Cadence "Cady" Bloomquist knows two things for sure: First, shelving books at her shop, Nevermore Bookstore, totally counts as cardio. Second, staying late every Thursday night to take a certain mysterious customer's order is not the same as waiting by the phone for some man. Until the calls with the man who identifies himself only as "Fox" last for hours, and become the highlight of her week. Which leaves her to wonder, if his velvet voice can kindle her fire over the phone, what sort of alchemy might it inspire if they met in person?

England, 1865: Newspaper columnist Lady Katherine Bascomb finds herself the subject of speculation when her latest article leads to an arrest in the murders plaguing London. The English believe women ought not to write about such vulgar things as crime, and a particularly attractive detective inspector is incensed that she's interfered with his investigation. To escape her sudden notoriety, Katherine heads to the country - only to witness a murder upon her arrival.

Cordelia James was once at the top of her game—a renowned street photographer with a massive social media following, gallery showings in Chelsea, and a lucrative book deal. But after the sudden death of her father, Cordelia can barely force herself to leave her apartment—that is, until she sees an ad for a summer gig at a cozy cottage on Ireland’s picturesque Inishmore island.

Cecilia Bassingwaite is the ideal Victorian lady. She's also a thief. Like the other members of the Wisteria Society crime sorority, she flies around England drinking tea, blackmailing friends, and acquiring treasure by interesting means. Sure, she has a dark and traumatic past and an overbearing aunt, but all things considered, it's a pleasant existence. Until the men show up.

Dellaria Wells, petty con artist, occasional thief, and partly educated fire witch, is behind on her rent - again. Then she sees a “wanted” sign seeking Female Persons, of Martial or Magical ability, to guard a Lady of some Importance. Delly fast-talks her way into the job and joins a team of highly peculiar women tasked with protecting their wealthy charge from unknown assassins. Delly quickly sets her sights on one of her companions, the confident and well-bred Winn Cynallum. The job looks like nothing but romance and easy money until things take a deadly (and undead) turn.