Cincinnati Books in Order

The Cincinnati series shifts Karen Rose's focus to southern Ohio and the river towns and suburbs that surround it. Here, FBI agents and local detectives team up with psychologists, journalists and advocates to tackle crimes that often span state lines and decades.

The arc begins with Closer Than You Think, where psychologist Faith Corcoran flees a stalker and retreats to her inherited family home, only to find that a serial killer has been using the surrounding tunnels as a hunting ground. FBI Special Agent Deacon Novak arrives sleuthing the disappearance of college students and quickly realises Faith's past and his current case are knotted together.

In Alone in the Dark, former Army Ranger and investigative journalist Marcus O'Bannion is attacked while trying to help a terrified teenager, drawing homicide detective Scarlett Bishop into a case that exposes a human trafficking network. The book digs into the moral lines people cross when official systems fail, and into what it costs to keep fighting anyway.

Every Dark Corner puts Special Agents Griffin Decker Davenport and Kate Coppola at center stage as they chase the hidden partner of an arrested trafficker. Their main witness is Mallory Martin, a young woman forced into child pornography and still under the control of the man who raised her. The investigation pushes Decker and Kate to work through their own trauma while they try to free children who have almost no reason to trust law enforcement.

In Edge of Darkness, homicide detective Adam Kimble and child psychologist Meredith Fallon face a killer who is targeting women connected to Meredith's counseling work with abuse survivors. Adam's struggle with untreated PTSD and alcoholism gives the book a raw, honest look at mental health in the middle of relentless police work.

The series closes, at least for now, with Into the Dark, which brings together many of the Cincinnati cast to protect a deaf teenager and his little brother after a shooting exposes yet another trafficking scheme. Reporter and coach Diesel Kennedy and doctor Dani Novak finally stop circling each other and confront both a determined killer and Dani's fear of trusting someone with her own medical history.

Across these novels, Cincinnati feels like a crossroads for Rose's world, with characters from Baltimore and Minneapolis dropping by and past cases echoing in new ways. The themes are heavy, especially around exploitation and child abuse, but the books balance that with strong friendships, found family and romances built on people seeing each other's worst memories and choosing to stay.