Azetla has served the Maurowan Army for thirteen years. There are seven left to pay. A pariah and a debt soldier, he is a commander with no rank, a soldier without citizenship, and wears a sword that it is unlawful for him to either own or use. He has learned to hold his tongue or risk losing everything. When Azetla’s battalion is sent into the desert to catch a Sahr devil—one of the famously brutal inhabitants of the region—his tenuous position is threatened. He discovers that there is far more to this mission than catching a fiend. For the Emperor of Maurow, it is a way to prove that he fears nothing, not even devils. For the Emperor’s brother, it is a stepping-stone to rebellion. For Azetla it could be deadly either way, as he is cornered into choosing a side in the coming coup. But the devil that Azetla finds in the desert is not what anyone expects or wants. As the conspiracy against the Emperor becomes entangled with the simmering ambitions of the desert tribes, Azetla must decide if he’s willing to strike a bargain with a devil in order to survive. Naturally, she is not to be trusted. But then again, neither is he.

After capturing a jinn-devil and fleeing to the desert, Azetla has exchanged the threat of execution for the weight of high treason. Thousands of men are now under his command—for the Emperor’s brother must have both a scapegoat and a symbol to stand behind his quiet coup. But Azetla has different plans. He means to bring his masters a war which will spread throughout the southern desert, and beyond. As Azetla gathers troops and tribes and victories, his reluctant alliance with the Sahr devil becomes an indispensable one. Few can resist the influence of her words, which reach every tongue and every tribe. The rebellious nobility of Maurow will get more than they ever bargained for. The Emperor’s brother, James, will become a far more ruthless man than he ever wanted to be. And the whole southern desert will be tempted by the chance to cast off the yoke of the Empire They need only submit to the command of a jackal and the voice of a jinn.