The Da Vinci Code is a 2003 mystery thriller novel by Dan Brown. It is Brown's second novel to include the character Robert Langdon: the first was his 2000 novel Angels & Demons. The Da Vinci Code follows symbologist Langdon and cryptologist Sophie Neveu after a murder in the Louvre Museum in Paris entangles them in a dispute between the Priory of Sion and Opus Dei over the possibility of Jesus and Mary Magdalene having had a child together.