Night.
In the underground river beneath Lake Libe.
Ye Yuan swam swiftly toward the stone wall at the end of the "maze."
By now, Ye Yuan was certain.
This stone wall had most likely been man-made.
As he drew closer and closer to it.
The scene before him became increasingly clear.
This stone wall did not merely block everything above the water.
Even underwater, it formed an obstruction.
The river flowed out through more than a dozen holes, each only a little over a meter in diameter.
The ever-present piranhas.
Also entered the underground river through those holes.
Was this naturally formed by nature?
Ye Yuan would never believe it, not even if he were beaten to death.
There were far too many traces of human construction on this stone wall.
But if this truly was a man-made stone wall.
It felt somewhat unbelievable.
Who exactly?
Would build something nearly like a stone barricade in a place like this?
If the wall was meant to block the river.
Why carve so many holes into its bottom?
And let the water flow through?
Everything was like layers upon layers of mist.
Laid out right before Ye Yuan's eyes.
Braving swarms of piranhas, Ye Yuan struggled his way to the stone wall.
Through the holes in the wall, Ye Yuan's perception had already seen everything beyond it.
And once Ye Yuan saw what lay behind the stone wall.
His expression changed sharply.
Ye Yuan's face was exceedingly grim at that moment.
And there was even a trace of anger in it.
The reason Ye Yuan wore such an expression.
Was entirely because he could not accept what he saw beyond the wall.
Behind this stone wall was a natural cavern.
And both sides of the river within the cavern.
Were entirely blocked