The flying vessel sped through the air, repeatedly piercing the void and passing over the nine rivers. After traveling an unknown distance, an enormous city appeared ahead.
This city was immensely vast, appearing dazzling and multicolored. Yet upon drawing closer, one could see that the various colors came from formations in operation, layer upon layer tightly protecting the city at their center.
"Not bad formations. Even I would need some time to break through them. Low-level Primordial Life would find it difficult to breach this city." Qin Hao studied the formations operating above the city and nodded.
With his profound accumulation in formations, Qin Hao could undoubtedly be called a formation grandmaster. With a single glance, he saw through the entire formation completely.
From defense and offense to the connections and coordination between the various formations, there were no secrets in Qin Hao's eyes.
The formations here were not merely the accumulated knowledge of a single Source World. They contained formations from different cultivation systems, different Source Worlds, and even different eras of the same Source World.
Every Source World was immensely vast and had existed for an extraordinarily long time.
Throughout that process, every Source World underwent cycles of destruction and rebirth, just like the Original Universe.
They were continuously destroyed and reborn, giving rise to new life and even new paths of cultivation.
During this process, the life within would perish along with it. Only sufficiently powerful experts who left the Source World at such times could survive.
The Ancestor Yanfeng and the Leiting Ancestor were like this. They had passed through an unknown number of eras of Source Worlds, creating their own factions and leaving behind bloodlines and inheritances each time.
Many God Emperor-level beings were unwilling to leave their Source Worlds, but when those worlds faced