Rising Doubt (A Cassandra Fierce Suspense ThrillerBook Six)
"Molly Black has written a taut thriller that will keep you on the edge of your seat... I absolutely loved this book and can't wait to read the next book in the series!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

When uncharted hazards off the coast of Seattle start claiming ships and lives, Coast Guard Investigator Cassandra Fierce dives into murky waters to uncover a deadly conspiracy. Can she unmask the saboteurs of Puget Sound before more lives are lost to the depths?

"I binge read this book. It hooked me in and didn't stop till the last few pages... I look forward to reading more!"
—Reader review for Found You
⭐⭐⭐⭐⭐

RISING DOUBT is book #6 in a long anticipated new series by critically-acclaimed and #1 bestselling mystery and suspense author Molly Black, whose books have received over 2,000 five-star reviews and ratings. The series begins with RISING TIDE (Book #1).

The Cassandra Fierce series delivers a pulse-pounding suspenseful thriller led by a complex and talented heroine. This gripping mystery series combines non-stop action with nail-biting tension, offering readers a roller coaster of shocking revelations and unforeseen turns. With its breakneck pace and addictive storytelling, these psychological thrillers are guaranteed to keep you engrossed until the wee hours. For fans of crime fiction writers such as Lee Child, Teresa Driscoll, and Rachel Caine, the Cassandra Fierce series is a must-read.

Future books in the series are now available!

"I loved this book! Fast-paced plot, great characters and interesting insights into investigating cold cases. I can't wait to read the next book!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"Very good book... You will feel like you are right there looking for the kidnapper! I know I will be reading more in this series!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"This is a very well written book and holds your interest from page 1... Definitely looking forward to reading the next one in the series, and hopefully others as well!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"Wow, I cannot wait for the next in this series. Starts with a bang and just keeps going."
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"Well written book with a great plot, one that will keep you up at night. A page turner!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"A great suspense that keeps you reading... can't wait for the next in this series!"
—Reader review for Found You
⭐⭐⭐⭐⭐

"Sooo soo good! There are a few unforeseen twists... I binge read this like I binge watch Netflix. It just sucks you in."
—Reader review for Found You
⭐⭐⭐⭐⭐
1146144327
Rising Doubt (A Cassandra Fierce Suspense ThrillerBook Six)
"Molly Black has written a taut thriller that will keep you on the edge of your seat... I absolutely loved this book and can't wait to read the next book in the series!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

When uncharted hazards off the coast of Seattle start claiming ships and lives, Coast Guard Investigator Cassandra Fierce dives into murky waters to uncover a deadly conspiracy. Can she unmask the saboteurs of Puget Sound before more lives are lost to the depths?

"I binge read this book. It hooked me in and didn't stop till the last few pages... I look forward to reading more!"
—Reader review for Found You
⭐⭐⭐⭐⭐

RISING DOUBT is book #6 in a long anticipated new series by critically-acclaimed and #1 bestselling mystery and suspense author Molly Black, whose books have received over 2,000 five-star reviews and ratings. The series begins with RISING TIDE (Book #1).

The Cassandra Fierce series delivers a pulse-pounding suspenseful thriller led by a complex and talented heroine. This gripping mystery series combines non-stop action with nail-biting tension, offering readers a roller coaster of shocking revelations and unforeseen turns. With its breakneck pace and addictive storytelling, these psychological thrillers are guaranteed to keep you engrossed until the wee hours. For fans of crime fiction writers such as Lee Child, Teresa Driscoll, and Rachel Caine, the Cassandra Fierce series is a must-read.

Future books in the series are now available!

"I loved this book! Fast-paced plot, great characters and interesting insights into investigating cold cases. I can't wait to read the next book!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"Very good book... You will feel like you are right there looking for the kidnapper! I know I will be reading more in this series!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"This is a very well written book and holds your interest from page 1... Definitely looking forward to reading the next one in the series, and hopefully others as well!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"Wow, I cannot wait for the next in this series. Starts with a bang and just keeps going."
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"Well written book with a great plot, one that will keep you up at night. A page turner!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"A great suspense that keeps you reading... can't wait for the next in this series!"
—Reader review for Found You
⭐⭐⭐⭐⭐

