Isaac wasn't sure when he had awoken, or what the cause had been. It felt like Derek's anger had electrified the room, and Isaac was on edge immediately. He was on his knees, on the bed, by the time Derek turned back to him.
"Stiles?" he said, not having heard the conversation between the guard and his Master, but clear recognizing the look on Derek's face.
"I'm assuming he's used his usual good sense?"
Isaac wasn't usually so sassy, but it was really early, or late, depending on which way you looked at it. That, and he hadn't exactly had the best day either.