Her Unwilling Heart My father owed a debt. Not to a man, but to a powerful, secret society that claims its dues in unconventional ways. Now, I am their payment. I’ve been sent to live at the formidable high-rise of Rex Valentino—the Society’s unyielding figurehead. I am merely a pawn, a woman placed in the heart of his dark, opulent world. Yet, living under his watchful eye, the gorgeous man who controls this world is proving far more compelling, and dangerously captivating, than I ever anticipated. His Ruthless Heart She is my payment. A pawn to be used and forgotten. But the quiet beauty sent to live in my fortress refuses to be tamed, and her fire captivates me. I find myself mesmerized by her defiance, by the fire in her eyes that refuses to be extinguished. She came here to honor her family’s obligation, but I’ve already decided I won’t let her leave. She will be mine, whether she wants it or not. The Ruthless Billionaire Society Reading Order: Book 1: King of Beasts Book 2: Queen of Beasts (Rex and Caterina’s Duet) Book 3: Big Bad Wolf Book 4: Big Bad Red Duet (Santino and Luce’s Duet) Book 5: Wings of Ruin Book 6: Wings of Silence (Enzo and Aurora’s Duet) Book 7: Wicked Seduction Book 8: Wicked Temptation (Luca and Donata’s Duet)