Lucifer's Alpha Slave Novel

In a world where darkness reigns supreme, an infamous Alpha God known only as a forbidden legend makes a brutal wager with the most powerful woman alive. She is a ruthless Alpha Wolf Princess who has ruled all kingdoms with an iron fist, feared by even the strongest men, and has remained unmarried throughout her reign. When she loses their bet, the proud princess becomes his slave and mate—bound to a man who despises her very existence. Dark's terms are merciless: she will belong to him until death, subjected to his dominance in the most primal ways imaginable. He promises her no gentleness or passion, only wild, fierce, and animalistic encounters for the rest of her life. How did the most feared ruler fall so completely? And what fate awaits a princess who must now submit to the heartless embodiment of darkness itself? Warning: Contains explicit BDSM and mature erotic content.