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Subtle Frequency

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Blood Work meets A Killer's Heart with the grounded, investigative tone of a classic procedural and the compelling, character-driven mystery for fans of supernatural and investigative crossovers.

When police detective Drake Harrison dies in a car accident, he takes the key to finding the kidnapped child, Angela Sweet, with him. That is until his heart continues to beat- in the chest of another man.

Organ recipient Clark Steele is ready to embrace his new lease on life, courtesy of a stranger's heart, but he is thrown off balance by bizarre visions and behaviors that make him feel as though he is someone else. And maybe he is. The strange phenomena impacting Clark's visions and personality align with the life of his detective donor and the clues Drake gathered before his death. Clark joins his psychiatrist, Dr. Brill, and Drake's partner, John Baxter, to unravel the clues and find Angela and her kidnapper.

It's not as easy as they hoped.

Evidence is tampered with, a mystery caller taunts them at every turn, and a mysterious makeshift grave stands bare as Dr. Brill works to retrieve the answers that remain deep within Clark's psyche, both desperate to bring them to light.

It's a race against time, and the only evidence is in a dead man's memory.

Will they find Angela before she is gone forever?

356 pages, Paperback

Published February 3, 2026

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About the author

Kathy Whyte

3 books3 followers

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Displaying 1 - 6 of 6 reviews
1 review
June 11, 2026
Subtle Frequency by Kathy Morgan Whyte was an amazing read! As a first-time author, Kathy has created a captivating story that blends mystery, suspense, and emotion in a truly unique way.

The story of an organ donor, a heart transplant recipient, and a detective kept me engaged from beginning to end. The premise is thought-provoking, the characters are compelling, and the twists kept me turning the pages.

I was genuinely impressed by Kathy’s storytelling and look forward to reading more from her in the future. Congratulations on a fantastic debut novel!
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1 review1 follower
June 19, 2026
It is an excellent book. Clark, John and Dr Brill are outstanding characters. It was hard to get work done. I didn't want to put the book down. I needed to know what happens 😁 I can't wait for another book from this outstanding author.
1 review
Review of advance copy
February 2, 2026
Loved the plot. Background story was new to me very intriguing.
9 reviews1 follower
February 28, 2026
This book never lost my interest. Suspense and a bit of para normal rolled together to make for a fun read.
1 review
February 16, 2026
I really enjoyed reading Subtle Frequency! If you like a crime/detective story with a touch of the supernatural then you will love this book!
Displaying 1 - 6 of 6 reviews