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.He compels Langdon at gunpoint to solve the second cryptex's password, which Langdon realizes is "apple." Langdon secretly opens the cryptex and removes its contents before tossing the empty cryptex in the air.
Police captain Bezu Fache tells him that he was summoned to help the police decode the cryptic message Saunière left during the final minutes of his life.
The message includes a Fibonacci sequence out of order.
The trio then flees the country on Teabing's private plane, on which they conclude that the proper combination of letters spell out Neveu's given name, Sofia.
Opening the cryptex, they discover a smaller cryptex inside it, along with another riddle that ultimately leads the group to the tomb of Isaac Newton in Westminster Abbey.
Langdon explains that what she witnessed was an ancient ceremony known as hieros gamos or "sacred marriage." By the time they arrive at Westminster Abbey, Teabing is revealed to be the Teacher for whom Silas is working.
Teabing wishes to use the Holy Grail, which he believes is a series of documents establishing that Jesus Christ married Mary Magdalene and bore children, in order to ruin the Vatican.The guardian of Rosslyn Chapel, Marie Chauvel Saint Clair, is Neveu's long-lost grandmother.It is revealed that Neveu and her brother are descendants of Jesus Christ and Mary Magdalene.Louvre curator and Priory of Sion grand master Jacques Saunière is fatally shot one night at the museum by an albino Catholic monk named Silas, who is working on behalf of someone he knows only as the Teacher, who wishes to discover the location of the "keystone," an item crucial in the search for the Holy Grail.After Saunière's body is discovered in the pose of the Vitruvian Man, the police summon Harvard professor Robert Langdon, who is in town on business.From her hiding place, she is shocked to see her grandfather with a woman at the center of a ritual attended by men and women who are wearing masks and chanting praise to the goddess.She flees the house and breaks off all contact with Saunière.If the cryptex is forced open, an enclosed vial of vinegar breaks and dissolves the message inside the cryptex, which was written on papyrus.The box containing the cryptex contains clues to its password.The book has, however, been extensively denounced by many Christian denominations as an attack on the Catholic Church, and consistently criticized for its historical and scientific inaccuracies.The novel nonetheless became a worldwide bestseller and has been translated into 44 languages.