Cassie Coburn Mystery Books in Order

Cassie Coburn and detective Violet Despuis investigate an explosion that killed an ambassador's children. Discovering that one victim was poisoned beforehand turns the case into a web of international intrigue, while MI5 tries to obstruct their inquiries.

After an accident ends her planned medical career, Cassie Coburn moves to London expecting a fresh start. Instead, she joins observant French detective Violet Despuis in investigating four poisonings, discovering a far stranger life than the sightseeing trip she imagined.

Violet Despuis suspects murder when police treat a woman's strangling in Soho as accidental. Cassie joins her effort to prove a crime occurred and identify the killer, but publicity, secrets and signs of surveillance suggest the investigators are also at risk.

The murder of a nurse at the Royal London Hospital leads Cassie and Violet toward stolen vials of Ebola virus. Finding the killer becomes a race to prevent an attack, with the investigators repeatedly struggling to catch up.

A body displayed in King's Cross Station creates intense public pressure, and the police ask Violet for help. Cassie discovers the investigation is becoming personal while facing a decision about medical school, with the killer threatening more than her plans.

Violet is hired to clear a man convicted of murder, sending Cassie into a ten-month-old case. A hidden computer file and difficult encryption reveal wider complications, while Cassie also helps investigate missing hospital supplies and postpones decisions about her future.

Cassie joins Violet to investigate a Mayfair murder, but their promising suspect has an airtight alibi. Meanwhile, Jake’s surprise and Cassie’s recurring nightmares complicate her life as she tries to help untangle the increasingly difficult case.

A publisher’s murder in Notting Hill becomes stranger when the evidence suggests he was killed twice. Cassie and Violet question a collection of writers, trying to distinguish imaginative stories from the lies surrounding their employer’s death.

The discovery of a body in the Thames gives Cassie Coburn and Violet another case to investigate. Before they can bring the killer to justice, the pair must first establish who the dead person was.

During London’s tennis season, a prominent politician’s murder brings Violet into a Metropolitan Police investigation. Cassie joins her, but unexpected complications make the case harder to solve than the two sleuths first anticipate it will be.

A woman’s death during a major robbery leads the police to call in Violet after their leads run out. Cassie helps investigate a widening threat while DCI Johnson’s disappearance leaves them with further unanswered questions.