New York will be one big Harry Potter party when the new book is released Friday night. “The front of the Time Warner Center will be bathed in orange light, and the lobby in front of the Borders bookstore at the center will be draped in curtains and decorated with ice sculptures. Magicians and balloon artists will be on hand, and a fortuneteller will look into the future at a ‘divination station.’ Then, shortly before midnight, a horse and carriage will pull up…”