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EXOGENESIS: A SciFi Adventure

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From the bestselling author of Xenophage and The Ancient Code comes a new high-octane science fiction thriller.

Exogenesis is a standalone adventure that also continues the story begun in Neogenesis.

A Chinese scientist races to contain the most dangerous invasive organism ever discovered.

A battle-hardened special forces operative accepts one final escort a woman deep into hostile territory in Africa to uncover the truth behind a forgotten massacre.

A mother begins to face the horror of how special her child might truly be.

Three strangers. Three lives bound by a single impossible truth.

A truth that could rewrite the history of life on Earth, reshape the future of evolution, and leave humanity with no place in the world to come.

Perfect for fans of Michael Crichton and James Rollins.

521 pages, Kindle Edition

Published July 27, 2026

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About the author

T.S. Falk

33 books104 followers
T.S. Falk is a lifelong adventure enthusiast and when a certain pandemic hit, he started writing the books he would like to read.

THE AUTHOR HAS NO SOCIAL MEDIA PROFILES AND ALL PROFILES OUT THERE ARE FAKE AND NOT CONNECTED TO THE AUTHOR AT ALL! HE DOES NOT HAVE A WEBSITE!

If you want to reach him, you find an e-mail address to do so at the end of each book!

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5 stars
159 (63%)
4 stars
82 (32%)
3 stars
9 (3%)
2 stars
0 (0%)
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Displaying 1 - 7 of 7 reviews
Profile Image for Maria Fledgling Author  Park.
1,057 reviews55 followers
August 3, 2026
Is she real or Memorex?

T. S. Falk keeps upping his thriller game. With Exogenesis, he has written a tightly-crafted, atmospheric and suspense-driven speculative fiction novel that will leave you yearning for the next one.

Falk's command of prose creates characters you won't forget, far-flung environments that appear whole before your eyes, and detailed scenarios tense enough to build your blood pressure to dangerous levels.

Exogenesis is a powerhouse of a thriller, something especially great for a second book in a series. I, for one, cannot wait for the next book to be released. Excellent work by T.S. Falk, well deserving of a 5-star rating.
Profile Image for Matt Egan.
915 reviews24 followers
August 21, 2026
'The Source' Is Back...

Exogenesis is a sci-fi thriller revolving around an organism capable of rapidly causing rapid evolution via an epigenetic cascade in organisms exposed to it in utero. The pace is fast, the writing as good as I have come to expect from anything Falk writes, and there is just enough science to satisfy a geek like me! This is a great follow-up with an ending that will keep you guessing and sets up another book. It can't come soon enough! Overall, 5/5 stars, highly recommended for any reader looking for some science with their thriller!
79 reviews2 followers
September 5, 2026
a fantastic read, tense and dramatic

A gripping tale, filled with lots of personal detail, great scene descriptions, and somewhat over-the-top genetic jargon, the writing is well done, though this particular book could use a little more thorough editing.
The subject matter, exogenesis, if it were real and took the form as described in this story, would be totally terrifying. It could mean the end of life as we know it on Earth.
The plot had a number of twists, and at times it seems the story could have gone in other directions, which kept me guessing and interested to see what happens next. A little twist near the end hints at another book in the series. Can’t wait.
12 reviews
August 26, 2026
nog beter, spannender en gelaagder dan de eerste

Ik hoop dat er nog meer delen komen, want deze verhaallijn verdient het om verder te gaan. Je kan er alle kanten mee op. Super verhaallijn
Profile Image for Patrick.
1,041 reviews8 followers
August 16, 2026
Exogenesis

This book is packed full of a lot of action, and more. The more part is some interesting ideas about evolution, or what causes it. You might not believe the implications.
5 reviews
August 28, 2026
I love TSFalk’s Books!!!!

This series is awesome. I’ve read most of his books and they are worth the read!!!! Definitely read this book!
Profile Image for Chuck Woodbury.
412 reviews
September 19, 2026
Non Stop!

Absolutely non stop action and adventure. A stand alone sequel with mostly new characters. Thrilling and difficult to put down.
Displaying 1 - 7 of 7 reviews