Sidonie Wolf never wanted the traditional life of a female vampire, but she must accept her duty to her kind, even if she's already given her heart to a werewolf she can never have. Erasing Joe Bleythin's memories of their blistering affair was necessary to keep him safe, but he sees her betrayal as unforgivable. So Sid's new assignment to work with Joe to track down supernatural terrorists is sheer torture. Joe can't believe his new role with an elite military team known as the Dark Angels has drawn him into an uneasy alliance with the woman who deceived him. Now, partnered with Sid on a dangerous mission, he'll discover just how deep desire can be -- and just how far he'll go to keep her.