Robert Langdon, Harvard Professor Of Symbology, Receives An Urgent Late-night Call While In Paris- The Curator Of The Louvre Has Been Murdered. Alongside The Body Is A Series Of Baffling Ciphers. Langdon And A Gifted French Cryptologist, Sophie Neveu, Are Stunned To Find A Trail That Leads To The Works Of Da Vinci - And Further. The Curator, Part Of A Secret Society Named The Priory Of Sion, May Have Sacrificed His Life To Keep Secret The Location Of A Vastly Important Religious Relic Hidden For Centuries. It Appears That The Clandestine Vatican-sanctioned Catholic Sect Opus Dei Has Now Made Its Move. Unless Landon And Neveu Can Decipher The Labyrinthine Code And Quickly Assemble The Pieces Of The Puzzle, The Priory's Secret - And A Stunning Historical Truth - Will Be Lost Forever.