[He could be going faster. He can typically keep up with a regular walking pace. When he wants to. It's for the best to be underestimated in these things, though.]

Magic. It's not real. I'm sure you saw an 'impossible' trick once. Trust me. There's always a trick.

[House knows a few of them. But there are doors to attend to. And the sudden, very loud sound of the piano going off behind the door.]

Music room. [He drops some of the sarcasm.] Wonder who's playing.