Dark Lover by J.R. Ward — book slip

As the leader of the Black Dagger Brotherhood, Wrath is the last purebred vampire and is consumed by a desire for vengeance against the slayers who killed his parents.

When his most trusted fighter is killed, Wrath is thrust into the role of protector for Beth Randall, a half-breed unaware of her vampire heritage.

Drawn to Wrath's dangerous allure, Beth finds herself caught between fear and a burgeoning desire. As their worlds collide, Wrath must navigate his own dark past to protect the woman who ignites a new hunger within him.

First in the Black Dagger Brotherhood series, for fans of Sherrilyn Kenyon's Dark-Hunter series.