Yang Xiao and Xing Zhe kept digging, not daring to stop.
However, the speed of digging was still not fast enough, especially with the rubble above constantly squeezing down. A hole they had just dug out would soon be filled again by the stones.
"Yang Xiao, this is not a solution. I feel that the demon beast is getting closer to us."
Xing Zhe felt the sounds from the underground river getting louder, and couldn't help but panic.
"This beast has managed to dig a tunnel stretching ten to twenty kilometers long in such a short time through the hard underground river rock passage. Its genetic evolution level must be at least at the Emperor Level Advanced Realm, and even with the two of us combined, we are no match."
"Yang Xiao, what do we do?"
Yang Xiao stopped digging, thought for a moment, and suddenly exclaimed with joy:
"I have another way, how could I have forgotten about it."
Hearing this, Xing Zhe asked in surprise:
"What other good method do you have?"
