"Secret of Secrets" is a thrilling novel by Dan Brown, part of the Robert Langdon Series. Published by Knopf Doubleday Publishing Group in 2025, this hardcover book stands at 9.5 inches long, 1.3 inches high, and 6.5 inches wide, weighing 33.5 ounces. With 688 pages, the novel is written in English and falls under the genres of Fiction, Thrillers/Suspense, Thrillers/Technological, and Action & Adventure. It promises to be a gripping and suspenseful read that will keep readers on the edge of their seats as they follow the twists and turns of the intriguing plot.
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