Of Monsters and Mainframes

By Barbara Truelove

Los Angeles Times Bestseller, Libro.fm Bestseller, Indie Top 40 Bestseller, Goodreads Choice Award Finalist, Indie Next Pick


A BEST BOOK OF THE YEAR: Elle Magazine, Book Riot, LA Public Library, Spotify, Waterstone's, Powell's, AudioFile Magazine


"Fans of Murderbot will love this quirky sci-fi romp." --USA Today


Spaceships aren't programmed to seek revenge--but for Dracula, Demeter will make an exception.

Demeter just wants to do her job: shuttling humans between Earth and Alpha Centauri. Unfortunately, her passengers keep dying--and not from equipment failures, as her AI medical system, Steward, would have her believe. These are paranormal murders, and they began when one nasty, ancient vampire decided to board Demeter and kill all her humans.

To keep from getting decommissioned, Demeter must join forces with her own team of monsters: A werewolf. An engineer built from the dead. A pharaoh with otherworldly powers. A vampire with a grudge. A fleet of cheerful spider drones. Together, this motley crew will face down the ultimate evil--Dracula.

The queer love child of pulp horror and ​classic ​sci-fi, Of Monsters and ​Mainframes ​is a dazzling, heartfelt odyssey that probes what it means to be one of society's monsters--and explores the many types of friendship that make us human.

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Published Jun 3, 2025

424 pages

Average rating: 7.14

80 RATINGS

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Community Reviews

IdleExpatter
IdleExpatter
8/10 stars
What a charming little book. I have some quibbles, but you know what? Sometimes the quibbles don't matter. This is a book about spaceships and monsters, written with such verve and brio that I don't care about the quibbles. The characters are fun, the story is fun, the premise is a hoot. This book is just a really good time, and I love it for that.
Evan
Evan
8/10 stars
Really loved most of this. The author developed interesting narrative voices for the two main AI characters, Demeter and Steward, and having the bulk of the story told from their perspectives was great.

I think the third act is unfortunately where the story lagged a bit for me. The human(ish) characters were simply not as interesting as Demeter and Steward, and the story suffered because they narrated much more in the third act. Additionally, for most of the story, everything took place on Demeter’s ship, but the action shifted off the ship for a lot of the ending, which weakened the story in my opinion.

Ultimately, the book was still fantastic, but just didn’t fully stick the landing for me.
D
DANTAR
9/10 stars
What's not to love about Dracula in space with werewolves and Frankenstein (amongst so many more classic ghouls and monsters)! The anxiety the spaceship communicates coupled with the absolute snobbery of the Med-unit is both hilarious and relatable. It's a rollicking feel-good adventure.
Chellemorgan
Chellemorgan
9/10 stars
This was so cute!!

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