If you creep quietly down the almost empty Second Floor corridor and find yourself in front of a bizarre statue of a humpbacked witch, pull out your wand and climb around to her back. Tap your wand against her Hump and utter the words "Dissendium" and watch as a doorway in her back swings open connecting Hogwarts School with the Cellar of Hogsmeade's finest sweet shop: Honeydukes