Between the long lines of high bookshelves, Harry could see that their heads were close together and they were having what looked like an absorbing conversation. He couldn’t see whether Justin was among them. He was walking toward them when something of what they were saying met his ears, and he paused to listen, hidden in the Invisibility section. “So anyway,” a stout boy was saying, “I told Justin to hide up in our dormitory. I mean to say, if Potter’s marked him down as his next victim, it’s best if he keeps a low profile for a while. Of course, Justin’s been waiting for something like this to happen ever since he let slip to Potter he was Muggle-born. Justin actually told him he’d been down for Eton.