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The Secret of Secrets: A Novel (Robert Langdon)

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.

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The Secret of Secrets by Dan Brown 2025 Retail Hardcover First Edition

"The Secret of Secrets" by Dan Brown is a thrilling novel from the Robert Langdon series, published by Knopf Doubleday Publishing Group in 2025. This first edition hardcover book features a narrative that combines fiction with elements of suspense, technology, and action & adventure. With 688 pages and intriguing illustrations, this novel is sure to captivate readers with its gripping plot and engaging storytelling by the renowned author Dan Brown.

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