Since the founding of the Christian church there has always been controversy over how the organization has been run. The Da Vinci Code and The Secret Supper deal with an alternative interpretation of early Christianity and the gospels, very different from that of the Orthodox Catholic Church; both novels also deal with the mysteries behind some of Leonardo Da Vinci's most famous paintings. describes the attempts of Robert Langdon, professor of religious symbolism at Harvard University, to solve the murder of the famous curator Jacques Saunière of the Louvre Museum in Paris. The title of the novel refers, among other things, to the fact that Saunière's body is found in the Denon wing of the Louvre, naked and posing as in Leonardo Da Vinci's famous drawing, the Vitruvian Man, with a cryptic message written next to his body and a Pentacle drawn on his stomach with his own blood (Brown 10-37). The novel has several simultaneous subplots that intertwine the lives of different characters; eventually all the characters are reunited and the subplots resolved in the conclusion. To unravel the mystery you must solve a series of puzzles, including anagrams and numerical puzzles. The final solution is closely connected to the possible location of the Holy Grail and a mysterious society called the Priory of Sion, as well as the Knights Templar. The story also involves the Roman Catholic organization Opus Dei. As explained by Leigh Teabing to Sophie Neveu (in The Da Vinci Code), the figure to the right of Jesus is presumably not the apostle John, but Mary Magdalene. According to the book, Mary Magdalene was the wife of Jesus Christ and was in fact pregnant with his child when Jesus was crucified. The absence of a chalice in the painting presumably indicates that Leonardo knew that Mary Magdalene was actually the Holy Grail (the bearer of the blood of Jesus). The letter “V” created with the body positions of Jesus and Mary, since “V” is the symbol of the sacred feminine, represents this (Allen1). The apparent absence of the "Apostle John", according to this interpretation, is explained by identifying John as "the disciple loved by Jesus", a presumed code for Mary Magdalene. The interpretation of hidden messages in Leonardo's famous works (which relate to the concept of the sacred feminine), including the Mona Lisa and the Last Supper, figure prominently in the solution of the mystery.