Kat Wynn has always known angels exist. When her sadistic ex-boyfriend Jared attacks her and leaves her for dead, she prays for help, hoping Heaven will hear her. Waking in the hospital hours later, she expects to see her mother's guardian angel, but he's nowhere to be found. Instead, a cop is at her bedside, promising to protect her. Kat finds herself drawn to the handsome officer, but isn't sure she can trust him to keep her safe. After all, her ex isn't human...Tobias felt Kat's pain before he heard her call, which has never happened to the guardian in all his three thousand years. He can't explain the pull he feels when he's around her, or how she managed to heal her own wounds with minimal help from him. Soon, his desire for her makes him worry he will fall from grace. If that happens, he won't be able to protect her. And he will not allow her ex to harm her again.But Jared isn't the only danger after Kat. Vowing to finish what another started decades earlier, a demon hunts for the blood of the Blessed One. With it, he can turn Earth into a new Hell, and strike a new attack on Heaven.Can Tobias keep Kat safe, and prevent the demon from destroying the world?