Sullivan and Broderick Murder Investigations Books in Order

The Sullivan and Broderick Murder Investigations books are police mysteries set in Gibraltar, where bright sea light sits alongside old grudges, buried secrets, and a strong sense that the past is never far away. The series starts with The Rock and introduces DS Tamara Sullivan, a London detective sent on secondment to the Royal Gibraltar Police after a failure of judgment in her last job. She expects a punishment posting. Instead, she walks straight into murder.

And Gibraltar turns out to be anything but quiet.

Sullivan is the outsider here, sharp, capable, and not in the mood to charm anybody. Her new boss, DCI Gus Broderick, knows the territory inside out and is not instantly convinced that a Met detective with recent baggage is what his team needs. That friction gives the series its backbone. As the books go on, one of the real pleasures is watching professional mistrust slowly turn into respect. They are very different detectives, which is exactly why the pairing works.

Broderick brings more than rank. He is tied to Gibraltar in a way Sullivan is not, which means the cases can hit his personal and professional life from angles she does not always see coming. That gives the books a nice balance. Sullivan asks hard questions because she is not from there. Broderick understands the local currents, family networks, and the things people say without saying.

The setting matters a lot. Gibraltar is small, crowded, politically unusual, and packed with history. British policing sits beside Spanish geography. Old military sites, tunnels, colonial buildings, narrow streets, and the constant sense of borders and crossings all feed the mood of the books. Daws does not use Gibraltar as pretty scenery. He uses it as part of the machinery of the story.

That becomes even clearer in Poisoned Rock and The Killing Rock, where present-day investigations keep colliding with older crimes and wartime secrets. Espionage, hidden loyalties, family history, and long-buried violence all have a way of resurfacing. These are not mysteries built only around a single corpse and a list of suspects. They are also about what a place remembers, and what people would rather leave untouched.

The overall tone sits somewhere between a classic detective story and a modern police procedural. There is danger and tension, but the books lean more on investigation, character, and atmosphere than on gore. If you like detective duos, strong settings, and crimes that echo across decades, this series has a lot to offer. Start with The Rock if you want to see Sullivan and Broderick meet, clash, and begin to figure each other out.