The Girl and the Unlucky 13 (Emma Griffin® FBI Mystery)

Name: The Girl and the Unlucky 13 (Emma Griffin® FBI Mystery)
Price: 2.99 USD
Availability: InStock
Rating: 4.6 (7812 reviews)
Author: A.J. Rivers

by A.J. Rivers

Contemporary Fiction Mystery Thriller

4.6 (7,812)

4.6 stars from 7,812 reviews. One of the highest rated Contemporary Fiction books we track.

$2.99KU50% off peak

Last checked: May 1, 2026

Read free with Kindle Unlimited

Price history: $2.99 – $5.99

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Price range: $2.99 – $5.99

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Perfect for you if...

You love procedural mysteries with real emotional stakes, where the detective's personal trauma shapes how she solves cases.
You want a series you can binge, with a strong female lead whose past haunt her investigations.
You're after twisty reveals where nothing is what it seems and the victim might not be who everyone thinks.

Maybe not for you if...

You prefer standalone mysteries that wrap up cleanly in one book without cliffhangers.
You want cosy mysteries or light crime fiction rather than dark, disturbing cases involving missing children.
You need your procedurals grounded in police protocol rather than dramatic, high-stakes emotional drama.

About this book

FBI agent Emma Griffin has spent her career confronting trauma and loss, including the death of her mother and the mysterious death of her ex. She works to uncover hidden truths and bring light to darkness. Following the Arrow Lake investigation, Emma and Dean are drawn to a case involving Ashley Stevenson, a young girl who disappeared five years ago without a trace. When Ashley suddenly reappears, the case raises more questions than answers. As stories and lies emerge, suspicion falls on multiple people. The investigation takes a darker turn when evidence of human remains is discovered—a murder committed in cold blood. Emma is forced to reconsider everything she believed about the case. The investigation reveals two types of people in this world: the lucky, who live to tell their story, and the unlucky, whose stories remain untold.

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Price History

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

$2.99 – $5.99

Currently on sale at $2.99 — 50% off peak. Price has dropped 7 times over the last 5 years. Goes on sale roughly every 215 days.

Sales Rank

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

Currently around #24K in the Kindle store — a steady mid-list seller. Sales have softened 109% recently.

Rating & Reviews

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

Currently 4.6★ from 7,812 reviews

Gaining approximately 85 new reviews per month. Steady word of mouth growth. Rating has remained stable at 4.6 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.