Sarah Penner books in order

A forgotten history. A secret network of women. A legacy of poison and revenge. Welcome to The Lost Apothecary…

Hidden in the depths of eighteenth-century London, a secret apothecary shop caters to an unusual kind of clientele. Women across the city whisper of a mysterious figure named Nella who sells well-disguised poisons to use against the oppressive men in their lives. But the apothecary’s fate is jeopardized when her newest patron, a precocious twelve-year-old, makes a fatal mistake, sparking a string of consequences that echo through the centuries.

Meanwhile in present-day London, aspiring historian Caroline Parcewell spends her tenth wedding anniversary alone, running from her own demons. When she stumbles upon a clue to the unsolved apothecary murders that haunted London two hundred years ago, her life collides with the apothecary’s in a stunning twist of fate—and not everyone will survive.

Two daring women hunt for truth and justice in the perilous art of conjuring the dead.

1873. At an abandoned château on the outskirts of Paris, a dark séance is about to take place, led by acclaimed spiritualist Vaudeline D’Allaire. Known worldwide for her talent in conjuring the spirits of murder victims to ascertain the identities of the people who killed them, she is highly sought after by widows and investigators alike.

Lenna Wickes has come to Paris to find answers about her sister’s death, but to do so, she must embrace the unknown and overcome her own logic-driven bias against the occult. When Vaudeline is beckoned to England to solve a high-profile murder, Lenna accompanies her as an understudy. But as the women team up with the powerful men of London’s exclusive Séance Society to solve the mystery, they begin to suspect that they are not merely out to solve a crime, but perhaps entangled in one themselves…