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Demon World

Undying Mercenaries, Book 24

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Demon World

By: B.V. Larson
Narrated by: Mark Boyett
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Summary

When Earth's colonies go silent, Legion Varus drops onto Kepler-62 expecting a routine investigation. Instead, they find something far worse than death.

The colonists aren't dead—they're changed. A new kind of enemy has arrived in Province 921, microscopic invaders that transform humans into perfectly coordinated killing machines. These "Demon" parasites don't just control minds; they improve them, creating an army that works with terrifying efficiency.

As cities fall and soldiers turn against their own, Centurion James McGill discovers he's mysteriously immune to infection. But immunity comes with a price. To save humanity from becoming pawns of a new Galactic species, McGill must navigate a web of seduction, betrayal, and impossible choices.

Some invasions come with warships. Others come with a whisper, a touch, and a promise of something better. The question is: what happens when the enemy might be right?

Demon World is an action-packed entry in B.V. Larson's bestselling Undying Mercenaries series.

©2025 Iron Tower Press, Inc. (P)2025 Podium Audio Adventure Military Science Fiction Space Opera
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Hell World cover art
Hell World By: B.V. Larson
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The last couple of books were a bit weak but this one jumps right back to McGill at his one-part-genius best!

A return to form

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Loved this one. The previous few seemed to have changed a few personalities, but this one feels back on track.

Best one in a while

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One of my favourite audiobook series. I love James' character and the plot. Please keep making them, and don't change the narrator either!

Keep making them, I'll keep buying them

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This time around there are too many inconsistencies. Immune to infection, protected from infection, immune again and finally they didn’t want to infect you. Hoped we’d get a fresher story. Shame it was padded out

To many inconsistencies

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So, I almost quit this series a few books back. The reason was simple?: they had become very formulaic. As mentioned many times in reviews of these books, Larson appeared to be working from a template that he modifies slightly, thus able to push out so many books each year across several series'.

I am pleased to say that I liked Demon World rather better than many of the prior books in this long running series. Why? Well, despite there still being the modular elements that all these books have, the enemy was rather more interesting, and I feel the story deviated enough from the usual fare to make things a little more interesting.

What I do like about the character of McGill is how un-politically correct he is, which is refreshing. In our woke world of recent years, traditional male hero archetypes, despite their flaws, have been neutered to the point of irrelevance. yes, McGill is a lumbering idiot at times, but he's also an unwitting hero and very much a ladies man. The latter attribute now frowned upon by modern sensibilities, or at least in the cloistered enclaves of the Hollywood hills.

Suffice it to say, Demon World has brought me back to the series. I just hope Larson continues to expand on the world he has created, rather than continuing to pump out retreads of essentially the same story.

Better

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