"Magic does as it will. The odds of five roommates all being supernaturally capable are rather...small, but I suppose improbable is not the same thing as impossible," Anna says, rising from her own bed. "And if it's all the same, I'm not really sure why we'd want to involve the headmistress in this; if she's aware of magic, she won't see it as anything to worry about, and if she isn't...well, she'll forget after a while anyway."