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Underground Planet

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Renegade female mercenaries and hired killers.

A treasure hidden for a thousand years.

But old secrets never die – and some treasures should remain hidden.

Inside a planet wide labyrinth of mining tunnels, metal processing, acid waste levels, and abandoned cities is a thriving, genetically engineered ecosystem of predators, prey, and mutant humans. Constantly evolving and always hungry.

It's a race against time as the teams fight to survive the planet and each other.

There are no prizes for coming second.

Get there first - or die.

311 pages, Kindle Edition

Published November 14, 2022

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6 people want to read

About the author

Cindy Tomamichel

23 books200 followers
Cindy Tomamichel is a multi-genre writer. Escape the everyday with time travel action adventure novels, scifi and fantasy stories or tranquil scenes for relaxation.
Find a world where the heroines don’t wait to be rescued, and the heroes earn that title the hard way.
The Druid’s Portal series is a genre blend of action, adventure, romance, time travel and magical historical fantasy. Set in Roman Britain.
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Displaying 1 - 3 of 3 reviews
Profile Image for Terry.
472 reviews116 followers
May 19, 2024
I read this book as a judge on the Wayward Stars team in the SPSFC3 (third annual, self-published science-fiction competition), in the quarterfinals round within our group. This is my own personal review and does not represent the views of the team or any other individuals other than myself.

I think this was one I just didn't connect with as much. It wasn't a bad book by any means, but I just wasn't ever enthralled. Characters were interesting, and the world it takes place in is pretty interesting as well.
Profile Image for Kate Sibson.
150 reviews13 followers
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January 1, 2024
Disclaimer: I read this as a judge for SPSFC#3, as part of the Wayward Stars team. However, the following is my own personal review and does not reflection on the team's score.

I'm trying not to play favourites here but out of our batch for SPSFC#3, this was my favourite. I loved it and had an excellent time reading it. There were some really cool ideas here and I thought they were explored well. I loved the idea of genetic manipulation to suit the environment and it was used to great effect.

The main characters were well realised and believable, from the all-female band of mercenaries to the genetically modified muscle-bound pacifists. Even the over-the-top bad guy didn't feel that unrealistic. Ok, some of the characters were maybe a little stereotypical and could have done with a bit more depth but on a whole, the characters drew me in.

Considering that most of the action took place underground on one planet, the worldbuilding was outstanding. I think the author's experience in mining shone through here. Plenty to see and vicious killer creatures to meet. The worldbuilding also helped to develop quite the considerable atmosphere. It was mean, dark and dirty, as you would expect on a mining planet, and it got more claustrophobic the deeper we went. Some great descriptive work going on here.

I did love it but I'm not blind to the fact that not everything was outstanding. The twist was fairly easy to see coming (and if I'm saying that, then it was particularly shouted from the beginning). I also wasn't a fan of the romance between two of the main characters. I felt that it was a bit forced and only included to fit the plot. Romance for romance sake. Both were not major problems for me but others are going to disagree.

I had a lovely time with this book and I think everyone should read it.
Profile Image for Willow Webster.
484 reviews21 followers
June 6, 2025
Great book awesome characters well written. What more can you ask for? 5 stars!
Displaying 1 - 3 of 3 reviews

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