C66 Supreme Strong Fist!

"Boom!" Suddenly, a thunderous sound erupted, and immediately after, a stone door crashed down like a bolt of lightning, sealing the cave entrance.

"Rumble!" The earth-shattering noise continued unabated. Lin Xi fixed his gaze on the massive rock blocking the entrance, noticing its violent tremors.

Roughly ten minutes passed before the booming sound slowly dissipated