The sixth and final book in this dark urban fantasy series filled with heart and hope, angels, Watchers, and Elder gods.Night Sanchez walks the darkest road of all. As the Apocalypse closes in and the world breaks under the strain, can she stop the destruction?Months after Night becomes one with the Angel of Death, she has barely begun to understand her transformation. Her found family doesn't trust the new Night. But she needs them more than ever once the fourth Horseman rises.When the Angel of Death reveals his catastrophic endgame, only Night stands between the world and his apocalyptic fire, but even she doesn't have the power to defeat him. Night's heart might hold the key to victory—but only if she's willing to surrender her soul…