Immediately, a Eight Trigrams Diagram light screen suddenly appeared on the ground, penetrating the "Celestial Thunder Stone" and shooting straight into the void.
"Swoosh!"
The three-zhang "Celestial Thunder Stone" seemed to be impacted by the light screen, shaking slightly.
From underground, the sound of iron chains was transmitted, as if something was locked underground, struggling to break free.
"Boom!"
Another flash of thunder erupted from the "Celestial Thunder Stone", striking the ground and causing the entire valley to tremble slightly.
The thunder light fell, and the Eight Trigrams Diagram seemed to dim considerably.
"Not good! This valley seems to have something unusual? It's not a naturally formed place of creation?"
Li Yunjing's heart jolted, and he turned abruptly, darting towards the narrow crevice he had come through!
At that moment, he didn't even think about what was beneath the "Celestial Thunder Stone"!
