Dan Brown's 'The Lost Symbol' plunges readers into a labyrinthine world of ancient Masonic secrets, cryptic clues, and a desperate race against time. Harvard symbologist Robert Langdon is thrust into a new adventure when his mentor, Peter Solomon, is kidnapped. Langdon must navigate Washington D.C.'s hidden chambers and forgotten tunnels, deciphering a series of complex puzzles connected to America's founding fathers and a shocking truth that could reshape the world. This gripping thriller explores themes of history, power, and the pursuit of knowledge, keeping readers on the edge of their seats until the very last page.