"Father, who are you looking for?" The ten-year-old child took the trouble to ask this question that he had asked many times. He looked intently at the taciturn man who traveled all over the mountains, rivers and lakes. The man lowered his thick eyelashes and fell silent again... He didn't speak for a long time, so long that the children thought he would never answer him again: "I'm looking for a fool who is lost and can't find his way back to me. Let's go!" On the Gobi Desert with long yellow sand, two figures, one tall and one short, were walking slowly...