Dan Brown's bestseller The Da Vinci Code argues that the church has suppressed the truth - that the story of Jesus, dying on the Cross for the sins of the world, is utterly false: Brown's novel suggests that Jesus survived to marry Mary Magdalene and that their descendants live to this day in France. Dr Michael Green goes back to the original sources to check these assertions. Did the church suppress the truth? It certainly denounced many 'gospels' and other purported revelations. Why? What did it fear?