He was only supposed to be a secret fling. A forbidden kiss stolen in the dark . .

. Not the cold-blooded monster who betrayed me. Callahan Knight is the Diamond Syndicate's perfect weapon with honed muscles, lethal control, and merciless loyalty.

Even when taking out a rival cartel's capo-my uncle-he doesn't flinch. He shatters my family without hesitation, and I swear I'll never forgive him for that. But the Syndicate doesn't care about my hatred.

To secure their power, they demand more: A vow of marriage or watch everything we love get destroyed. Now I'm the unwilling bride living in the luxurious prison of Paradise Grove with the man I refuse to call my soon-to-be husband. Instead, he's the villain.

Enemy number one. My tormentor . .

. But also maybe my undoing. Because when he looks at me with the same fire we once shared, I can't decide if I want to kill him .

. . or kiss him.

Yet, I refuse to be distracted by his touch or piercing gaze. Instead, I'll play the part, wear the ring, and say my vows all while I dig for his greatest weakness. Because he may be the Syndicate's deadliest weapon - but I'm just as lethal as the monster I have to marry.