"I see you've heard of the case already," Mycroft gestured to the coffee table on which the map still rested.

"It's all over the place." Sherlock stared at the map, as if it would unlock some piece of knowledge to him,"OH!"

Everyone turned to look at Sherlock, the Doctor looking slightly alarmed. Mycroft looked at Sherlock typically, "What is it, Sherlock?" He asked impatiently.

"The art gallery. They all went to the art gallery. How did I miss that?"

"Yes and..?"

"It's in the art gallery." Sherlock was pulling on his long coat, "John, we're going to France!"

"I can't just-" Noticing the look on Sherlock's face, he gave in saying. "Ok."

"Ooh, I do love the odd art gallery." The Doctor grinned boyishly.

"You're coming with?" Sherlock stopped putting is scarf on, staring at him as if he were mad.

"Of course! That's what I'm here for, into the TARDIS everyone!" He cried, running into the police box, and realising no one was joining him, he ran out again, "What are you waiting for?"

"We'll never fit in there." Sherlock replied.

"Oh yeah?" The Doctor leaned on the door frame challengingly.

"Of course not, look." The Doctor stepped aside as Sherlock strode quickly to the door and stepped in.

When there was no gloating, John realised something had happened, "Sherlock? Is everything okay?", and when he received no answer, he too walked to the box. He stopped by the doorway. Sherlock stepped out, looked around, and stepped back in. He repeated this process a couple of times. The Doctor was smiling proudly, and Mycroft looked very amused.

Sherlock stuck his head out and stared with a confused expression at the Doctor, before saying, "It's bigger on the inside. That's-"

"Impossible." Finished John, who had simply been staring into the box, in the process of entering

"Go inside, I want to show you something." The Doctor gestured for them to go before him.

Mrs Hudson walked into the room, taking the tray, "Where are you going boys?After a moment's hesitation, both John and Sherlock walked slowly into the TARDIS.

Mrs Hudson walked into the room, taking the tray, "Where are you going boys?"

Before disappearing into the TARDIS, the Doctor turned and said grandly, "Saving the world, Mrs Hudson!"