The Secret Of Secrets by Dan Brown, part of the Robert Langdon series, is a first edition large print trade paperback published by Browning in 2025. This novel, with a post-modern literary movement, is intended for adults and features a dust jacket. Signed by the author, this English language fiction book weighs 33.3 ounces and has 688 pages. The novel is illustrated and offers a captivating narrative that will surely captivate readers with its intriguing plot and engaging storytelling.