Dan Brown "The Secret of Secrets" Signed First Edition, First Printing w/COA [Fine/Fine]

Personally signed by Dan Brown, the #1 New York Times bestselling author of The Da Vinci Code

Doubleday (September 9, 2025) "The Secret of Secrets" by Dan Brown. Signed First Edition, First Printing with full number line on copyright page. Signed by Dan Brown directly onto the half-title page of the book. Hardcover with dust-jacket. 688 pages. Archival acid-free protection. Bookseller issued COA.

Dan Brown is the author of eight #1 bestselling novels, including The Da Vinci Code, which has become one of the bestselling books of all time, as well as Origin, Inferno, The Lost Symbol, and Angels & Demons. His thrillers have captivated readers worldwide and been the subject of intellectual debate and speculation. He is also the author of the bestselling children’s book Wild Symphony. Brown’s novels are published in 56 languages internationally, with over 250 million copies in print.

INSTANT #1 NEW YORK TIMES BESTSELLER • The world’s most celebrated thriller writer and author of The Da Vinci Code 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.

Reviews

Praise for The Secret of Secrets

“Intellectual fuel.... [The Secret of Secrets is] a wistful testament to the power of the printed word.”
—New York Times

“Like so many things that are insanely popular.... Brown’s thrillers look easy to imitate but aren’t. He shatters dramatic moments into shiny, irresistible shards.... Dan Brown clearly had fun writing his new book. It’s contagious.”
—Washington Post

“A master of the brainy, twisty thriller.... [Dan Brown's] novels move with kinetic energy, his plots are intricate puzzles shrouded in religious iconography [and] ancient cryptography. 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

“A new Dan Brown book has the ability to make you happy about inclement fall weather so you have an excuse to just stay home and read.... The story is so riveting you’ll want to clear your calendar.”
—USA Today

“Brown’s talent for assembling research is also evident in this novel’s alter ego as a guidebook to Prague, whose history and attractions are described in great and glowing detail.... There’s no shortage of action, derring-do, explosions, high-tech torture machines, attempted and successful murders, and opportunities for split-second, last-minute escapes.... A standout in the series.”
—Kirkus Reviews

Praise for Dan Brown

“Dan Brown is the master of the intellectual cliffhanger.”
—Wall Street Journal

“Brown is a master of the breathless, puzzle-driven thriller.”
—Richmond Times-Dispatch

Dan Brown

Daniel Gerhard Brown (born June 22, 1964) is an American author 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.

Brown's books have been translated into 57 languages and have sold over 200 million copies as of 2012. Three of his works—Angels & Demons, The Da Vinci Code, and Inferno—have been adapted into films, while one, The Lost Symbol, was adapted into a television series.

The Robert Langdon novels are deeply engaged with Christian themes and historical fiction, and have subsequently generated controversy. Brown states on his website that his books are not anti-Christian and that he is on a "constant spiritual journey" himself. He states that his book The Da Vinci Code is "an entertaining story that promotes spiritual discussion and debate" and suggests that the book may be used "as a positive catalyst for introspection and exploration of our faith."