 They leave from there by warning them that it should be kept at the Earth's equator during every Solar eclipse if they miss even one of the eclipse then the earth should face major destruction.The African tribe names the Sphere as Jua (Name of the Sun in Africa).Now the story moves to the present day where a Russian don is plotting to capture the Jua so that he will have the solution when the world is in destruction and thinks he can rule the world.