Bow Street Duchess Mystery Books in Order

After a friend dies mysteriously on her country estate, Duchess Audrey summons Bow Street officer Hugh Marsden. Her ability to read objects’ memories uncovers local secrets, drawing them toward a killer willing to strike again.

Audrey Sinclair’s sister is abducted during an apparent highway robbery, forcing Audrey to reunite with Hugh Marsden. A valuable missing ring complicates their investigation as another threatened victim brings danger closer to a country house party.

When her husband is accused of murdering an opera singer, Duchess Audrey Sinclair sets out to prove him innocent. Her unusual gift challenges Bow Street officer Hugh Marsden’s certainty, drawing them into a dangerous joint investigation.

Hugh Marsden becomes the chief suspect when his half-sister is murdered after asking him to locate someone. Audrey Sinclair risks clandestine meetings to help clear him, uncovering destructive secrets surrounding his birth and estranged family.

A blackmailer targets former asylum patients, threatening Audrey Sinclair’s carefully hidden past. When a body wearing her gown is recovered from the Thames, she and Hugh Marsden investigate a revenge scheme that endangers those around them.

A passenger’s murder aboard Audrey’s ship home from France leaves her accused and detained in Dover. Hugh Marsden helps investigate the victim’s work as a private inquiry agent, seeking whoever hired him to follow her.

Planning a future together, Audrey Sinclair and Hugh Marsden accept one more investigation when a magistrate’s niece disappears. Their search connects the missing woman to suspicious deaths fueling public alarm at the Vauxhall Pleasure Gardens.

Lady Cassandra Sinclair secretly runs a refuge for unmarried pregnant women. When Lord Grant Thornton threatens exposure unless she agrees to a false courtship, their mutual hostility complicates a bargain designed to satisfy his demanding family.

Expecting their first child, Hugh and Audrey Marsden investigate a woman’s murder that implicates Audrey’s former brother-in-law. Audrey believes his denial, but uncovering the victim’s secrets brings them dangerously close to a desperate killer.