There are 7 books in the Bow Street Duchess Mystery Series series. The newest book is Taken to the Grave which came out in 2024.

1
Murder at the Seven Dials

Book cover of Murder at the Seven Dials: A Bow Street Duchess Mystery
A murdered opera singer. A duke drenched in her blood. For Bow Street Officer Hugh Marsden, the brutal killing is a straightforward case. Ever since his exile from polite society, the chance to arrest a high and mighty peer of the realm has never presented itself. Hugh won’t snub the…
When you buy books, we may earn a commission that helps keep our lights on (or join the rebellion as a member).

2
Death at Fournier Downs

Book cover of Death at Fournier Downs: A Bow Street Duchess Mystery
After a murder scandal nearly sent her husband to the gallows, Audrey, the Duchess of Fournier, has retreated to the countryside to distance herself from gossip—and from the Bow Street officer who proved as irritating as he was intriguing.

But when Audrey’s friend Charlotte, the Countess of Bainbury, dies mysteriously…

3
Silence of Deceit

Book cover of Silence of Deceit: A Bow Street Duchess Mystery
Secrets and lies simmer to the surface in the third riveting Bow Street Duchess mystery.

For years, the Duchess of Fournier has buried a shameful secret connected to her remarkable, if bizarre, ability. While Audrey’s gift has helped her solve cases alongside the captivating Bow Street officer Hugh Marsden, she…

4
Penance for the Dead

Book cover of Penance for the Dead: A Romantic Regency Historical Mystery
Old scandals and destructive truths are exposed when a woman from Hugh Marsden’s past is murdered in cold blood.

Principal Bow Street Officer Hugh Marsden is used to living in the shadow of disgrace. First, as the illegitimate son of the late Viscount Neatham, and second, as the man who…

5
Fatal by Design

Book cover of Fatal by Design: A Bow Street Duchess Mystery (A Romantic Regency Historical Mystery)
A summer house party in the countryside takes a deadly turn after the abduction of a viscountess.

After the shocking events of the spring, Audrey Sinclair and Hugh Marsden are adjusting to their new lives when an apparent highway robbery ends in the violent abduction of Audrey’s sister.

As callous…

6
Nature of the Crime

Book cover of Nature of the Crime: A Bow Street Duchess Mystery
The Bow Street Duchess Mystery series continues in January 2024 with the sixth Audrey Sinclair and Hugh Marsden investigation...

When a fellow passenger is found dead on Audrey’s packet ship from France, a mysterious note on the body points to her as the killer. Detained in Dover for an inquest…

7
Taken to the Grave

By Cara Devlin , Allie Rose (narrator),

Book cover of Taken to the Grave
The Bow Street Duchess Mystery series comes to a thrilling conclusion in the seventh and final book, Taken to the Grave.

As Audrey Sinclair reaches the end of her mourning period, she and Hugh Marsden, the Viscount Neatham, are at long last looking toward their future together--and hoping for a…