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Sigma

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We knew the cockroaches would inherit the Earth. We just didn’t think they’d take over our next planet, too.

The Earth is gone, and its survivors are in desperate need of a new home. Trapped on board Arks orbiting New Terra, the UEC fleet orders a full invasion. The planet is theirs if they want it… they just need to clear out the massive bug infestation first.

Ginger and her squadmates in Fireteam Sigma are no strangers to alien worlds – this isn’t the first planet they’ve tried to colonise. But they’ve never gone up against an enemy like this before: hungry, seven foot roaches capable of biting a marine in two. It’s going to take everything Sigma’s got – and more – to survive.

Can Fireteam Sigma liberate the first New Terran city? Or has humanity simply delayed its own extinction?

SIGMA is the first book in the War for New Terra trilogy. If you enjoy tongue-in-cheek action, splashes of gore and skin-of-their-teeth escapes, you’ll love this blockbuster spin-off from the acclaimed Final Dawn series.

216 pages, Kindle Edition

Published July 6, 2021

18 people are currently reading
13 people want to read

About the author

T.W.M. Ashford

48 books41 followers

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5 stars
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Displaying 1 - 9 of 9 reviews
Profile Image for Claire.
Author 32 books237 followers
August 18, 2021
I read this in one sitting, glued to my phone. Fast paced, fraught with danger, characters you care about and not just because I've read previous books in this sci-fi world. Definitely reminded me of Starship Troopers (the film, although I have read and enjoyed the book as well lol) and there was distinct satisfaction at killibg the roaches. More please.
Profile Image for Sue Wallace .
7,401 reviews140 followers
September 6, 2021
Sigma by T.W.M. Ashford.
War for the new terra book 1.
We knew the cockroaches would inherit the Earth. We just didn’t think they’d take over our next planet, too.
The Earth is gone, and its survivors are in desperate need of a new home. Trapped on board Arks orbiting New Terra, the UEC fleet orders a full invasion. The planet is theirs if they want it… they just need to clear out the massive bug infestation first.
Ginger and her squadmates in Fireteam Sigma are no strangers to alien worlds – this isn’t the first planet they’ve tried to colonise. But they’ve never gone up against an enemy like this before: hungry, seven foot roaches capable of biting a marine in two. It’s going to take everything Sigma’s got – and more – to survive.
Can Fireteam Sigma liberate the first New Terran city? Or has humanity simply delayed its own extinction?
I really enjoyed this book. Great story and characters like Ghost Ginger Bradley Duke and Elizabeth. There was more characters but I'm sure I will get to know them as the series grows. Looking forward to the next book. 5*.
Profile Image for Jordan Bird.
35 reviews1 follower
March 24, 2025
Another great read by Ashford!

Sigma, a spin off from The Final Dawn series and the first book in the War for New Terra series sees a team fight their way through the wilderness of an infested planet with one goal in mind, to make it their new home.

As usual for an Ashford book, the characters are well realised, believable and investable without relying on the books of The Final Dawn series.

You could easily read Sigma as a standalone book; it reinforces The Final Dawn series as opposed to relies on it, which could have been an easy trap to fall into.

I'm making my way through the Dark Star Panorama universe in release order so I'll be taking a short break from the War for New Terra but I'm already excited to dive back in and see where the series ends up.

If you've been reading The Final Dawn series or are looking for a sci-fi action/suspense romp then give Sigma a try!
Profile Image for Beccy Thompson.
810 reviews17 followers
August 8, 2021
I love the first book in a new series, that moment when you know you’re right at the start of something special, some new potential it creates a feeling of joy and excitement. This book had that feeling in abundance - ok not fully on board with the cockroaches (who would be) but let’s be honest they’ll outlive humans.
A great read
Profile Image for vandy.
45 reviews
July 7, 2025
This was a fast-paced, broad-strokes sci-fi action read with killer 'bugs', inoffensive characters, and a comfortable awareness that it wasn't pushing any boundaries. Read kind of like a videogame cutscene. Not mad. Good palette cleanser. All three novels are included in the version I have, so will probably meander through the next two whenever I need a bit of mindless alien fun :-)
Profile Image for Helen.
Author 29 books210 followers
January 13, 2025
Fantastic start to a great new series, loved it!
78 reviews4 followers
August 3, 2021
I loved the initial series and loved every book, this one steers away from them but is no less of a decent read. I mean, who doesn't love a good battle against giant space bugs as humanity looks for a new home. As always, this has been brilliantly written with full characters and brilliant locations. Would recommend to anyone, well apart from someone who reads chick-lit. I mean, who does that?
Profile Image for Beth C..
9 reviews
July 29, 2021
Excellent Prequel

As usual the Author has done a fantastic job with characters and story line! I couldn’t put it down. BRAVO! Can’t wait for more!
Displaying 1 - 9 of 9 reviews

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