I'm too overwhelmed to say much at this stage, except that I expected exactly this cliffhanger ending all while hoping that it wasn't coming. Very Greek tragedy in that way. Can't wait for the final book.

Otherwise I'll just say again how refreshing it is to have a main character in a wizarding school story who recognises the injustices in wizard society, and then instead of just trying to restore the status quo and feeling vaguely sorry for themselves, she does something to fundamentally make things better. (Yes, that's a subtweet.)