"Sooo soo good! There are a few unforeseen twists... I binge read this like I binge watch Netflix. It just sucks you in."
—Reader review for Found You
⭐⭐⭐⭐⭐
4.99 Pre Order
Rising Doubt (A Cassandra Fierce Suspense ThrillerBook Six)

Rising Doubt (A Cassandra Fierce Suspense ThrillerBook Six)

by Molly Black
Rising Doubt (A Cassandra Fierce Suspense ThrillerBook Six)

Rising Doubt (A Cassandra Fierce Suspense ThrillerBook Six)

by Molly Black

eBook

$4.99 
Available for Pre-Order. This item will be released on May 14, 2025

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Overview

"Molly Black has written a taut thriller that will keep you on the edge of your seat... I absolutely loved this book and can't wait to read the next book in the series!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

When uncharted hazards off the coast of Seattle start claiming ships and lives, Coast Guard Investigator Cassandra Fierce dives into murky waters to uncover a deadly conspiracy. Can she unmask the saboteurs of Puget Sound before more lives are lost to the depths?

"I binge read this book. It hooked me in and didn't stop till the last few pages... I look forward to reading more!"
—Reader review for Found You
⭐⭐⭐⭐⭐

RISING DOUBT is book #6 in a long anticipated new series by critically-acclaimed and #1 bestselling mystery and suspense author Molly Black, whose books have received over 2,000 five-star reviews and ratings. The series begins with RISING TIDE (Book #1).

The Cassandra Fierce series delivers a pulse-pounding suspenseful thriller led by a complex and talented heroine. This gripping mystery series combines non-stop action with nail-biting tension, offering readers a roller coaster of shocking revelations and unforeseen turns. With its breakneck pace and addictive storytelling, these psychological thrillers are guaranteed to keep you engrossed until the wee hours. For fans of crime fiction writers such as Lee Child, Teresa Driscoll, and Rachel Caine, the Cassandra Fierce series is a must-read.

Future books in the series are now available!

"I loved this book! Fast-paced plot, great characters and interesting insights into investigating cold cases. I can't wait to read the next book!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"Very good book... You will feel like you are right there looking for the kidnapper! I know I will be reading more in this series!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"This is a very well written book and holds your interest from page 1... Definitely looking forward to reading the next one in the series, and hopefully others as well!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"Wow, I cannot wait for the next in this series. Starts with a bang and just keeps going."
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"Well written book with a great plot, one that will keep you up at night. A page turner!"
—Reader review for Girl One: Murder
⭐⭐⭐⭐⭐

"A great suspense that keeps you reading... can't wait for the next in this series!"
—Reader review for Found You
⭐⭐⭐⭐⭐

"Sooo soo good! There are a few unforeseen twists... I binge read this like I binge watch Netflix. It just sucks you in."
—Reader review for Found You
⭐⭐⭐⭐⭐

Product Details

BN ID: 2940185940372
Publisher: Molly Black
Publication date: 05/14/2025
Series: A Cassandra Fierce Suspense Thriller , #6
Sold by: Barnes & Noble
Format: eBook

About the Author

Bestselling author Molly Black is author of the MAYA GRAY FBI suspense thriller series, comprising eleven books; of the RYLIE WOLF FBI suspense thriller series, comprising six books; of the TAYLOR SAGE FBI suspense thriller series, comprising eight books; of the KATIE WINTER FBI suspense thriller series, comprising eleven books (and counting); of the RUBY HUNTER FBI suspense thriller series, comprising five books (and counting); of the CAITLIN DARE FBI suspense thriller series, comprising six books (and counting); of the REESE LINK mystery series, comprising six books (and counting); of the CLAIRE KING FBI suspense thriller series, comprising seven books (and counting); of the PIPER WOODS mystery series, comprising eight books (and counting); of the GRACE FORD mystery series, comprising eight books (and counting); of the CASEY BOLT mystery series, comprising seven books (and counting); of the JADE SAVAGE mystery series, comprising seven books (and counting); of the ELISE CLOSE psychological thriller series, comprising five books (and counting); of the TESSA FLINT mystery series, comprising seven books (and counting); of the CLARA PIKE FBI suspense thriller series, comprising five books (and counting); and of the CASSANDRA FIERCE suspense thriller series, comprising seven books (and counting).

An avid reader and lifelong fan of the mystery and thriller genres, Molly loves to hear from you, so please feel free to visit www.mollyblackauthor.com to learn more and stay in touch.
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