Help Harry Potter and Hermione Granger find the Horcrux diadem! Follow The Gray Lady's instructions and head to the mysterious Room of Requirement. Explore the trash piles to find the diadem. But beware Fiendfyre has turned into a fiery serpent! Fly on broomsticks to escape the blaze. Save Draco Malfoy and Blaise Zabini, and get out of there before the Fiendfyre catches you!