Sins of the Cities Books in Order

Sins of the Cities is KJ Charles leaning hard into the Victorian sensation novel, and having a very good time with it. These books are set in London in 1873, during one of the great fogs of the century, and everything about the series is built to suit that atmosphere. Secrets crawl out slowly. Respectability looks thin and brittle. Murder, inheritance trouble, queer nightlife, journalism, music halls, and private investigation all crowd together in the same murky streets.

The three books each focus on a different couple, but the suspense plot runs through the whole trilogy. In An Unseen Attraction, Clem Talleyfer, a quiet lodging-house keeper, and Rowley Green, the taxidermist he cares for, are pulled into murder almost against their will. An Unnatural Vice turns up the heat with journalist Nathaniel Roy and fraudulent medium Justin Lazarus, enemies who cannot stop circling each other even while danger closes in. An Unsuitable Heir brings the larger mystery to a head as private enquiry agent Mark Braglewicz finds Pen Starling, a trapeze artist who is also the last person in the world who wants the aristocratic fate waiting for him.

Fog everywhere.

What makes the series work so well is the mix of strong atmosphere and very distinct protagonists. Charles does not just give you Victorian wallpaper. She gives you lodging houses, club rooms, séance parlors, shabby offices, stage acts, and queer social spaces that feel specific and inhabited. The Jack and Knave, where many of the characters cross paths, helps tie the series together without making it feel small. Each romance has its own rhythm and emotional problem, but they all sit inside the same expanding mystery.

The books are also good on how identity and exposure work in this world. Some characters want quiet, some want justice, some are hustlers, some are performers, and many are carrying more than one self at once. That makes the love stories feel especially varied. Clem and Rowley are gentle and careful. Nathaniel and Justin are all sparks and bad decisions. Mark and Pen have to navigate desire, danger, and a future that looks like a trap.

You really do want to read this trilogy in order. The final book pays off threads that begin much earlier, and the cumulative effect is part of the fun. If you like historical mystery with melodrama, murder, queer found family, and a London so thick with fog it practically becomes a character, Sins of the Cities is a great fit.