"No," William answered. "Spencer's in the library, and I haven't heard from anyone else." That reminded him, though. "I need to send an owl. Are there some still in the dormitories, that you saw?"
He still wasn't sure which dormitories the students were in, either; their own, possibly, which meant spread across fourteen rooms. He turned around at the top of the stairs and cast a freezing charm down the walkway behind him, sending slick, nearly-invisible ice crackling from his toes all the way back down to the portrait hole. Pete could navigate it easily enough, but without magic or common sense, William suspected the House-elves might have more difficulty.