The walk to defence had been a little uncomfortable for Harry. Hermionie had been peppering him with endless questions about how he had managed to perform the unlocking charm to which he had no answers. Ron had been out of it, walking ahead of the group and not saying anything to them. This is probably why he and the other two arrived before the rest of the Slytherin class. The classroom was bare, a wooden desk at the front and a black board were the only items the teacher had set up, rows of chairs and tables also lined the room. A man sat on the wooden desk, his eyes closed and could have been mistaken for being asleep if it wasn't for the fact his body was completely rigid.