Agni's obsession will either claim his heart or bring him more pain than any other event in his existence.

Since first learning his mate is the third Sister of the Moon, Agni Fe Tarra, Prince of the Fire Demon Realm, has stayed as far away from the young girl as the mortal world would allow. But when she ventures to the Fay Realm and returns a full grown—and fully developed—woman secure in her Wiccan powers as well as in her Fay abilities, can he still stay away even if that's the only way to keep her safe?

Blood Moon, once called Bethany by her family and friends, knows with Agni's first kiss, he's hers—but the demon's first words to her don't seem to match up. Is she to listen to what he says and leave him forever—or stay with him until she can claim his heart?