Aria is a slave. Sold at the age of three, she knows of work that wears to the bone and the cruelty of men in power. Katia is the daughter of the beloved King Dagon, and the sole surviving heir to the throne of Lothlin. She knows of privilege and power and those who would seek to take it from her. When Aria is visited by a man from her forgotten past who revels the truth of her parentage, she has the choice to remain unknown or to fight for what is hers by blood and step into the role of Katia: the lost heir.