"And it's inside," the Doctor says, restating the obvious. He pulls out the sonic and points it to the ceiling, but the readouts aren't clear enough for him to make any sort of judgment.

A tinny music begins to play and he spins around, but a tiny ballerina music box on the side table has opened without warning, and a little robotic ballerina does a dance on the center of it while a tune the Doctor doesn't recognize plays around her.

It's not often the Doctor is chilled to his bone, but this place downright scares him.

"I think we should leave this room," he says, taking a cautious step back.