The Doctor stopped abruptly after slamming the door to Jack's office behind him. This... wasn't the cavern he'd expected. On the other hand, there was a familiar face. "Oi! Mickey!"
So long as the boy didn't start in on him about being a bastard for running away after Rose had died, he might be able to deal with him. Though, he wasn't dressed in the outfit he had been less than ten minutes ago. And there was... sand?