The papyrus inside the second cryptex directs Sophie and Langdon to Rosslyn Chapel in Scotland, whose docent turns out to be Sophie's long-lost brother, whom Sophie 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 Sophie's long-lost grandmother, and the widow of Jacques Saunière. It is revealed that Sophie is a descendant of Jesus Christ and Mary Magdalene . The Priory of Sion hid her identity to protect her from possible threats to her life. Sophie and Langdon part, promising to meet in Florence in a month.
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The theme in "The Da Vinci Code" is without a doubt religion. Its main theme is religion due to the fact that the story is based on the story of "The Holy Grail". Apparently, Jesus was meant to have drank wine symbolising his blood from a chalice, formerly known as "The Holy Grail". In Leonardo Da Vinci's painting of "The Last Supper", there is no chalice to be seen. Another reason is due to the fact that Robert Langdon is a Harvard professor who specializes in religious symbols and what they mean, . the "V" sign means feminine.