Their father is dead. The fortress is overrun. And Rin finds her twin brother in a brothel with his fingers in some girl's mouth.
So begins the Sonakh family's exile-three siblings bound by a Blood Oath that means if one dies, they all do. The youngest, Darka, is Light-touched in a world that still treats her kind as livestock. The oath was supposed to protect her. Instead, it made her a leash around her brother's and sister's throats. In the capital, they start over. They move into the shop of an artificer who won't let Darka touch him, calls her his nightmare to her face, and still makes coffee for her every morning. Rin discovers her mind can break people-and she likes it.