Time is running out for the Angel Sworn.

Cimree's restored memories have shattered everything she thought she knew—about her past, her power, and the fate of a dying world. The twisted magic that birthed monstrous abominations is spreading, and she alone understands how to stop the devastation. But knowledge is useless without allies. To save humanity, she must persuade a rival band of Angel Sworn to stand with her—warriors who would rather see her dead and claim dominion over the survivors and the newly blooming Gallows Tree.

At the foot of the impenetrable Tirich Mir mountains lies Koa, one of the last bastions of humankind. There, Cimree, Trinati, and Uorsin hope to rescue the remaining Angel Sworn held captive. Instead, they walk into a trap.

Cimree soon finds herself the victim of a deception set in motion before the Queen Mother's death. For the fallen ruler named a successor—an heir far more ruthless and calculating than anyone suspected. In the shadowed tunnels, Azra and the others are ensnared in betrayals so intricate that even he cannot unravel them in time.

Alliances will fracture. Truths will be used as weapons. And as monsters close in from every side, the Angel Sworn must decide who they truly are.

A world stands on the brink—waiting to be saved… or destroyed.