"So, Mr. Killigan, I assume you know why you are here?" I looked up at the headmaster, Professor Dawes, unsure of what to say.  Maybe I could get off easy.  I really didn't want to leave the university; I'd worked hard to get in for a long time. "Don't play dumb with me, Mr. Killigan.  You know exactly why you are here."  He pushed a piece of paper across his desk.  I looked down at it and gulped.  CARTER KILLIGAN was wri...