Pollution raised both eyebrows then. What could possibly be more challenging than trying to speed up the effects of global warming? Granted, he hadn't seen much of the world before Pestilence's retirement; doubtless he'd been taking electricity for granted all this time. (Computers were by far his favorite, though. So many viruses, so little time.)

"Wherever I could put myself to 'good use,'" he replied. "I've heard quite a bit about Ravenclaw, though. Does it really have a bar?"