LEGO set 40577 is the "Hogwarts Grand Staircase," a promotional set released as a gift with purchase for other LEGO Harry Potter sets. It includes 224 pieces and features a rotating staircase and swappable archway panels. The set also includes a Hermione Granger minifigure with a black skirt and dual-sided face. The staircase is designed to connect with other modular Hogwarts sets.
