Detective Shona Oliver Books in Order

The Detective Shona Oliver series follows DI Shona Oliver, a police officer working on Scotland's side of the Solway Firth. It is a coastal borderland where the sea, weather, and tide are never just background. A body can turn up on either side of the water, and a case can quickly pull in more than one force, more than one town, and more than one version of the truth.

Shona is not only a detective. She also volunteers with the lifeboat service, which puts her close to the risks of the Firth and the people who depend on it for work. At home, she is raising her teenage daughter, Becca, and dealing with the complications of family life. Her professional and personal worlds often overlap, especially in a small community where everyone seems to know someone connected to the case.

The series begins with In Dark Water, when Shona is drawn into an investigation after a woman's body is found in the Solway Firth. Dead Man Deep takes her to Kilcatrin Island after a Mayday call reveals a burned fisherman, his badly injured son, and a shoreline scattered with old incendiary bombs. The cases are rooted in the practical concerns of the region, including fishing, tourism, local businesses, and the dangers left behind by history.

The crimes grow more complicated from there. In The Girls in the Glen, an archaeological dig on the Dumfriesshire moors uncovers a body linked to a notorious old case. The Gathering Storm brings a film crew and a famous actor to an isolated island, while A Troubled Tide asks Shona to investigate the suspicious death of a fellow officer during a triathlon. Each novel has its own central mystery, but the consequences of earlier cases keep echoing through Shona's work and home life.

This is a series about policing close to home.

McEwan keeps the tone firmly in police-procedural territory, with evidence, interviews, searches, and competing leads, but the books also make room for the lives around the investigation. Shona has to earn trust, manage a busy team, and decide how much of herself she can bring to a case without losing perspective. The Scottish coast adds tension of its own, with rough water, remote places, and sudden changes in weather.

The books work as individual mysteries, but reading them in order gives the strongest sense of Shona's changing relationships and the longer threads running through the series. Start with In Dark Water, then continue through the cases as Shona faces new crimes in a place where the past has a habit of resurfacing.