Sometimes miserable things happen in a final book and the series overall turns in to something even more amazing — you feel every success and struggle more deeply and truly and memorably because of the agony and the high-pitched stakes. Sometimes, though, miserable things happen in a final book and those consequences actually manage to undo every good and bad thing that has happened in the series before it — everything is now rendered meaningless and not worth it in light of the way events unfolded in the end.