**He was a wizard. Tricks shots for a wizard aren’t the old three-times-round-the-table jobs. His best one was once off the cushion, once off a sea gull, once off the back of the head of the Bursar, who’d been walking along the corridor outside last Tuesday (a bit a temporal spin there), and a tricky rebound off the ceiling. He’d missed sinking the actual shot by a whisker, but it had been pretty tricky, even so.