Brown came in and did his trick with the two little boxes, one on the door, one on the doorframe. They were that same shade of gray, like the gun and the flashlight and the monocular. He’d do the same with his own door, and all of this, as far as Milgrim knew, so that he, Milgrim, wouldn’t decide to leave while Brown was sleeping. Milgrim had no idea what the boxes did, but Brown had said not to touch the doors when they were up. Milgrim hadn’t.