The Kindred — L.L. Foster

When Gabrielle Cody became a paladin -- God's enforcer on earth, duty-bound to fight the battle against evil -- she knew there would be sacrifices. But lately, she's not sure she can endure the life of a holy warrior. Her relationship with Detective Luther Cross is under constant strain -- even though his devotion to her is beyond measure. And it's going to get worse.

For there is a psychopath stalking the streets, feeding off of human blood, flesh, and souls. He has gathered minions to do his bidding, and grows stronger with every victim he claims. Gaby must stop him before he slaughters another innocent. But her passion for Luther distracts her from the terrible connection she has with her quarry -- and his own desire to devour Gaby...