The 1950s style, blue Police Box took up most of the space in the living room, and stood between the two armchairs, and the coffee table that was normally in its place had apparently disappeared.
John was bewildered, "Wha-"
"Now Sherlock, what's all that noise?" Mrs Hudson came bustling in, stopping short at the sight, "Why is there a bloody Police Box in my living room?! Sherlock, is this one of your experiments?!" She looked over to John but he shrugged.
"Indeed, it is not Mrs Hudson. Though I have been expecting our visitor. Something I'm sure my brother would like to explain." Sherlock's voice rang through the living room, coming from behind them.
Mrs Hudson was not best pleased and impatient, "Yes please explain, Mr Holmes."
He cleared his throat and stepped forward, "Our guest is certainly not ordinary..."
As if on cue the door opened, and revealed a young man wearing a bowtie and a tweed suit, "Hello everybody! I'm the Doctor!"
He looked around at the intrigued face of Sherlock, the shocked one of John, Mrs Hudsons stern one, and Mycroft's bemused one.
"Mycroft!" The two strode towards and greeted each other with a hearty handshake and slap on each other's shoulders, and the Doctor leaned in, "How was that Irene Adler case?"
"Oh, we solved it, over two years ago." Mycroft smiled.
"Time flies."
"Would you care to introduce us?" Sherlock's cold voice cut across the exchange. Mycroft's smile faltered.
"Everybody, this is the Doctor. I'm sure you know who they are, Doctor." The Doctor smiled and awkwardly waved in response, before rubbing his hands together.
"How about a nice cup of tea, Mrs Hudson."
"Of course." She looked a bit fed up, but complied none the less.
"Do you have any Jammy Dodgers?" The Doctor called after and Mrs Hudson couldn't help but smile.
Sherlock stood by the window, seeing as his space was occupied, and impatiently waved a hand.
"Well, it must be important."
Mycroft sighed, "It is. I guess you noticed the disappearances at that art museum in the news. It needs to be stopped immediately."
"Mm. So why did you invite your friend?" Sherlock was running his fingers over his violin bow thoughtfully.
"It's... extraterrestrial."
John gasped, "What?"
"Oh, we've had contact with aliens for over 50 years," Mycroft looked at the Doctor pointedly, "Not all of them are necessarily bad. But this one is, and the Doctor's an expert, and he needs help."
Sherlock looked un-phased, "So why us?"
"We thought you could help the Doctor solve this one."
"Right. So you want us to run off with this.. man and save the world?" John was not impressed.
"Isn't that what you usually do?" Mycroft's answer silenced him.
"Come on John, it'll be fun." The Doctor grinned at him lopsidedly.
"I agree." Sherlock's input grabbed everyone's attention.
"So you'll take the case?"