Dan Browns bestselling novel, The Da Vinci Code, has captivated the imagination of millions of readers. Its provocative story and rich historical background has spurred wide interest in the authors source materials and has aroused controversies, both public and private, all over America. Readers everywhere want to know what is fact and what is fiction. Dan Bursteins S Dan Browns bestselling novel, The Da Vinci Code, has captivated the imagination of millions of readers. Its provocative story and rich historical background has spurred wide interest in the authors source materials and has aroused controversies, both public and private, all over America. Readers everywhere want to know what is fact and what is fiction. Dan Bursteins Secrets of the Code: The Unauthorized Guide to the Mysteries Behind The Da Vinci Code sorts out fact, informed speculation, and fiction, by presenting the views of the experts - archaeologists, theologians, art historians, philosophers and scientists - many of whose works Brown himself relied upon in developing his intriguing tale.