[ She looks up from scrutinizing the label on a long, blue shirt when BB produces a sound she's never heard before. It's unique. Can other people do that...? She won't ask, but she will absolutely wonder. ]

I don't really know anything about magic. [ She'll admit her ignorance, aware as she is that it would sokn become apparent one way or another. ] But if it's so demanding, someone must have a compelling reason to go to the trouble.

[ Which, as BB says, could be a very bad thing for them. ]