The Nature of Secrets (Finley O’Sullivan Book 2)

Name: The Nature of Secrets (Finley O’Sullivan Book 2)
Price: 2.49 USD
Availability: InStock
Rating: 4.6 (10987 reviews)
Author: Debra Webb

by Debra Webb

Mystery Thriller Thriller

4.6 (10,987)

4.6 stars from 10,987 reviews. One of the highest rated Mystery Thriller books we track.

$2.49KU52% off peak

Last checked: Jun 3, 2026

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Price history: $2.49 – $5.24

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Price range: $2.49 – $5.24

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Perfect for you if...

You enjoy legal thrillers where the investigator's certainty crumbles as they uncover uncomfortable truths.
You like morally grey female characters who challenge your assumptions about guilt and innocence.
You're drawn to procedural mysteries with smart, flawed protagonists digging through layers of deception.

Maybe not for you if...

You need clear heroes and villains without moral ambiguity or you'll feel unsatisfied.
You prefer standalone mysteries over series and don't want to invest in returning characters.
You're looking for cosy mysteries or lighter fare rather than dark psychological tension.

About this book

Legal investigator Finley O'Sullivan is still processing her own husband's murder when she takes on a new case. Ellen Winthrop, a prominent figure in finance known for advancing women in a male-dominated industry, has been accused of killing her husband in their family home. Winthrop hires the firm where O'Sullivan works to defend her. O'Sullivan's assignment is straightforward: prove Ellen's innocence. However, as she investigates the Winthrops' marriage, O'Sullivan's confidence in Ellen's account begins to waver. The evidence suggests Ellen may have actually committed the crime—and possibly more than once.

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Price History

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

$2.49 – $5.24

Currently on sale at $2.49 — 52% off peak. Price has dropped 11 times over the last 4 years. Goes on sale roughly every 105 days.

Sales Rank

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

Currently around #15K in the Kindle store — a steady mid-list seller. Sales have softened 150% recently.

Rating & Reviews

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

Currently 4.6★ from 10,987 reviews

Gaining approximately 220 new reviews per month. Reader interest is accelerating. Rating has remained stable at 4.6 over the tracking period.

Sale Prediction

Actual Predicted

This book is currently discounted at $2.49. It typically returns to around $5.24.

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.