Released in 2025, "Ultimate Secret" is Dan Brown's sixth and latest novel. It centers on his iconic character, Robert Langdon, who previously featured in *Angels & Demons*, *The Da Vinci Code*, *The Lost Symbol*, *Inferno*, and *Origin*.

Set in Prague, Czech Republic, "Ultimate Secret" begins with symbologist Langdon and consciousness researcher Katherine Solomon attending a science conference. What starts smoothly quickly devolves into a complex conspiracy involving mystical and political forces.

The unfolding plot involves a bugged hotel room, Katherine's nightmares turning real, and relentless attacks on her forthcoming manuscript, which promises to redefine understanding of consciousness. As Langdon delves deeper, he confronts a sophisticated force capable of altering humanity itself.

Dan Brown once again delivers his signature style: a fragmented, intricate novel filled with extensive information and masterful, suspenseful plot twists that captivate until the final page. Prague serves as the primary setting, chosen for its numerous iconic religious and historical landmarks.

The Vietnamese edition, 950 pages long, was translated by Le Dinh Chi and released in july by Dan Tri Publishing House in collaboration with Bach Viet. *Photo: Publisher provided*

Throughout the book, Brown guides readers on an exploration of the ancient city. Long-standing religious structures become the origin of the Golem, a famous mystical creature in Judaism, while underground sites from World War II conceal a clandestine advanced research station. This intricate system of symbols and hidden histories offers a familiar appeal to his devoted readership.

A significant departure from his previous works like *The Da Vinci Code*, *The Lost Symbol*, and *Angels & Demons*—which drew heavily from art and religious history—this novel's central mystery is future-oriented. "Ultimate Secret" specifically explores the application of unresolved aspects of consciousness science to critical fields.

This interdisciplinary field combines objective scientific techniques with subjective inner knowledge to investigate the nature of reality. In an interview with NPR, Dan Brown explained that it is a study of consciousness, specifically exploring how the human mind can influence matter.

The book reinterprets "spiritual" mysteries such as telepathy, precognition, clairvoyance, the sixth sense, personality disorders, and out-of-body experiences through a new lens. Drawing on pioneering research, the author posits a compelling hypothesis: what if consciousness is not a mysterious product of the brain, but something that can be controlled?

A key hypothesis suggests the human brain acts as a continuous signal receiver and transmitter, where our perception is limited and dependent on specific neurotransmitters. Under normal conditions, the brain regulates itself to prevent overload, allowing us to perceive only what is commonly known. This implies a latent capacity for humans to unlock new visions and perceptions.

This pursuit forms the core of Katherine Solomon's research and her book, thrusting her and Langdon into a perilous situation. This newfound ability could enable critical advancements, such as covert political espionage through out-of-body experiences or human-machine integration via artificial neurons.

The narrative extends beyond mere research, encompassing elements of counter-espionage. The breathless chases between Langdon, Katherine, and those vying for control of this secret create an engaging plot. Dan Brown further enhances the novel's emotional depth by introducing dangerous secondary forces.

Beyond the conflict between science and political agendas, the novel raises ethical questions about such research: should it be permitted, and how do its "victims" feel? The enigmatic figure of the Golem, whose true identity is only revealed on the final page, adds another layer of intrigue. Furthermore, the constant shifting of allegiances and the intertwined narratives between the United States and the Czech Republic compel readers to keep turning pages.

Dan Brown's focus on pioneering research demonstrates his commitment to crafting novel storylines. However, the portrayal of Robert Langdon lacks significant development or distinction from previous appearances. Moreover, the secret surrounding the Golem is somewhat predictable early on, diminishing its surprise impact.

The *Los Angeles Times* describes the novel as a "dense meditation on the nature of human consciousness" and "the most ambitious" work from a "master of the thriller genre with many unexpected twists." "Ultimate Secret" is hailed as a work "driven by relentless energy, its plot centered on intricate puzzles layered with religious symbols and ancient codes."

Author Dan Brown. *Photo: Character website*

Dan Brown, 62, has penned eight bestselling novels, according to *The New York Times*, with *The Da Vinci Code* being one of the best-selling books of all time. His Robert Langdon series has captivated hundreds of millions of readers worldwide, sparking lively debates on history, religion, and science.

Brown's works have been translated into 56 languages, with over 250 million copies in print globally. In Vietnam, all his novels, including *Inferno*, *Origin*, *Digital Fortress*, and *Deception Point*, have been translated and enjoyed widespread popularity since their early release.

Tuan Anh