Secret of Secrets - Mille feuilles

Hardcover, 688 pages

English language

Published Sept. 9, 2025 by Doubleday.

ISBN:: 978-0-385-54689-8

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.

3 editions

sifuCJC reviewed Secret of Secrets by Dan Brown (Robert Langdon, #6)

Or: Langdon Contemplates the Meaning of Life

4 stars

These are a guilty pleasure of mine. To those who read literature, these Langdon stories repeat a lot and only present deep topics on the surface. But the themes are fun to contemplate and the plots are fun.

Brown is getting pretty good at research these days, and there's almost an overwhelming amount of real-life details thrown in. I want to see Prague now.

And I always like a golem story.

These are a guilty pleasure of mine. To those who read literature, these Langdon stories repeat a lot and only present deep topics on the surface. But the themes are fun to contemplate and the plots are fun.

Brown is getting pretty good at research these days, and there's almost an overwhelming amount of real-life details thrown in. I want to see Prague now.

And I always like a golem story.