From Introduction: The Jeshatan have mastered many kinds of spells, one of which are Spells of Vengeance. Vengeance is one of the twelve great schools of their Arcane Collection. They are taught at a very young age, and nearly all of them know at least some, while the truly vicious among them have mastered the wicked. There are harsh laws in their society, but the unwritten ones of revenge are even harsher.