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Book synopsis

Extinction Code -

In the year 2149, extinction is no longer forever.

The Helix Temporal Authority has perfected time travel and turned humanity's deadliest predators into the ultimate luxury hunt. Wealthy

clients journey into Earth's prehistoric past armed with advanced weaponry, temporal anchors, and one guarantee:

Nothing they kill can change history.

Kameron Jonas knows that guarantee is a lie.

As a clean-up specialist for the HTA, Kameron's job is to erase evidence, contain timeline contamination, and keep the past buried. But after a disastrous Tyrannosaurus hunt leaves his team stranded in the Late Cretaceous, Kameron uncovers evidence of impossible timeline alterations-proof that someone has been rewriting extinction itself.

The deeper he digs, the more horrifying the truth becomes.

Secret experiments.

Erased lives.

Illegal prehistoric trafficking.

And something ancient moving beneath time itself.

Now hunted by the very organization he once served, Kameron must race across collapsing timelines toward the single structure controlling humanity's grip on history-the Prime Relay Spire hidden at the edge of the dinosaur extinction event.

But as the sky darkens and the asteroid approaches, Kameron discovers a terrifying truth:

Time was never meant to belong to humanity.

And something older than civilization is watching.

Book details

• Full title: Extinction Code
• Author: Quinn Threadgill, Quinn Talon Threadgill
• Language: English
• Binding: Paperback
• Number of pages: 312
• EAN: 9798196133374
• ID: 52484564
• Publisher: Independently published
• Weight: 728 g
• Dimensions: 280 × 216 × 17 mm
• Date of publishing: 08. May 2026

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