"I know the taste of your Sin." In her quest to save the soul of the man she loves, Niobe is offered help from an unlikely source... Essessa. But can she trust the Devil's general? It may be that they have more in common than Niobe ever knew, and that Essessa has her own reasons for rebelling against The Untamed. The origin of Niobe's greatest villain, the antagonist seen in the Untamed and Niobe series, will be revealed.