Ron had heard loads of stories about Snape, he was said to be a bitter and biassed man who was unfair to all the other houses yet treated Slytherins perfectly and wasn't looking forward to meeting him. The wall behind the prefects seemed to shift, as if it had come to life, it reminded Ron of snakes, a group of serpents sliding across the wall and revealing the entrance to the Syltherin's common room. Ron's heart was beating extremely fast, he was about to enter the snake's den.