第十五章（90）

Chapter 15: Through the Trapdoor

Harry, Ron, and Hermione decided to prevent Voldemort from obtaining the Sorcerer's Stone. They went through a series of complex traps and obstacles, including Hagrid's three-headed dog, magical plants, a giant chessboard, and a logic puzzle. During the process, Ron was injured while bravely sacrificing himself in the chess game, and Hermione solved the logic puzzle, leaving Harry to face the final room alone. Harry discovered that Professor Quirrell was the one searching for the stone, with Voldemort attached to him.