The Works of Vermin by Hiron Ennes is a 432 page standalone novel published by Tor Books in 2025.

Genre:

Fantasy

Blurb

He was sent to kill a pest. Instead, he found a monster.

Enter the decadent, deadly city of Tiliard, a metropolis carved into the stump of an ancient tree. In its canopy, the pampered elite warp minds with toxic perfume; in its roots, gangs of exterminators hunt a colossal worm with an appetite for beauty.

In this complex, chaotic city, Guy Moulène has a simple goal: keep his sister out of debt. For her sake, he’ll take on any job, no matter how vile.

As an exterminator, Guy hunts the uncanny creatures that crawl up from the river. These vermin are all strange, and often dangerous. His latest quarry is different: a centipede the size of a dragon with a deadly venom and a ravenous taste for artwork. As it digests Tiliard from the sewers to the opera houses, its toxin reshapes the future of the city. No sane person would hunt it, if they had the choice.

Guy doesn’t have a choice.

Opening Line

Tiliard, known as the Deathbed of Tulips, straddles the river gorge like a half-submerged stump.

My Thoughts

The past is only ever populated by strangers, Guy had told her once, referencing some pompous corpse or another.

Holy moly, this book! A great story that was a taxing process to tunnel my way through.

This author’s previous novel, Leech, is an absolute favorite of mine. There are things I really like about this one here, but boy were there challenges, too. Mostly I just had a very difficult time picturing the things the author describes (e.g. do they live in the roots or on the roots, and if the stump is half-submerged then aren’t the roots underwater?) Primarily it was the setting itself that I struggled to get a handle on, but the details of the toxins and perfumes and everything were just a lot. Many times I found myself rereading lines to make sure I was actually understanding what they were trying to say.

Somewhere around two-thirds into the book I had a major “Aha!” moment, but I hesitate to call this a twist or a big reveal because I honestly can’t say for sure if it was something that was already supposed to have been clear and I just failed to pick up on it.

BUT, all that being said, it’s a fantastic (if extremely complex) world the author has built here, and the story was very good. The characters were pretty wonderful (the undercity exterminator willing to do anything to keep his little sister from a life of working off debt, the perfumer who makes the perception-altering and subtly mind-controlling scents worn by the Grand Marshal Revenant, all those contaminated by the toxin used to literally reshape the city and its people during the last coup–all splendid!) I would call this grimdark fantasy and not horror, although there are most definitely body horror elements. There’s LGBTQIA+ representation, and some truly great lines amidst the pulchritudinous prose.

He is the best Grand Marshal the city has ever seen. He is exactly as a Grand Marshal should be: dashing, competent, tough, ruthless or bloodless depending on necessity. He expresses the tenets of Revivalism in the sculpture of his own body, in his elegant and irresistible strategies. Bullets seem to pass right by him. Poison seems not to sicken him. He is so successful, so well-suited for life, that when in his fifth year of office he writes a solemn note and ingests enough tranquilizer to kill a team of horses, he only wakes up the next morning slightly better rested than usual.

My overall experience with this book was definitely a good one, but my troubles wrapping my head around the particulars drops it to 4.25 stars for me.