The Death of Promises (Half-orcs, Band 3)

David Dalglish continues his series of the half-orc brothers, whose struggles have released demon fire across the land of Dezrel...Five hundred years ago, brother gods devastated their world with civil war. When they were imprisoned, their conflict ended without a victor. Centuries passed while their followers secretly continued the war, a war that will soon have an end. The gods have found their paragons.

After a bloody conflict with his brother, Qurrah Tun flees west with his lover, the strange and powerful Tessanna. He seeks a powerful tome known as Darakken's spellbook, guarded by paladins and priests of light. Qurrah hopes to cure Tessanna's madness, but his newly returned master, Velixar, has far greater plans for the tome. Only Harruq Tun and his friends can stand against the darkness his brother has unleashed. Velixar wants the throne and the secret that it hides, and to do so he will lay siege to the great city of Veldaren.

THE DEATH OF PROMISES by David Dalglish
The gods' final war has begun, and the blood is on Harruq's hands.