Inspired by a post by tumblr user elemensy and comments by trueamericanenglish and hippity-hoppity-brigade.
I don't own Doctor Who or BBC Sherlock.
Molly was keeping to herself, eating her lunch on a bench outside St. Bart's. Not because Caroline said she spends all her time in the morgue, it was just a coincidence and the sun was out earlier so she thought it would be nice. And anyway, there was plenty Molly could say about Caroline that she didn't, because she was nice, so Caroline could just keep her thoughts to herself for once.
It had looked really nice earlier, but by the time Molly got outside the sun was gone and it was actually getting a bit chilly. She was thinking about going back in to eat in the morgue – not that she was avoiding her co-workers, she just didn't feel like chatting today. And there wasn't much difference between sitting alone on a bench and sitting alone in the morgue, plus she had left her phone up there and-
Molly peered over her sandwich, head slightly tilted.
Did that man just lick a book?
Molly continued watching and decided that yes, he had. The man had picked up a book discarded on the curb, looked at the front cover, and licked it. Then he lifted his head, puzzled, and looked around. He had that face on, one that reminded her of Sher- of someone else. He seemed to be looking intently for something, observant to the point of blocking out everyone around him.
Molly got up to throw away her lunch – honestly she wasn't hungry, and anyway she should be getting back to work – and found her feet carrying her over to the strange man. He was walking down the street, almost to the corner before she caught up with him.
"Excuse me!" she said, not quite sure what she meant to follow it with. The man didn't react, so she tapped him on the shoulder. He turned, and Molly noticed he was still holding the book. "I, um… What time is it? I mean, do you have the time? I just, I left my phone in the morgue – I mean I work in the morgue, that's why my phone's there, and I left- why do you have a book about Sherlock Holmes?"
The man raised an eyebrow and smiled. He looked like the sort of person who could cause an awful lot of trouble.
"That's the question, isn't it? What's your name?"
"Um, Molly Hooper, but-"
"Well, Molly Hooper, I'm the Doctor, and I need you to help me find the nearest bookshop," the man – the Doctor – said, turning on the spot and striding down the street.
Molly stood for a moment, confused (Doctor who? she wondered,) before hurrying after to tell him the bookstore was the other way.
AN: I might possibly have some more dramatic Wholock featuring the Baker Street Boys that takes place sometime after this.