In 'The Lost Symbol,' Harvard symbology professor Robert Langdon is plunged into the secretive realms beneath Washington D.C. when his mentor, Peter Solomon, is kidnapped. A cryptic message involving a centuries-old Masonic legend propels Langdon on a perilous quest through tunnels, temples, and hidden chambers in America's capital. As Langdon navigates this underground world teeming with Masonic secrets and untold revelations, he must decode historical intricacies and elude shadowy figures to unveil an earth-shattering truth lying in plain sight. The stakes are high in this fast-paced thriller where every familiar landmark hides arcane clues to an ancient conspiracy, and understanding them could mean the difference between life and death.