"If their physique wasn't advantageous, they naturally needed survival skills to live; otherwise, they would have been extinct long ago."
Lin Yi's words earned agreement from the others; technology was their only means of survival, and it was naturally something that needed vigorous development.
After walking about ten meters, the path abruptly ended, but a downward-extending hole appeared.
The width of the hole was about one meter. Standing at the edge, Lin Yi shone a flashlight down and easily reached the bottom with the light.
"The estimated depth is about 20 meters."
Lin Yi looked up and noticed a rope hanging overhead, but only a fragment remained.
"They probably used this rope to get down into the hole, but as time passed, the rope weathered and broke, leaving just this piece."
The others nodded, agreeing with Lin Yi's theory.
"Do we need a rope to go down?"
"Yes, that would be more convenient."
