An unexpected gift holds the power to change everything. But keeping it may cost Diem her life.

As war looms, Diem Bellator discovers a secret that could save her people. To use it, she must survive the next thirty days by striking a dangerous deal with her enemies—the royal family of House Corbois.

Immersed in the opulent world of the Descended elite, Diem realizes that the line between good and evil is not so clear. Old hatreds fade as new alliances form, blurring the boundaries between friend and foe.

With her mother missing and the enigmatic Guardians pressing their demands, time is running out. Torn between an old flame and a forbidden new desire, Diem must confront the truth about who she is and what she wants.

War is inevitable, and enemies lurk on all sides. Will Diem harness the power of her unexpected gift before it's too late?