He had seen Kate's dreams from outside and knew their signature, and so he patrolled, watching and waiting. Whenever one of them bubbled up in the dreamscape he was there, circling around the edge and categorizing it in a language that few non-thestrals knew. He would skim across the surface of it, letting the feelings of the ever-shifting dream touch him lightly, and then his wings would twitch or his ears would move and if it was bad, his roostmate would chitter to others and they would tell Princess Luna.