Silence, darkness.
Myriad Image Celestial Pull, a pinnacle cultivation method of the modern path, directly pointed to the essence of gravity.
Tian Ge Xing, a pinnacle cultivation method of the modern path, directly pointed to the essence of electromagnetism.
The fundamental cultivation methods of both combatants were nearly Dao-level to begin with, their power already extraordinary. And caught up in the thrill of battle, both had used their strongest moves. Ai Changyuan's move was "Collapsing Heaven," a supreme technique created by Lord of Yuanli. Once cultivated to a profound level, a single strike could bring down heaven and split the earth. Wu Shiqin, meanwhile, had used the half-move she had yet to fully master: "Do You Not See Lieque's Thunder Shaking, Enduring Since Ancient Times?" This doubled both their destructive power.
The result of those two moves colliding was a slight disturbance in the four fundamental forces within the range affected by their mana. To the whole of heaven and earth, such turmoil was not worth mentioning, but the four fundamental forces were the foundation of all things—any disturbance at all could cause heaven and earth to cease existing.
This was precisely the situation in the area covered by the aftershock of their clash. Both gravity and electromagnetism could disrupt light. Light could no longer travel according to ordinary physical laws, so naturally no one could see.
Fortunately, Ai and Wu were only Qi Refining Cultivators. They could not truly shake the existence of the Four Spirits of Creation, so the darkness came quickly and vanished just as quickly.
Soon, the darkness dispersed, revealing the two once more. Wu Shiqin knelt on the ground with her face raised to the sky, her right hand lifted in a supporting gesture, as though a Celestial Immortal were raising a jug of wine