But then, suddenly and shockingly, I felt Rodney Grey-briar's eyes on me, steady and concerned. I felt the presence and the strength of his personality pass through my mind like a brisk wind, blowing away all traces of the abnormal thoughts I'd been thinking a moment ago as if they were so much dust. My snarl became a scream of rage, of horror at what Skyhill had almost done to my mind. The Roomsweeper came up, and roared. I jacked another round into place, pulled the trigger again.