The Da Vinci Code, by Dan Brown, follows Harvard symbologist Robert Langdon, who is summoned to the Louvre after curator Jacques Saunière is mysteriously murdered. Working alongside French cryptologist Sophie Neveu, Langdon deciphers cryptic clues hidden in Leonardo da Vinci's paintings, leading them on a thrilling chase through Paris and London. They uncover the existence of the Priory of Sion, a secret society protecting an ancient secret that could shake the foundations of Christianity. Pursued by police and a shadowy antagonist, the duo races against time to solve the puzzle before the explosive truth falls into the wrong hands.