As a Triad witch, Vivienne François knows better than to let Nikoli Hyland get too close. Her family's ancient curse means Viv can never be with the sexy human warrior. If she succumbs to her forbidden desires, she risks losing everything and putting all humanity in danger. Still, Nikoli affects her like no other…

Nikoli swore an oath to protect the world from the Cartesians, interdimensional beasts bent on destruction. He needs Viv's help to defeat them, but the feisty beauty's company makes focusing on the mission difficult. Viv and Nikoli know how to fight evil; it's battling their hearts that could be their undoing.