Edge of Dawn (Midnight Breed, #11)

Twenty years after the terror of First Dawn--when mankind learned that vampires lived secretly among them--the threat of violence reigns as the two species struggle to coexist. The only group preserving the fragile harmony is the Order, an elite cadre of Breed warriors dedicated to protecting humans and vampires. Mira, a fiery squad captain, is torn between her dedication the Order's mission and her attraction to Kellan, the leader of a band of rebel humans.