Aumee is known as 'wannfota' by many in the Waystland: the bird with black feet. She is owned by Daya, a renowned witch who trains young women as her spies before selling them off as wives. In order to maintain what little freedom she has as Daya's assassin, she obeys any and all commands with no questions asked.

That changes when Aumee senses that Daya is after something important. After bargaining her freedom for the spellbook that Daya is after, Aumee is determined to find the book no matter the costs.

All she has to do is track down a spellbook, but she soon finds that her desire for freedom is further from her reach than she had ever thought. Forced to work with Daya's cursed informant, Fal, Aumee must bargain with a set of twins who own the book in order to fulfill her end of the deal.