World of Harry Potter Puzzle. Relive the magic of seeing Hogwarts School of Witchcraft and Wizardry for the first time, while putting together this 550-piece puzzle. J.K. Rowling's popular children's novels about Harry Potter tell the story of a boy who learns on his 11th birthday that he is the orphaned son of two powerful wizards and possesses unique magical powers of his own. Invited to attend Hogwarts School of Witchcraft and Wizardry, Harry embarks on the adventure of a lifetime. At Hogwarts, he finds the home and the family he has never had. 550 Pieces. 18" x 24" Finished Size.