C270 Downhole Tunnel

Xie Zhifeng was sure that the echo below the well was not ordinary. He knew that there was another passage below and believed the man's words.

"Hero, I wonder if you want to go down first, or let me go down first?" The man carefully probed.

That was a problem. He went down first, but if he let that man go down first, he was afraid that he would establish a firm foothold. When he jumped again