Fierce Obsession

Fierce Obsession is the fourth book in Sadie Kincaid’s L.A. Ruthless series, and it continues the Lucia Montoya and Jackson Decker storyline introduced in Fierce Betrayal. By this point, their relationship is no longer just forbidden or precarious. It is something they are trying to hold onto while old enemies return and the wider Montoya world pushes back against any hope of peace. The setup is built around the fear that happiness never stays unchallenged for people tied to power, violence, and family loyalty.

Readers can expect a dark mafia romance with a more entrenched, emotionally volatile tone than a first-book setup. The story leans into trust, obsession, family pressure, and the sense that love can become most dangerous when there is finally something real to lose. Because it follows directly from the previous Lucia and Jackson book, it works best read after Fierce Betrayal rather than as a true standalone.

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