She's the only one of her kind. And she doesn’t even know her name. Two investigators—one human, one vampire—find a young woman among a mass of dead bodies. She has no memories, and nothing but her clothes, two receipts, and a mysterious dagger carved with the initials ‘SB’. As she seeks her identity, SB realizes she's unlike any other creature in the world, making her the most valuable person on the planet. And the most wanted. WARNING: Language, violence, and graphic sex.

Retribution. At any cost. Now that she knows her name and what she is, she wants justice. Aided by werewolves from a local clan, she intends to uncover evidence that will convict the Senator of more than thirty murders. But finding the necessary proof is more difficult than she anticipates, especially when there is a bounty for her head. Adding to her troubles, the vampire who stole her memories shows up and reveals unexpected truths. Still, she refuses to quit until she achieves her goal. A sadistic assassin, a servant of Lucifer, nor her ex-lover, the vampire God of the Underworld will stop her from claiming retribution…even if the price is her life.