" He remembered her wild moods from her first life; death had done nothing to settle them. Some physicians thought that her particular combination of mania, black despair, and violent temper was an illness, an imbalance of humors or aethers. But if it were a physical malady, shouldn't it have died with her first body? A defect of the soul, perhaps? Or was she simply so used to being mad that it had become habit? "

― Amanda Downum , The Bone Palace (The Necromancer Chronicles, #2)