Harry Potter Birthday Celebration Wizard World and Muggle’s – Monday, July 31st at 5pm – Join us for Harry Potter’s Birthday Party at the Hogwarts Library! We will have the unveiling of the Harry Potter ginormous movie poster — donated by Mark del Costello; Harry Potter movie marathon with wizard treats! All wizards and muggles are welcomed to dress up for the fun! *all children must be accompanied by an adult, who must stay with their child. *Everyone attending MUST RSVP by calling 609-386-1273.