Ah, that's why you've been so uncharacteristically quiet this morning.
My old home town, Oak Park, Illinois (Birthplace of Ernest Hemmingway and site of Frank Llyod Wright's Home and Studio) turned a street into a replica of a scene from Harry Potter. Children dressed in costumes and reveled until 1:00 AM. I suppose they stopped partying at Midnight to buy their books.
I imagine there are millions of bleary-eyed children around the planet today