In the first book of a visionary fantasy trilogy with its roots in the mythology of Africa and Arabia that “sings of rebellion, love, and the courage it takes to stand up to tyranny” (Samantha Shannon, author of The Priory of the Orange Tree), three women band together against a cruel empire that divides people by blood.

When Reggie Johnson answers a job ad in the paper, she’s astonished to find that she’s not applying to work at her favorite card game, Spellcraft: The Magicking. Instead, she’s applying to be an actual familiar for an actual witch. As in, real magic. The new job has a few perks—great room and board, excellent pay, and she's apprenticing to a powerful witch. Sure, the witch is a bit eccentric. And sure, there was that issue with the black cat Reggie would prefer to forget about. The biggest problem, however, is warlock Ben Magnus.

Theodosia was six when her country was invaded and her mother, the Fire Queen, was murdered before her eyes. On that day, the Kaiser took Theodosia's family, her land, and her name. Theo was crowned Ash Princess - a title of shame to bear in her new life as a prisoner. For 10 years, Theo has been a captive in her own palace. She's endured the relentless abuse and ridicule of the Kaiser and his court. She is powerless, surviving in her new world only by burying the girl she was deep inside.

Nico has his own motivations for their union beyond maintaining peace with her family. A serial kidnapper known as The Collector has been ravaging the streets of Remnant Row, stirring up mistrust between natives and descendants. If Milla can help restore safety to his streets, he'll have no need for her or her family's company. Find the Collector, prevent a war between their sides of the city, and pay off the family debt before she turns twenty-one. If Milla can fulfill her end of the bargain, she'll walk away with more freedom than she's ever had before.

Shiori'anma, the only princess of Kiata, has a secret. Forbidden magic runs through her veins. Normally she conceals it well, but on the morning of her betrothal ceremony, Shiori loses control. At first, her mistake seems like a stroke of luck, forestalling the wedding she never wanted. But it also catches the attention of Raikama, her stepmother.