The old man nodded, agreeing with his nephew's judgment.
The circle of rocks didn't look quite right at first glance, and it was strange that the young man's tracks disappeared here.
It can't be… a special secret base, can it.
The old man's curiosity was increasing.
Some idlers were like this. When they saw something strange, something they didn't quite understand, they would try to figure out what was going on.
Otherwise, it would feel uncomfortable like an itch they couldn't scratch.
The middle-aged man first installed the hidden camera, and then picked up a stone on the ground, hitting the rock wall hard. After hitting it for a while, many fragments broke off of the stone in his hands, and there wasn't even a scratch on the rock mass.
"It's so hard." Finally, the middle-aged man pulled out his phone and took a picture of the rock mass. "I know a friend who studies geology, I'll have him see what it is."
