A forerunner to some of the ideas later investigated in The Da Vinci Code,[2][3] Joyce's book made the claim that Jesus of Nazareth may have actually died aged 80 at Masada[4] near the Dead Sea, site of the last stand made by Jewish zealot rebels against the Roman Empire, after the Fall of Jerusalem and the destruction of the Second Temple.

Joyce's book further suggests that Jesus may have survived the crucifixion, was present during the Roman siege of Masada during the Jewish Revolt of 66-74 AD, and that he had married Mary Magdalene and fathered a child with her.

Joyce further claimed that an anonymous and corrupt archaeologist, "Dr. Grosset", asked him to help smuggle the 'Jesus Scroll' out of Israel that had been discovered during that dig.

[6] Joyce says in his book that the scroll was sneaked aboard an airplane by Dr. Grosset, who then most likely took it to Russia to strike a deal with Soviet leaders.

[6] Joyce proposed controversial theories concerning the historicity of Jesus that caused outrage among many Christians, and for which he received numerous death threats.