Long before he was sent to hell, the Aeon known as Khoth-Kapira was the closest thing to a living god the world had ever known. Possessed of a vast intellect, he pioneered many of the wonders that persist in the world that lingered long after he was banished. Nearly every fragment of medical, economic and technological progress that the mortal races enjoyed could be traced back to him. But with his wonders came cruelty beyond measure: industrialized slavery, horrifying experimentations and a rage that would eventually force the world to bow to him. Now, as Khoth-Kapira stirs the world begins to shudder with disasters yet to come.The epicenter is the city of Cier'Djaal. A religious war between two unstoppable military juggernauts begins to brew. The racial fury among many peoples of the world is about to explode. Demons begin to pour from the shadows at the head of a vicious cult worshipping dark powers. And Lenk finds himself in the middle once more, his fate and the fate of Khoth-Kapira interlinked as the demon attempts to convince him of his earnestness. "Your world is breaking around you," He Who Makes says, "let me fix it. Let me help you. Let me out."

The heart of civilization bleeds. Cier'Djaal, once the crowning glory of the civilized world, has gone from a city to a battlefield and a battlefield to a graveyard. Foreign armies clash relentlessly on streets laden with the bodies of innocents caught in the crossfire. Cultists and thieves wage shadow wars, tribal armies foment outside the city's walls, and haughty aristocrats watch the world burn from on high. As his companions struggle to keep the city from destroying itself, Lenk travels to the Forbidden East in search of the demon who caused it all. But even as he pursues Khoth-Kapira, dark whispers plague his thoughts. Khoth-Kapira promises him a world free of war where Lenk can put down his sword at last. And Lenk finds it hard not to listen. When gods are deaf, demons will speak.

Sam Sykes returns with the exhilarating conclusion to his Bring Down Heaven trilogy. The great demon Khoth-Kapira has broken free of his prison and taken his first step upon the mortal world. And he owes it all to Lenk. Believing that the demon will heal a broken world that the gods have abandoned, Lenk serves as reluctant champion to Khoth-Kapira's cause. But as the desperate and fearful flock to Khoth-Kapira's banner, begging for salvation, Lenk begins to doubt his patron's great designs. The city of Cier'Djaal, meanwhile, has become the field for the last great battle of mortals. And as humans, shicts and tulwar prepare to tear each other apart, none are aware of the ancient horror that marches upon their tiny wars. At the tip of a spear or beneath the heel of demons, the reign of mortals ends.