This analysis was generated by AI from publicly available reader reviews, literary criticism, and book discussions. It has not been verified by a BookLens community reviewer and may contain errors. Be the first to verify →
Content snapshot
Flag an inaccuracy →What's in this book, at a glance — five things readers want to know before they start.
Violence
A lot
Mass casualty threat; murders connected to the water supply; investigation
Language
Some
Moderate language
Sexual Content
Barely any
Mild
Substance Use
Some
Strong; the water supply contamination; the potential for mass harm
Emotional Intensity
A lot
Strong; the paranoia of contaminated infrastructure; what a community does when it can't trust its basic systems; the reveal of the conspiracy
What this book is about
The third and final Promise Falls novel: the series arc reaches its catastrophic conclusion. A water supply contamination threatens the entire town, and the investigation into who is responsible and why leads to the heart of everything that has been wrong with Promise Falls. Barclay's conclusion is his most ambitious thriller plotting.
Notes for sensitive readers
Reader-flagged moments and themes that may affect your experience.
Water supply contamination threatening mass casualties
Reader Verification
Be the first to verify
this rating
Have you read The Twenty-Three? Submit a community rating to confirm or correct the AI estimate. Your review helps other readers make an informed choice.
Rate this book →Free · ~5 minutes · No account required
Similar reads
More Thriller books from the catalog.
Think this AI estimate is off?
Flag an inaccuracy →Where to Buy
Affiliate links — BookLens earns a small commission at no extra cost to you.



