The moment the demon King Thorne of the Third Realm set eyes on the mortal huntress, Sable, he knew she was his fated one. The fiery, dangerous female awakened hungers he had never experienced before, a dark craving and passion that has consumed him in their time apart. As the lunar cycle wanes, she enters his world again, and nothing will stand in the way of him claiming his forever with her - not the relentless assault from the Fifth Realm or the dark elf male determined to seduce her out of his grasp.

Intent on achieving the coveted position of commander at Archangel, Sable leads her small team into the dark underworld and the Third Realm, to a war where her allies are the very creatures she normally hunts - vampires, werewolves, and demons. Her eagerness to lead the deadly mission has everything to do with winning her promotion and nothing to do with the kingdom's brash, lethally seductive demon king - a king who stirred fierce desire and wildfire heat in her with just a look and an innocent touch when they first met and has been in her wicked dreams ever since.

As the gathering storm between rivals unleashes irresistible passion that flares white hot and the heat of the battle brings life-shattering realizations, can Sable place her duty before her heart? Or will she surrender to her deepest desires and be claimed by a demon king?