Rose didn't want to think about the worst. Trevor wouldn't die. A murder at Hogwarts would be too big of a scandal to handle, even for such chameleon-like killers like them. But what did she really know about the Children of Salazar and their strategies? Draco was at the castle at that moment. He had gone to talk to Professor Kettleburn. If even the teacher was a accomplice, perhaps he was already taking care of eliminating him.