Robert Bloch

For a moment, Norman could almost hear it, and then he remembered that rain has its rhythm too, and footsteps. Actually, he was aware of the footsteps without even hearing them; long familiarity aided his senses whenever Mother came into the room. He didn't even have to look up to know she was there. In fact, he didn't sleeping in her room, and he knew how crabby she could get when just awakened. So it was best to keep quiet and hope that she wasn't in one of her bad moods.