The History of the Development of First-Level Civilization

Earth civilization is not as it appears. In fact, there are higher-level underground civilizations. The underground civilization has reached the fourth-level civilization, while the surface civilization is only the first-level civilization. The surface civilization of the first-level civilization is still at the level of spaceships, satellites, airplanes, high-speed trains, and telephones and videos. The fourth-level civilization has reached the point where it can soar into the clouds and mist, fly into the sky and escape from the earth, and mobilize the energy of heaven and earth to create things out of thin air. When underground civilization and surface civilization gradually become entangled, what magical things will happen? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.