Many centuries ago, highly developed peoples who inhabited the Earth suddenly disappeared from its face. All that has remained from them are the ruins of cities that admire their architecture, amazing monuments of art, jewelry made of gold and copper, which speak of the high culture of the craftsmen who created them. Where and why these peoples went remains the greatest mystery of our planet. For centuries, scientists around the world have been building hypotheses about the disappearance of peoples. The warlike Khazars and Pechenegs, who never knew defeat, the mysterious Turks and Aztecs... dozens of peoples, numbering hundreds of thousands of warriors and farmers, artisans and shepherds in different centuries, suddenly disappeared for no apparent reason, leaving a memory of themselves among other peoples. Easter Island, abandoned in the middle of the ocean as a monument-reminder of disappeared peoples. Who were they who created the mysterious sculptures of Easter Island? The Earth holds many mysteries. The ancient Scythians are tribes of nomads who lived in the first millennium BC. They were known as the most warlike and invincible people in the world. Countless Scythian hordes carried out devastating campaigns. Their possessions extended from the Black Sea to China. It seemed there would be no end to their reign, but in the 3rd century BC they suddenly disappeared. Where did these peoples go? What more powerful force could defeat them? Where did they take the secret of their disappearance?