Bitter Blood

Officer Paige Silver assumes that a serial rapist is the worst fate her small town of Oxbow could suffer, but then her rookie partner Brady appears on her doorstep with a taste for blood and a back covered in runes that have been carved into his flesh. Suddenly the mundane evil she thought she knew is nothing compared to the demonic forces that are gathering. Well, evil might have claimed Brady for their side, but Brady came to Paige.
Even without understanding his developing powers, he offers his loyalty to the woman he has admired and wanted for some time. The fact that they were partners at work kept them from ever acting on their mutual attraction, but now that Brady is no longer human, he is determined to earn a spot in Paige's bed and her life. And while ethics kept Paige from considering a relationship with Brady while he was alive, she's having more and more trouble keeping any sort of professional distance.
Her only fear is that the evil that changed Brady may lay claim to his soul, and if she gives him her heart, he may drag her with him right into hell.