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Thriller · 2017 · PG-13

The Demon Crown

by James Rollins

Sigma Force battles a prehistoric biological weapon being unleashed in Hawaii

“Bone-chilling.” –Publishers Weekly (Starred Review) “One of the best in the series.” –Booklist (Starred Review) To save mankind’s future, the members of Sigma Force must make a devil’s bargain as they join forces with their most hated enemy to stop an ancient threat in this gripping adventure from #1 New York Times bestselling author James Rollins. Off the coast of Brazil, a team of scientists discovers a horror like no other, an island where all life has been eradicated, consumed, and possessed by a species beyond imagination. Before they can report their discovery, a mysterious agency attac

For14+GenreThrillerLength432 pagesRead time~11.5 hours

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

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What's in this book, at a glance — five things readers want to know before they start.

Violence

A lot

Biological weapon deaths; action combat in Hawaii

Language

Some

Moderate profanity

Sexual Content

Barely any

Brief sexual content

Substance Use

Barely any

Moderate alcohol use

Emotional Intensity

Some

Ancient biological weapon with mass casualty potential; Nazi-era origin

What this book is about

The 13th Sigma Force novel by James Rollins (2017) in which an ancient biological agent — preserved for millions of years in amber — is accidentally released in Hawaii. The organism is a living weapon that was first discovered and weaponized by the Nazis. Sigma Force must stop it before it spreads beyond the islands. Features Rollins's signature blend of history, science, and action.

Notes for sensitive readers

Reader-flagged moments and themes that may affect your experience.

Biological weapon threat

Action and combat violence

Nazi historical elements

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