Hang on, are you having me on? Or do you really think it might be Percy? I mean, he can be a real nob a lot of the time and he does want people like Mr Malfoy to notice him and think he's got potential or whatever. But do you think he'd petrify Terry? I dunno. I'd believe in a minute that he'd shout at him and probably get him punished if he thought he'd broken a rule, but-

Do you really think so?

I mean, he really does like to have people think he's important and he loves to tell people off. And the twins figure he was trying to learn how to do Imperius before the camping trip when he got in all that trouble with Mum and Dad. I'm not really sure, 'cause they never said what he'd done, but it makes sense because the Prefects on the trip were supposed to be allowed to use it if they wante needed to. So, I dunno, maybe?

And, sure, I guess it could be Stretton. Things have gone pretty rough for him since that whole potion bit last spring. I mean, he's off the Quidditch team and I heard the Ravenclaws won't even talk to him or let him sit with them in the library. What do you think? You lived with him for a while, right? Could he do it? Is he smart enough? And, y'know, mean enough?

And, yeah, Crabbe's mean enough, but he's totally not smart enough. Goyle, either. Otherwise it could be both of them together. But they'd probably just have pounded Terry not hexed him.