<P> Teabing is arrested by Fache, who by now realizes that Langdon is innocent . Bishop Aringarosa, head of religious sect Opus Dei and Silas' mentor, realizing that Silas has been used to murder innocent people, rushes to help the police find him . When the police find Silas hiding in an Opus Dei Center, he assumes that they are there to kill him and he rushes out, accidentally shooting Bishop Aringarosa . Bishop Aringarosa survives but is informed that Silas was found dead later from a gunshot wound . </P> <P> The final message inside the second keystone leads Neveu and Langdon to Rosslyn Chapel, whose docent turns out to be Neveu's long - lost brother, whom Neveu had been told died as a child in the car accident that killed her parents . 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 . The Priory of Sion hid her identity to protect her from possible threats to her life . </P> <P> The real meaning of the last message is that the Grail is buried beneath the small pyramid directly below the La Pyramide Inversée, the inverted glass pyramid of the Louvre . It also lies beneath the "Rose Line," an allusion to "Rosslyn ." Langdon figures out this final piece to the puzzle; he follows the Rose Line to La Pyramide Inversée, where he kneels before the hidden sarcophagus of Mary Magdalene, as the Templar knights did before him . </P> <Table> <Tr> <Td> <Ul> <Li> Robert Langdon </Li> <Li> Jacques Saunière </Li> <Li> Sophie Neveu </Li> <Li> Bezu Fache </Li> <Li> Silas </Li> <Li> Manuel Aringarosa </Li> <Li> Sister Sandrine </Li> </Ul> <P> </P> </Td> <Td> <Ul> <Li> André Vernet </Li> <Li> Leigh Teabing </Li> <Li> Rémy Legaludec </Li> <Li> Jérôme Collet </Li> <Li> Marie Chauvel Saint - Clair </Li> <Li> Pamela Gettum </Li> </Ul> <P> </P> </Td> </Tr> </Table>

Da vinci code what is the holy grail