The surface is within reach-but survival is slipping through their fingers.
Claire and her allies have fought, bled, and sacrificed to bring the rebellion this far. But with Darkmor's forces closing in and the cavern itself crumbling beneath them, time is running out. The final gemstone is still lost, and without it, the power to shatter the emperor's hold may remain beyond their grasp.
Worse still, something ancient stirs in the darkness. A force neither ally nor enemy, one that could tip the scales of the war-or swallow them whole.
As alliances are tested and secrets unravel, Claire must decide how far she's willing to go, how much she's willing to lose, and whether love can survive when the world is on the brink of collapse.
The rebellion rises. The world fractures. And the final battle draws near.