The three of them went inside the hole. The hole was connected to an extremely large cave.
Adam was amazed that such a large underground base would exist under a desolate wilderness.
As soon as they moved away from the entrance, they entered a place where there was not even a trace of light.
But fortunately, Alumig had an inextinguishable flame that served them as light and brighten up their eyesight so there was no hindrance in their progress.
The cave was long. It was when they walked three hours on a bumpy and slippery cave.
A light appeared. The trio immediately lowered their bodies and quickly found a rock to hide behind.
"…There is a place like this here..."
What appeared in front of them was a vast underground lake.
The size of the lake was so prodigious, it was hard to see the other side of the lake.
But, it was not the important part here.