A Killer's Code (Daniela Vega Book 3)

Name: A Killer's Code (Daniela Vega Book 3)
Price: 2.49 USD
Availability: InStock
Rating: 4.6 (4173 reviews)
Author: Isabella Maldonado

by Isabella Maldonado

Mystery Thriller Thriller

4.6 (4,173)

4.6 stars from 4,173 reviews. Top 58% of Mystery Thriller books we track.

$2.49KU50% off peak

Last checked: Jun 16, 2026

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Price history: $2.49 – $4.99

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Price range: $2.49 – $4.99

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Perfect for you if...

You want a female protagonist who's sharp, capable, and doesn't need saving—Dani Vega is a profiler and codebreaker solving puzzles under pressure.
You love thrillers with momentum and twists that actually land, where each clue pulls the story forward instead of slowing it down.
You're already invested in this series and want to see where Dani's journey goes next, or you're starting here and want a standalone-feeling entry into an ongoing story.

Maybe not for you if...

You prefer quiet, psychological thrillers where the threat is internal; this one is visceral and kinetic.
You need a romance subplot to stay engaged; the focus here is investigation and survival, not relationships.
You like to solve the mystery before the characters do; Maldonado keeps you guessing through the final chapters.

About this book

During a failed undercover operation, hit man Gustavo Toro dies in the arms of FBI Special Agent Daniela "Dani" Vega. Before his death, Toro recorded a video message that reveals secrets about a mysterious mastermind who has operated undetected for decades. Dani and her team must follow Toro's cryptic clues across the country to uncover the truth. As they piece together his past, they discover a far more complex web than anticipated. The powerful figure behind Toro's secrets will go to extreme lengths to protect their identity, including targeting anyone who threatens to expose them.

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Price History

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

$2.49 – $4.99

Currently on sale at $2.49 — 50% off peak. Price has dropped 4 times over the last 2 years. Goes on sale roughly every 124 days.

Sales Rank

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

Currently around #17K in the Kindle store — a steady mid-list seller. Sales have softened 67% recently.

Rating & Reviews

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

Currently 4.6★ from 4,173 reviews

Gaining approximately 298 new reviews per month. Reader interest is accelerating. Rating has dipped slightly from 4.7 to 4.6.

Sale Prediction

Actual Predicted

This book is currently discounted at $2.49. 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.