C220 The Divine Soul of a Sacred Weapon!

All of a sudden, an earth-shattering boom jolted Zhang Xing from his deep contemplation.

"Boom! Boom! Boom!"

It sounded like the overture to a volcanic eruption, or the throbbing of an earthquake.

A formidable force caused the hundred-meter-tall mountain to sway incessantly, threatening to collapse at any moment!

Then, copious amounts of black gas billowed from every crevice of the mountain