Alexandra Madison has discovered an invention that could change the world. When her partner is murdered and their lab destroyed, Alex knows she has to rebuild her prototype in time. . . Donovan Shea knows the Madison project is of dire importance to the ongoing Pyr/Slayer war. So when he sees Alex being followed by a Slayer, he reacts and defends her, never imagining that she’s his destined mate. . . As Slayers close in on their prey, Donovan knows he’ll surrender his life to protect Alex—and lose his heart to possess her. . .