Gina O'Neill will do anything to hold on to her beloved ranch that has been in her family for generations. Enter Mateo Mecate, an archeologist whose greatest wish is to dig there. Prepared to despise Matt—and to thwart his agenda—Gina cannot deny the shocking desire she feels for him.

Matt believes that the Nahua Springs Ranch holds an important key to Aztec history—one that will restore his standing in the archeological community. But he never expects to go head-to-head with the maddeningly sensuous owner, Gina. The ranch seems to have cast a spell on them both...

When Gina and Matt delve into the secrets of this ancient place, they awaken something unspeakably evil—a shapeshifter who is centuries old. A werewolf with vengeance on its mind. A sorcerer of incredible power. Can Gina and Matt defeat this enemy—even as their conflicts deepen...and their attraction grows more dangerous?