The Devils Vow

When Marco Rossi demands her hand in marriage, Isabelle has no choice but to say yes. Her family is drowning in debt to the ruthless mafia patriarch, and their only lifeline is this alliance with his dangerous heir. With a gun to her father's head-figuratively, though the threat feels all too real-Isabelle signs away her freedom. She tells herself it's temporary, a sacrifice she'll endure until her family is safe.
She has no idea that the real danger is just beginning. Marco is everything she feared: cold, calculating, and utterly merciless. As the heir to one of the most feared organized crime empires in the country, he commands loyalty through fear and respect through bloodshed. He's known to destroy anyone who crosses him without hesitation, and his reputation for ruthlessness precedes him. When he looks at Isabelle, she sees a predator sizing up his prey.
She's certain he views her as nothing more than a pawn in his family's games-a bargaining chip with a pretty face. But behind closed doors, Isabelle discovers that Marco is far more complex than the monster she expected. In stolen moments between cruelty and dominance, she catches glimpses of a man haunted by his own darkness, bound by duty to a family business built on violence. His touch is possessive yet deliberate, his gaze intense in ways that make her heart race and her guard crumble.
The physical attraction between them is undeniable, a dangerous pull that neither can resist-yet giving in means risking her heart to someone incapable of tenderness. As weeks turn into months, Isabelle finds herself caught between two truths: Marco terrifies her, and Marco intoxicates her. He protects her fiercely, yet his methods are merciless. He demands her submission in ways that should repel her, yet she finds herself surrendering willingly.
Passion ignites in the shadows of his penthouse and in the dangerous spaces between his world and hers. She begins to question whether what's growing between them could ever be real, or if it's merely an illusion crafted by luxury, power, and proximity.