@boag that's kind of my point. I think the author DOES remember their own plot point and that the matron is full of shit, either that or she doesn't know how it truly works despite being a silver that survived. Either way I don't think the one not chosen will simply "vanish" i think the matron does something terrible to whoever isn't chosen that somehow causes prosperity for the family. I think "vanish" is merely a euphemism for that.