Dan Brown’s new novel, the eagerly awaited follow-up to his #1 international phenomenon, The Da Vinci Code, which was the bestselling hardcover adult novel of all time, will be published on September 15, 2009.

The Lost Symbol will once again feature Dan Brown’s unforgettable protagonist, Robert Langdon.

“The Lost Symbol is a brilliant and compelling thriller. Dan Brown’s prodigious talent for storytelling, infused with history, codes and intrigue, is on full display in this new book. This is one of the most anticipated publications in recent history, and it was well worth the wait,” said Sonny Mehta, Chairman and Editor in Chief of the Knopf Doubleday Publishing Group.

Brown’s longtime editor, Jason Kaufman, Vice President and Executive Editor at Doubleday said, “Nothing ever is as it first appears in a Dan Brown novel. This book’s narrative takes place in a twelve-hour period, and from the first page, Dan’s readers will feel the thrill of discovery as they follow Robert Langdon through a masterful and unexpected new landscape. The Lost Symbol is full of surprises.”

"This novel has been a strange and wonderful journey," said Brown. "Weaving five years of research into the story's twelve-hour timeframe was an exhilarating challenge. Robert Langdon’s life clearly moves a lot faster than mine."

In this stunning follow-up to the global phenomenon The Da Vinci Code, Dan Brown demonstrates once again why he is the world’s most popular thriller writer. The Lost Symbol is a masterstroke of storytelling--a deadly race through a real-world labyrinth of codes, secrets, and unseen truths . . . all under the watchful eye of Brown’s most terrifying villain to date. Set within the hidden chambers, tunnels, and temples of Washington, D.C., The Lost Symbol accelerates through a startling landscape toward an unthinkable finale.

As the story opens, Harvard symbologist Robert Langdon is summoned unexpectedly to deliver an evening lecture in the U.S. Capitol Building. Within minutes of his arrival, however, the night takes a bizarre turn. A disturbing object--artfully encoded with five symbols--is discovered in the Capitol Building. Langdon recognizes the object as an ancient invitation . . . one meant to usher its recipient into a long-lost world of esoteric wisdom.

When Langdon’s beloved mentor, Peter Solomon--a prominent Mason and philanthropist--is brutally kidnapped, Langdon realizes his only hope of saving Peter is to accept this mystical invitation and follow wherever it leads him. Langdon is instantly plunged into a clandestine world of Masonic secrets, hidden history, and never-before-seen locations--all of which seem to be dragging him toward a single, inconceivable truth.

As the world discovered in The Da Vinci Code and Angels & Demons, Dan Brown’s novels are brilliant tapestries of veiled histories, arcane symbols, and enigmatic codes. In this new novel, he again challenges readers with an intelligent, lightning-paced story that offers surprises at every turn. The Lost Symbol is exactly what Brown’s fans have been waiting for . . . his most thrilling novel yet.