In 18th-century London, a secret apothecary shop run by Nella sells poisons to women to use against oppressive men, but her life is jeopardized when a young girl makes a mistake. In present-day London, an aspiring historian named Caroline discovers an old apothecary vial while mudlarking, which connects her to the unsolved crimes of the past.
Includes bookplate signed by author as well as author's note insert card. Minor sticker residue on back of dust jacket.