The Secret of Secrets — A Novel book cover by Dan Brown

The Secret of Secrets

Adult • Mystery • Thriller & Suspense • Thrillers • Thriller
A Novel
Robert Langdon faces a chilling assailant Katherine Solomon's book reveals human consciousness Murder leads to a frantic search across Europe The narrative spans Prague, London, and New York Exploration of cutting-edge noetics and mythology

The world’s most celebrated thriller writer returns with his most stunning novel yet—a propulsive, twisty, thought-provoking masterpiece that will entertain readers as only Dan Brown can do. Robert Langdon, esteemed professor of symbology, travels to Prague to attend a groundbreaking lecture by Katherine Solomon—a prominent noetic scientist with whom he has recently begun a relationship. Katherine is on the verge of publishing an explosive book that contains startling discoveries about the nature of human consciousness and threatens to disrupt centuries of established belief. But a brutal murder catapults the trip into chaos, and Katherine suddenly disappears along with her manuscript. Langdon finds himself targeted by a powerful organization and hunted by a chilling assailant sprung from Prague’s most ancient mythology. As the plot expands into London and New York, Langdon desperately searches for Katherine . . . and for answers. In a thrilling race through the dual worlds of futuristic science and mystical lore, he uncovers a shocking truth about a secret project that will forever change the way we think about the human mind.

Published in 2025.
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Edition information

Book details

Publisher
DoubleDay
Publication date
2025
Print length
880 pages
Language
en
ISBN
9798217170661

Mystery + Thriller & Suspense + Thrillers

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Readers connected to this book most often reflect Psychological Moral Explorer reader archetypes. Their strongest shared genre interests include Thriller, Science, Literary Fiction, and Historical Fiction. They are commonly drawn to themes such as Exploring The Fractured Self, Survival, technology, and gaming.

About the author

Dan Brown

Dan Brown

Daniel Gerhard Brown is an American writer best known for his thriller novels, particularly the Robert Langdon series Angels & Demons (2000), The Da Vinci Code (2003), The Lost Symbol (2009), Inferno (2013), Origin (2017) and The Secret of Secrets (2025). His novels are treasure hunts that usually take place over a 24-hour period and center on recurring themes of cryptography, art, and conspiracy theories.
Author information: Wikipedia
A favorite quote

““A master of the brainy, twisty thriller. . . . The Secret of Secrets is perhaps his most ambitious undertaking yet: a dense thriller that is also a meditation on the nature, and the possible future, of human consciousness.”—Los Angeles Times”

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