"Ready?" They paced back and front in front of the door three times and Draco opened it to reveal a scorched room - with two small bookcases that were untouched full of books, some scorched, some water damaged; it took Draco a couple of seconds to notice that the entire left hand wall, floor to ceiling, was covered in old textbooks lost by students as well as there being useful books in the cases. "And sorry." That last was addressed to the room.