The Lost Symbol by Dan Brown

The Lost Symbol is a thriller set in Washington, D.C., that follows Harvard symbologist Robert Langdon as he is drawn into a dangerous mystery. When Langdon is summoned to deliver a lecture at the U.S. Capitol, he discovers that his friend Peter Solomon has been kidnapped by a mysterious figure demanding he decode the secrets of an ancient Masonic pyramid hidden somewhere in the nation's capital. The novel explores the intersection of science and religion, delving into Freemasonry, esoteric wisdom, and spiritual symbolism. Langdon teams up with Katherine Solomon, Peter's sister, and CIA Director Inoue Sato to unravel cryptic clues while evading authorities. As they piece together the pyramid's secrets, they uncover a profound truth about ancient knowledge and power. Readers will enjoy this fast-paced mystery filled with historical intrigue, symbolic codes, and twists that challenge perceptions of science, spirituality, and hidden wisdom. It appeals to fans of puzzle-driven thrillers and those interested in Masonic history and esoteric traditions.