Harry Potter: The Official Seasonal Surprises Advent Calendar celebrates the magic of Hogwarts with 25 days of exclusive surprises, keepsakes, and collectibles delivered in a stunning keepsake calendar format. DISCOVER MORE THAN 25 HARRY POTTER SURPRISES: Discover a new holiday surprise every day! Each of the 25 doors features a well-known relic of Hogwarts, from the Wizarding School’s most iconic ghosts to the sorting hat and more! COUNTDOWN TO CHRISTMAS: With 25 days of all-new items themed to the Harry Potter films, countdown to Christmas by opening the door to a surprise each day from December 1st through 25th. COMPLETE YOUR HARRY POTTER CHRISTMAS COLLECTION: Pair with Harry Potter: Christmas at Hogwarts, Harry Potter: A Hogwarts Christmas Pop-Up, Harry Potter: Pop-Up Holiday Wreath, and Harry Potter: Christmas Sweater Blank Boxed Note Cards.