 She ran up a flight of stairs to catch up with Draco and caught a glimpse of his cloak as he turned a corner. Hermione followed him and found herself in a corridor with classrooms on either side and no sight of Draco. One of the classroom doors, however, was open, a stripe of dim light coming through and reflecting on the stone corridor floor. Hermione steadied her breath and walked in, closing the door behind her. 