"There are more runes here - where he must have stood when he cast his spell and sent everything to hell," Draco continued but Harry was only half listening - he shuffled his feet back slightly to reveal another scorch mark on the floor, "But I can barely make them out - they must have been damaged by the explosion," he crouched to peer closer but the mark was too indistinct to establish what had once been there, "The light is so terrible up here! If I could just see more-,"