Love, quick note from something that came up, chatting to Poppy.

Apparently, Irma's found an interesting reference to a chastity charm that backfired badly (cast on a female student, by her parents, without her consent), which lead to some rather troubling results (they couldn't be even a foot apart, had to leave school entirely.) I'll get more of the details out of Irma, anyway.

I mention for the obvious reasons, in case you need a little persuasion for your brother about the complexities of some kinds of interactions with the castle magics.