The blood of the Underworld lord of evil runs through soul reaper Malthus Krayl's veins. Raised to fight for survival and to kill for victory, he can destroy anyone who poses a threat. As he searches for the one responsible for his brother's murder, he refuses to succumb to any distraction…until his sworn enemy crosses his path and tempts him beyond all reason.

Calliope Kane, a Daughter of Aset, has a personal hatred for soul reapers. Their savage attack against her family still haunts her. But only Malthus can help her find the traitors of her kind, and only she can help him hunt the source of betrayal amongst the reapers. As they unite, the danger grows closer…and the passion between them ignites.