Biff creeped through the house as quietly as he could, and started looking about for Jon's room.
Finding it turned out to be easier than he thought: all the other bedroom doors were shut, but Jon hadn't bothered to shut the door behind him when he left earlier. Hence the only door Biff could look into showed the faint, dark outlines of a teenage boy's belongings; probably Jon's room. Biff entered, closed the door behind him, turned on the lights, and started looking around.
