The Costa Family Books in Order

The Costa Family series is Brittney Sahin’s connected run of romantic suspense built around one complicated family and the people who get pulled into their orbit. The heroes don’t all look the same on the surface, a chef starting over, a billionaire playboy, a former clandestine operative, but they share the same instincts: protect what’s theirs, fix what’s broken, and keep outsiders from seeing how much blood and history sits underneath the polished exterior.

The Costas love hard. They also keep secrets.

The series begins with Let Me Love You, where Maria Romano runs her life and her responsibilities like a grown-up, until a long-ago kiss comes back in the form of Enzo Costa, now the head chef at her sister’s restaurant. Enzo has a past that won’t let him relax into happiness, and Maria has good reasons to be cautious. When danger follows her, their second-chance romance turns into a test of whether Enzo can protect without destroying what he’s trying to build.

Not Mine to Keep raises the stakes with a different kind of threat. Alessandro Costa is a billionaire with a reputation, and Calliope is tied to a world where violence is a language, not a last resort. Vengeance, betrayal, and the shadow of powerful men force them into choices that can’t be undone, and the romance burns right alongside the risk.

The middle of the series turns more mystery-forward. The Art of You pairs Hudson, a protective hero who thinks he knows how to control a situation, with Bella, his best friend’s fearless sister. Forced into close quarters, they have to deal with their shared history while a dangerous mystery tightens around them. The tone is still high heat, but the tension comes as much from unanswered questions as it does from chemistry.

The Best of Us brings the focus back to family and duty, following Constantine Costa, the eldest brother and a former operative who’s spent years taking care of everyone else. When Juliette reenters his life and a secret from the past surfaces, Constantine has to decide what he’s willing to risk for something that feels like it could finally fill the empty space he’s been ignoring.

Each book delivers a complete couple’s story, but reading in order pays off because the family dynamics and the broader danger keep evolving. If you like romantic suspense with a strong family backbone, slow-burn loyalty, and threats that don’t stay politely offstage, the Costa Family books are built for you.