Robert Langdon #6 : The Secret of Secrets | Hardcover

The Secret of Secrets (Robert Langdon Book 6) by Dan Brown

Format: Hardcover
Pages: 704
Date of Release: 9 September 2025

Literary awards : Goodreads Choice Award Nominee for Mystery/Thriller (2025), She Reads Best of Award Nominee for Audiobook (2025)

Robert Langdon returns in The Secret of Secrets, the long-awaited new thriller from the internationally bestselling author of The Da Vinci Code and Angels & Demons. Fast-paced, intellectually gripping, and steeped in history and symbolism, this novel marks Dan Brown’s first work of fiction in over eight years.

While accompanying celebrated academic Katherine Solomon to Prague for a prestigious lecture, Langdon’s carefully ordered world collapses when Katherine vanishes without a trace from their hotel room. Stranded in an unfamiliar city and pursued by unknown forces, Langdon must race against time to uncover her whereabouts—and the truth behind her disappearance.

Prague itself becomes a formidable adversary. One of Europe’s oldest cities, layered with over two millennia of secrets, folklore, and forgotten knowledge, it hides a shadow world beneath its grand façade. As Langdon deciphers ancient symbols, hidden texts, and arcane clues, he realizes he is being hunted by a spectre born of the city’s darkest past.

From towering cathedrals and vast castles to underground labyrinths and graveyards buried twelve layers deep, Langdon is drawn into a conspiracy unlike any he has faced before. This time, the stakes are higher than ever—not just Katherine’s life, but the future of humanity itself.

Brilliantly plotted and relentlessly suspenseful, The Secret of Secrets pushes Robert Langdon to his intellectual and emotional limits, forcing him to confront the possibility of losing everything he holds dear.

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