Cracking the Da Vinci Code is neither the criticism nor approval of The Da Vinci Code. Being a literary fiction, it also provides the reader with some historical facts. The Da Vinci Code 's advocates will not accept it as their guide, though. While Dan Brown's is a brilliantly written and breathtakingnovel including a criminal plot, Cracking the Da Vinci Code reveals the historical facts being the basis for scrivingthe former one. It explains many concepts and their origin. It presents thefacts concerning the Albigens, crusades and the Order of Zion. It tells the story of Salomon's Temple, the Louvre and Roslynn. The author leads us to the places visited by Sophie Neveu, Leigh Teaing and Robert Langdon. We find out more about the things, characters and places described in Dan Brown's novel.This bookhas beenwrittenbecauseDan Brown's novel has as many opponents as advocates; while the former point out to The Da Vinci Code 's historical inconsistency, the latter treat it as a challenge to the christian dogma and orthodoxy.Anyone particularlyinterested in Dan Brown's book, will surely find The Da Vinci Code 's interesting, too, as it presents the historical background and the issues concerning the Order of Zion. It may also encourage to read such bestsellers as Holy Blood, Holy Grail .