Alexander the Great, Attila, Tamerlane, Cortes... are great conquerors who redrew the map of the world and determined the course of history for centuries. The life of these people, despite the many eyewitness accounts, was a sealed secret even for their contemporaries, and death only thickened the veils of this mystery. What was the cause of Alexander the Great's death and where is his grave? Why did Attila, the Scourge of God, spare Rome? Is it true that the most terrible war of the 20th century began after Tamerlane’s grave was opened? Why does the soil of America not accept the ashes of Cortez? There are no clear answers to these questions, but it is all the more interesting to know what versions - sometimes the most incredible - put forward by researchers trying to unravel these mysteries.