I don't know what kind of shitstorm would happen, or even if any storm would happen at all. I'm thinking the author and story would make a huge difference: if it's a well-loved character from a long-running fantasy series, then yes, shitstorm central.

If not... I'd like to think a lot of this would depend on the tone in the book, and whether readers had picked up that it would be *that* sort of novel.