This is book number 3 in the Daughter of Smoke and Bone series.
The epic conclusion to the New York Times bestselling Daughter of Smoke and Bone trilogy
Karou is still not ready to forgive Akiva for killing the only family she's ever known. But when a brutal angel army trespasses into the human world, Karou and Akiva must ally their enemy armies against the threat-and against larger dangers that loom on the horizon. They begin to hope that it might forge a way forward for their people. And, perhaps, for themselves-maybe even toward love.
From the streets of Rome to the caves of the Kirin and beyond, humans, chimaera, and seraphim will fight, strive, love, and die in an epic theater that transcends good and evil, right and wrong, friend and enemy.