Derek shrugged and smiled unpleasantly. He was done with Stiles' protests. He'd reached his proverbial line in the sand, and the boy was either going to pass the test, and submit, or they were done. "If that's what I want, then what's it to you?" he asked, pointedly. "I'm the Master. You do what I want. Maybe you and Isaac can share a room, to keep you from your antisocial ways."