Audiobook Review: Wolf Worm by T. Kingfisher

I received a review copy from the publisher. This does not affect the contents of my review and all opinions are my own.

Wolf Worm by T. Kingfisher

Mogsy’s Rating (Overall): 4.5 of 5 stars

Genre: Horror

Series: Stand Alone

Publisher: Macmillan Audio (March 24, 2026)

Length: 9 hrs and 14 mins

Author Information: Website

Narrator: Mary Robinette Kowal

T. Kingfisher is at it again, and this is exactly what I’m talking about! I am all in on the creepy setting, the brave and quietly capable heroine, and a horror premise that makes me squirm in grossed out discomfort. The author just has this unmatched talent for taking esoteric subjects or slightly odd interests and spinning them into highly engaging stories that keep me up at night, and listening to this one in audio was even more immersive.

Set at the tail end of the 19th century, the story follows Sonia Wilson, a struggling artist whose career prospects have dried up after a string of personal and professional setbacks. After the death of her father, she decides to leave her dead-end teaching job to return to her first love: scientific illustration. However, the only job she’s able to land is with a surly, reclusive entomologist named Dr. Halder, who needs a new illustrator to finish a book based on his research after his previous artist departed under unknown circumstances. This is how Sonia finds herself at his sprawling rural estate deep in the North Carolinian woods, where the only other residents besides the doctor are his housekeeper, groundskeeper, and a young maid.

It doesn’t take long for Sonia to sense that something isn’t quite right about her new situation. The discovery of an old sketchbook in her quarters reveals that Dr. Halder’s former artist was none other than his own wife, who vanished mysteriously about a year earlier. No one will speak openly about what happened, and the same reticence surrounds the local rumors of “blood thieves” who were said to have terrorized the townsfolk at the time. Sonia tries to keep her head down and focus on her work, even as Halder’s assignments force her to illustrate increasingly unsettling specimens tied to his research. But the deeper she throws herself in the work, the harder it becomes to ignore the strange happenings around her. Is her imagination running wild after too many hours reading up on the grotesque details of parasitic insects and their invasive life cycles? Or is there something truly unnatural stirring in the forest?

What really sold me about Wolf Worm was Sonia. A scientific illustrator protagonist hit a very specific soft spot for me, as I was genuinely interested in pursuing that field myself once upon a time, back before the digital age kind of ruined my plans. Kingfisher captures the tactile, observational nature of the work so well, and also portrays Sonia as a true artist: the way she sketches out the faces of the people she meets for the first time in her head, or the way she matches the names of watercolor paints to the hues she sees in the environment around her. Fans of the author will also recognize Sonia as a classic Kingfisher lead. She’s practical, a little anxious, but also stubbornly competent. Her wry personality allows her to take things in stride, helpful when her job frequently brings her up close and personal with all kinds of creepy crawlies.

Speaking of which, the tone of the novel falls in horror-mystery territory, though the setting does a lot of heavy lifting with its isolation, and then of course, there are the insects! Flesh eating parasites, maggots, you name it. Lots of messy, wriggly, burrowing things! Intimate, horrifying details of how insects live, eat, and reproduce. It’s all here, described in an uncomfortable level of detail, and reading this in spring right when it’s warming up and real-world insects are starting to emerge, it felt even more effective. So, if you have a bug phobia, you have been warned.

Finally, there’s a supernatural thread woven through the mystery that I absolutely loved. I won’t spoil it, but Kingfisher plays with a very familiar gothic creature myth and it filters through a strangely scientific, biological lens. It’s one of those clever reveals that makes you stop and think, ooooh I like that. It’s familiar territory but tackled from a highly unexpected and unconventional angle, and I think it works well with the story’s themes of bodies, hosts, and hunger.

All told, this is easily one of the best books by T. Kingfisher, and now one of my personal favorites. Much praise also goes to Mary Robinette Kowal’s whose narration in the audiobook brought Sonia’s curious and lively personality to life, and made the people and environment feel real around her. Wolf Worm is a smart, character-first horror novel that will make you squirm, and readers who wouldn’t mind a bit of weird science with their Southern Gothic tales will get a cool bonus. In other words, It’s exactly my kind of book.