As the depth of the pit increased, the sound became louder and louder. Yasi did not dare to use too much force for fear of collapsing the rock wall.

Expose all secrets.

So she persevered in this pit, and finally, with her careful carving, she made a support hole more than 100 meters long.

This branch hole is connected to an underground tunnel, and there is a rumbling sound in the underground tunnel. This sound is the buzzing sound that Yasi heard through the stone wall dozens of meters thick.

After opening this branch hole, Yasi discovered that the spiritual energy in this hole was even more intense, reaching an extremely dense level. He could feel his strength increasing even if he took a breath inside.

The underground river followed the stone bank next to it and not far away, I heard a louder sound. It was an underground waterfall with a height of 100 meters. There was a flash of red light at the top of the waterfall. Yasi studied Yifan carefully.

Found a piece of red spirit jade that shines rose red.

The red spirit jade is embedded deeply in the rocks in the water of the waterfall, emitting a faint red light. Under the fluctuation of the water, it looks even more agile and mysterious, and this water is filled with a lot of spiritual energy.

Yasi now knows why his Yunzhan Cave is so full of spiritual energy. It turns out that the source is the red spirit jade. The Yunzhan Cave has been nourished by the spiritual energy emitted by the red spirit jade for thousands of years, so it is also filled with a lot of spiritual energy.

Aura.

The aura of the water in this waterfall is even greater, and after this underground river flows out, it circulates with the water around the Qingyun Sect, causing all the water around the Qingyun Sect to be more or less mixed with aura, thus causing the Qingyun Sect's beautiful appearance.

In the place of cultivation, Yasi did not expect that he would discover the source of Qingyun Sect's spiritual energy...

Yasi carefully studied the geographical form of the underground tunnel and found that the upstream of the waterfall is still an underground river, and the hole in the underground river is also very thick. The water flow fills the entire water hole, and the water volume of the waterfall is still very large.

Diving against the current in the turbulent current, Yasi's investigation revealed that there was not much aura in the water upstream. In other words, the source of the aura here was the red jade that glowed red and was hidden under the waterfall.

The exit downstream of the waterfall is also closed in the underground river. Where does this underground river lead to? Does it have only one channel, or is it divided into many forked holes in the middle.

After studying the geographical form here, Yasi now has a relatively general understanding of this place. This underground river is like a water pipe hidden deep in the mountain. It suddenly expanded next to Yunzhan Cave, forming a partially closed

Space.

This space is like a high tower with a hollow interior. The top of the tower is the source of the waterfall, and the bottom of the tower is where the waterfall rushes down. The drop is nearly a hundred meters, and it looks amazing.

However, after the waterfall falls, the water flow becomes calm, because the terrain under the waterfall is very flat, and without the drop, there is naturally no flow energy, but the aura in the water is very abundant.

Since Yasi discovered this cave-in-a-cave, he has also set up a defensive shield at the entrance of this branch cave. Because the entrance of the branch cave is relatively small, the level of the defensive shield can be set very high, even if a master at the peak of the extraordinary realm wants to

It is also extremely difficult to enter. It is a place that is easy to defend but difficult to attack. Moreover, this cave within a cave is still under two layers of defensive cover. No matter what kind of master wants to break through, it will be more difficult than climbing to the sky.
Chapter completed!