss from her husband, Mary took up the driver's seat, to take the girl to her new home for the next few days, and leaving the men to take a cab back.

Kaitlin awoke with a fuzzy mind, struggling for a second to remember what had happened and why she was asleep. When the memory of the fog in the car came back to her she bolted upright, taking fast panicked breaths and looking around. She was in a small bland bedroom, tucked up in a single bed, and she wasn't alone. A woman with short blond hair got up from a chair by the door, rushing over and crouching down beside her bed.

"Hey there Kaitlin, calm down okay, you're safe, everything is okay." The woman soothed, her eyes warm and reassuring, but Kaitlin wasn't completely reassured just yet.

"Where am I? Who are you?" Kaitlin asked, her voice only hitching slightly as she tried to get her breathing back under control. If she worked herself up too much she might have an asthma attack, and since her bag had been taken off her and she wasn't sure where her inhaler was, that would not be good.

"My name is Anna." The woman told her "You've been brought to a safe house, and your uncle sent me to look after you. Tell me Kaitlin, do you know what your Uncle does for a living?"

Kaitlin nodded, but bit her lip, not sure if she should say. Her Uncle had told her it was their secret, but if this woman worked for him, surely she knew anyway? "He's a secret agent, helping solve crimes all over the world, and trying to uncover the criminal mastermind, Sherlock Holmes, because most people don't believe he's a criminal, because he pretends to be a detective."

The other side of London, John gasped hearing these words come through the speakers of his computer, as him and Sherlock watched on over a remote feed.

"So that's how he knew he could make England swallow the lie that I was a fraud and a criminal." Sherlock mused, "He'd had practice."

If Mary was shocked by the girls answer, she didn't show it. She had been through several possible scenarios in her head, and though this had not been one of them, it was easy enough to adapt one of her answers for.

"That's right" She said, not really liking propagating the lie in the girls head, but now was not the time to turn the girl's world upside down. She needed to keep her calm and gain her trust, and this was the best way to do that. "And that's why he needed you brought here. He was on a particularly dangerous and important mission, and his cover got blown, so he needed to get you out of harm's way until he can wrap it up, in case they came after you. Do you understand?"

Kaitlin nodded, but looked a bit frightened. "Will Uncle Jimmy be okay?"

"Don't worry, he can take care of himself." Mary reassured her, with just the tiniest twinge of guilt.