As the only female Seminus demon ever born, master assassin Sinead Donnelly is used to being treated like an outcast. She spent decades enslaved and now vows she'll die before she relinquishes her freedom again. Then Sin's innate ability to kill her enemies manifests in a new way: she creates a lethal werewolf virus that sparks a firestorm of panic and violence.
Half-werewolf, half-vampire Conall Dearghul is charged with bringing Sin in to face punishment for the plague. He's bound to her by blood, and the one sexual encounter they shared has left him hungering for her raw sensuality. Worse, Sin is the underworld's most wanted, and Conall soon learns he's the only one who can help her — and that saving her life might mean sacrificing his own.
Her touch is deadly. His hunger can't be denied.