Robert Langdon Returns Sept. 9th!

The Secret of Secrets, a new Robert Langdon novel, will be published on September 9, 2025 simultaneously across the globe in sixteen territories in addition to the United States, including the UK (Transworld, a division of Penguin Random House), Brazil (Sextante), Czech Republic (Argo), Denmark (Politikens),  Finland (WSOY), France (JC Lattes), Germany (Bastei Lüebbe), Italy (Rizzoli), Netherlands (Luitingh-Sijthoff), Poland (Sonia Draga), Portugal (Planeta Portugal), Slovakia (Ikar), Spain (Planeta), Catalonia (Columna), Sweden (Albert Bonniers Förlag), and Turkey (Altin Kitaplar).

Dan Brown says, “The Secret of Secrets is by far the most intricately plotted and ambitious novel I’ve written to date – and also the most fun. Writing it has been an unforgettable journey of discovery.”

Penguin Random House Global CEO Nihar Malaviya says, “Dan Brown has created a new Robert Langdon thriller that will mesmerize and delight readers across the world. The hallmarks of Dan’s books – codes, art, history, religion, and cutting-edge science – are on full display alongside a propulsive plot. And we find one of fiction’s greatest heroes, Robert Langdon, in love and on the run in one of the most mysterious and beautiful cities in the world. The Secret of Secrets is Dan’s best novel yet and this will be the biggest publishing event of 2025.”

Brown’s longtime editor Jason Kaufman says, “Dan always amazes me with his masterful plotting and prescient ideas. The Secret of Secrets delivers ingeniously, unveiling a fascinating world – with twists you’ll never see coming. This is classic Dan Brown.”

ABOUT THE SECRET OF SECRETS:

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.

Click here to learn more!