Usually, there is a display of gold-embossed spell books the size of paving slabs in the window, but in "Prisoner of Azkaban", the front window holds an iron cage filled with hundreds of copies of "The Monster Book of Monsters". To deal with the vicious books, set for the third year Care of Magical Creatures class by Hagrid, the harassed manager had to gear up with thick gloves and jab at them with a knobbly walking stick, as the books tended to rip each other apart. The manager says that he had thought he had seen the worst when they bought 200 copies of "The Invisible Book of Invisibility", which were promptly misplaced.