Killer Instinct (Tom Walker Book 1)

Name: Killer Instinct (Tom Walker Book 1)
Price: 0.99 USD
Availability: InStock
Rating: 4.3 (7999 reviews)
Author: Bradley Wright

by Bradley Wright

Mystery Thriller Thriller

4.3 (7,999)

4.3 stars from 7,999 reviews. One of the highest rated Mystery Thriller books we track.

$0.99KU80% off peak

Last checked: Jun 26, 2026

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Price history: $0.99 – $4.99

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Price range: $0.99 – $4.99

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Fans of these authors will like this...

Lee Child
David Baldacci
James Patterson

Fans of these books will like this...

The Bourne Identity
Killing Floor
Tell No One

Perfect for you if...

You love Jack Reacher and Bourne-style thrillers with a protagonist who's lethal but principled.
You want a mystery that builds tension across multiple plot threads: government conspiracy, a drug operation, and a revenge arc all converging.
You appreciate character-driven action where the stakes feel personal, not just procedural.

Maybe not for you if...

You prefer slow-burn literary thrillers over breakneck pacing and constant forward momentum.
You're squeamish about violence or graphic content in your action fiction.
You want a standalone novel rather than committing to the first book of a series.

About this book

Tom Walker arrives in his hometown and is immediately targeted by the clandestine government program he works for. Seeking refuge at a farm, he discovers an underground drug ring operating on the property without the owner's knowledge. Leila, the farm's owner, risks her life to nurse Walker back to health after he is injured. When Leila is kidnapped, Walker—injured, disoriented, and hunted by his own violent past—refuses to leave without saving the woman who saved him, even if it means neither of them survives. Killer Instinct is the first book in the Tom Walker series. The novel combines mystery, emotion, and character development, and concludes with a significant twist.

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Price History

Kindle price over time. Green zones = periods when the book was free.

$0.99 – $4.99

Currently on sale at $0.99 — 80% off peak. Price has dropped 7 times over the last 3 years. Goes on sale roughly every 150 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

Currently #7,255 in the Kindle store — a top-10K bestseller. Sales have softened 165% recently.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

Currently 4.3★ from 7,999 reviews

Gaining approximately 204 new reviews per month. Reader interest is accelerating. Rating has dipped slightly from 4.5 to 4.3.

Sale Prediction

Actual Predicted

This book is currently discounted at $0.99. It typically returns to around $4.99.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.