In August 1939, the Lada tribe near Aden Port mysteriously vanished, leaving behind empty houses and untouched food supplies. Similarly, an Eskimo tribe near Lake Angikuni in Canada disappeared under mysterious circumstances in December 1930. Despite the stark differences in climate—one being scorching hot and the other frigid cold—both cases present the same enigma. Why did these tribes disappear collectively? Could it be related to some unknown factors?