You searched dozens of museums around the world have studied hundreds of paintings, murals and manuscripts of the great Leonardo da Vinci. Finally, the day has come. You have deciphered the code of da Vinci and know where the Holy Grail is hidden. All the evidence pointed to a small house museum of Leonardo in the Vatican. For your shadow followed by agents of the mysterious organization «Opus Dei». Do you have time to unravel the mysteries of the great inventor, and to find the Grail before they get to you?