Shielding Instinct (Cerberus Tactical K9 Team Charlie Book 3)

Name: Shielding Instinct (Cerberus Tactical K9 Team Charlie Book 3)
Price: 2.99 USD
Availability: InStock
Rating: 4.5 (1813 reviews)
Author: Fiona Quinn

by Fiona Quinn

4.5 (1,813)

4.5 stars from 1,813 reviews. Top 82% of book books we track.

$2.99KU50% off peak

Last checked: May 6, 2026

Read free with Kindle Unlimited

Price history: $0.99 – $5.99

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Price range: $0.99 – $5.99

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Perfect for you if...

You love romantic suspense where the woman is the one solving the puzzle, not waiting to be rescued.
You're drawn to military heroes who are genuinely challenged by their love interest's independence and brilliance.
You want action, chemistry, and a working dog character who isn't just window dressing.

Maybe not for you if...

You prefer slow-burn romance where tension builds over months. This one moves fast and refuses to let up.
You're looking for a standalone. This is book 3 in a series, and you'll get more from the full arc.
You want your suspense kept separate from your romance. This weaves them so tightly they're inseparable.

About this book

Dr. Petra Armstrong is a leading FBI brain security researcher who leverages her neurodivergent abilities in her work. When an ill-fated trip to St. Croix, several rescues, and a convicted felon on the run bring Hawkeye Kesse—a former Green Beret and member of the Cerberus Tactical K9 Team Charlie—into her life, the two find themselves navigating one crisis after another. Hawkeye believed his military background and tactical experience made him unflappable, yet Petra consistently surprises him. As they depend on each other to navigate their circumstances, Hawkeye hopes to find time to know the brilliant woman he's met and explore what might develop between them. Surviving dangerous conditions and preventing a criminal family from escaping justice present immediate obstacles. However, the real challenge lies in whether Petra and Hawkeye can build something lasting together. This book features a STEM heroine, a protective hero, and Cooper, a working K9.

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Price History

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

$0.99 – $5.99

Currently on sale at $2.99 — 50% off peak. Price has dropped 2 times over the last 16 months. Goes on sale roughly every 215 days.

Sales Rank

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

Currently around #19K in the Kindle store — a steady mid-list seller.

Rating & Reviews

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

Currently 4.5★ from 1,813 reviews

Gaining approximately 163 new reviews per month. Reader interest is accelerating. Rating has remained stable at 4.5 over the tracking period.

Sale Prediction

Actual Predicted

This book is currently discounted at $2.99. It typically returns to around $5.99.

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.