Cedric entered the room of requirement. He been wandering around Hogwarts for hour in search of a quiet and peaceful place. And luckily, He remembered that a Room of Requirement is a place where you can enjoy your free time and its quiet and peaceful there, but not when there's so many students inside. He dunno, but he's quite inspired of practicing some spells at the Room of Requirement, maybe its because he can find some good practicing stuffs at the room.