章 99: Chapter 99: The Seventh-Order Formation is Broken, Misty Cloud City Can't Hold Back_1

Half a month later.

Zhou Sui, Ji Bingyu, Mu Ziyi, and Xia Jingyan were still cultivating in the underground shelter, leading a very regular life.

Even though their lives were confined to the underground shelter, with no one to disturb them and plenty of provisions, life was quite comfortable.

Of course, after advancing to the eighth layer of Qi cultivation, Zhou Sui's cultivation progress had slowed somewhat.

But even so, he devoted himself to hard cultivation every day without slackening.

Boom~~

Just then, a sudden, intense shaking transmitted from the earth, so intense that even Zhou Sui and the others underground could feel it.

The Spirit Vein deep in the earth began to tremble, buzzing ominously.

"What's happening?"

"An earthquake? Could there be an earthquake?"

Suddenly, Ji Bingyu and the others woke from their cultivation with a start, filled with doubts, not knowing what had occurred.

All their eyes turned simultaneously to Zhou Sui.