Bloodbound Vows by Violet Mercy

Length: 17,300

Isabella Rossi has known since youth that her life would be shaped by alliances and duty. Promised in marriage to a rival family's son to secure peace between empires, her world fractures when her fiancé is assassinated in a brutal hit. Suddenly thrust into union with his older brother, Luca Moretti, the brooding and powerful don whose name commands both fear and respect, Isabella finds herself bound by ancient codes of blood and loyalty.

What begins as a cold, power-driven arrangement slowly kindles into an all-consuming obsession. Isabella's fiery intelligence and defiant spirit clash with Luca's unyielding dominance, creating sparks that ignite hidden depths of desire and vulnerability. As external enemies and internal betrayals close in from every side, the pair must navigate a treacherous landscape where trust is a luxury and passion a weakness that could destroy them both.

Amid simmering tension and emotional conflict, Isabella discovers strength in unexpected surrender while Luca confronts the limits of his guarded heart. Their bloodbound vows become both their greatest peril and their only salvation in a world where love and danger are irrevocably intertwined. A gripping tale of arranged fate, dark attraction, and the transformative power of obsession.