Demon World Book Cover

Demon World


A Science Fiction Novel


Book 24 of the Undying Mercenaries Series


Subgenres & Tropes:

  • Military Science Fiction,
  • Alien Invasion,
  • Mind Control
Buy from Amazon

This book is for you if you're into...

  • Alien parasites that upgrade their human hosts into super soldiers
  • Military sci-fi where immunity to infection changes everything
  • Moral dilemmas about surrendering humanity for something more
Publisher Description

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?

More B. V. Larson

Follow This Author

Sign up & we'll email you when a new title is available for pre-order or hits the bookshelf

Little Stacks of Science Fiction

Get Free & Discounted eBooks

Curated reads, irresistible prices—subscribe now

Add this book to your To Be Read list

Sign up to build your personal library

Archive This Book

Sign up to build your personal library