Since discovering the truth of his parents' twisted bargain for immortality, Ahmu has committed to one thing: vengeance. Whether demon, human, or yenni, no one will stand between him and Balases, the god of the Yenanwa.

Hollowed out by grief, Ahmu rages through the Imperium of The Blackened Sun. His quest for revenge comes at a time of burgeoning instability for the kingdom of Balases - corruption and decadence are rife, degrading the Yenanwa who partake in them.

If the society of immortals cannot come to an accord, the petty lords who rule them may destroy one another - and both worlds in the process.

But what does that matter, to a man who's already lost everything? The rebel demon Misout holds the answer to Ahmu's questions - but seeking his help may doom them all.