: The book focuses heavily on the rituals, symbols, and history of the Freemasons, including their influence on the founding of the United States and iconic landmarks like the Washington Monument.

: Langdon is summoned to the U.S. Capitol to give a lecture but finds a severed hand—the " Hand of the Mysteries "—belonging to his mentor and prominent Freemason, Peter Solomon .

: Through Katherine Solomon’s work, the novel explores the idea that human consciousness can physically affect matter—a blend of ancient mysticism and modern scientific research.

Lost Symbol — The

: The book focuses heavily on the rituals, symbols, and history of the Freemasons, including their influence on the founding of the United States and iconic landmarks like the Washington Monument.

: Langdon is summoned to the U.S. Capitol to give a lecture but finds a severed hand—the " Hand of the Mysteries "—belonging to his mentor and prominent Freemason, Peter Solomon .

: Through Katherine Solomon’s work, the novel explores the idea that human consciousness can physically affect matter—a blend of ancient mysticism and modern scientific research.