A book in the same vein as the famous "Da Vinci Code" although it seems to have been written before. Always the same ingedients, an ordinary man, a mysterious and beautiful woman, secret societies, the dead, the killers, a puzzle to solve. And again Leonardo was in the loop! The action is omnipresent and the tension rises from page to page. A book that can no longer drops once you read the first chapters. Good entertainment!