The monster behind the wall stirred. I'd come to think of it as a monster, but it was just me. Or the darker part of me, at least. You probably think it would be creepy to have a real monster hiding inside of you, but trust me - it's far, far worse when the monster is really just your own mind. Calling it a monster seemed to distance it a little, which made me feel better about it. Not much better, but I take what I can get.