Carguacountii
Not anything, but certainly something about child abuse, when, and I can't emphasise this enough, you're responsible for teaching children is certainly an auto disqualification.
Fans of that book, or the literati, always say that, and yet its very popular with child abusers. No doubt there are those who read it and were disgusted. Most people however don't need an elaborate fantasy novel to tell them that kind of thing is very very bad.
If I've misunderstood the message, and others have too (it isn't generally well liked, except in certain circles, usually called at least 'controversial'), then we can be sure that anyone writing such material shouldn't be a teacher, and certainly children shouldn't be exposed to it - and the way communities work, children at such a teacher's school would be well aware of any controversial publications they might have made. Personally, I think it is a literary trick (like the 'poverty porn' genre) to justify the promotion of dodgy material to a certain class for titilation, so I'd do a lot more than sack such an author.