Broken Vow: A Dark Mafia Enemies to Lovers Romance (The Blood Vow Syndicate)

A blood vow bound her to the monster who ruined her family. But the true danger isn't her lethal new husband—it's the fact that she's falling for him.

Liora Thorne is a master cryptographer and the orphaned daughter of the Chicago Outfit’s most brilliant architect. When her father is murdered, she is dragged into the pristine, terrifying world of The Glasshouse and forced into a brutal arranged marriage with Cassian Vane—the untouchable Don of the Outfit, and the man she believes pulled the trigger.

Her plan is simple: find her father's encrypted Black Ledger, tear Cassian’s empire apart from the inside, and buy her freedom.

But Cassian is a king surrounded by vipers, completely unaware that his own Underboss is orchestrating a deadly coup. As Liora navigates the lethal, glass-walled halls of her new cage, the lines between captor and captive begin to blur. Cassian is a ruthless executioner, yet he is a monster willing to take a bullet and burn the city to the ground to keep her safe.

When the ultimate betrayal comes to light, Liora holds the keys to the entire syndicate in her hands. With the Commission turning against them and assassins closing in, she must make an impossible choice: use the ledger to claim her freedom and walk away, or stand beside the executioner who has stolen her heart and claim her bloody crown.

Broken Vow is a dark, high-stakes mafia romance featuring forced proximity, an enemies-to-lovers slow burn, and a fiercely intelligent heroine who meets her match in a morally gray king.