Island Investigation (Caribbean Cruise Cozy Mystery Book 6)

Name: Island Investigation (Caribbean Cruise Cozy Mystery Book 6)
Price: 0.99 USD
Availability: InStock
Rating: 4.5 (343 reviews)
Author: Susan Harper

by Susan Harper

Contemporary Fiction Mystery Thriller

4.5 (343)

4.5 stars from 343 reviews

$0.99KU75% off peak

Last checked: Apr 24, 2026

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Price history: $0.99 – $3.99

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Perfect for you if...

You love mysteries where the setting feels as important as the crime itself, especially tropical backdrops that make death feel out of place.
You're invested in Hope and her friend group from earlier books and want to see how their dynamic shifts under pressure.
You prefer puzzles that move quickly without getting bogged down in police procedure or dark violence.

Maybe not for you if...

You need standalone mysteries and don't want to catch up on five previous books first.
You're looking for hard-boiled noir or psychological twists. Cosy mysteries with lighter tone aren't your speed.
You find the Caribbean cruise setting clichéd or prefer mysteries grounded in cities or small towns.

About this book

Hope, Felix, and Dae-un take a day off to enjoy a boat tour to a deserted island. When an unexpected opening becomes available, they board the tour expecting an unforgettable adventure. However, one person will not be leaving the island alive. Hope and her friends must work to identify a killer stranded on the deserted island. Island Investigation is the sixth book in the Caribbean Cruise Cozy Mystery series. The series features fast-paced mysteries with interesting characters, exotic locations, and unexpected twists.

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Price History

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

$0.99 – $3.99

Currently on sale at $0.99 — 75% off peak. Price has dropped 3 times over the last 5 years. Goes on sale roughly every 665 days.

Sales Rank

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

Currently around #955K in the Kindle store — a niche title.

Rating & Reviews

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Currently 4.5★ from 343 reviews

Review activity has been quiet recently. Rating has remained stable at 4.5 over the tracking period.

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Actual Predicted

This book is currently discounted at $0.99. It typically returns to around $3.99.

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.