"Yun Chuan, I seem to have found it!"

And after more than half an hour of searching on Nangong Yunchuan's side, Nangong Sousuke was the first to discover the passage to the underground dark river.

"Why are there stone steps here?"

When the three of them came over, Nangong Jun frowned and said as he looked at the stone steps below that obviously had traces of artificial carving.

"It seems that there are still a lot of secrets here that we don't know, let's go, go down and have a look..."

Nangong Yunchuan didn't expect to see the stone steps here, but since he came, he would go down and take a look.

......

"Strange, Yunchuan, why haven't they come back yet?"

Qianqiao looked up at the sky, these people had been away for more than four hours, even if the underground river was far away, this time should have gone back and forth...

"Everything is almost packed up here, why don't we go over and have a look?"

Nangong Ruxiu also proposed with some concern.

"Well, let's go over and take a look, Shi Ai, Xiaobei, let's go, let's go find Yunchuan and them. ”

Qianqiao turned around and greeted the two people who were picking up branches in the distance, and then raised her feet and walked in the direction of the hill...

*

"I didn't think there would be such a place underground..."

Looking at the huge underground cave in front of him, Nangong Sosuke exclaimed.

"It seems that this is the real habitat of the black Jiao. ”

Nangong Yunchuan found the skin of the black Jiao on the ground on the side of the cave.

Previously, the four of them walked down the steps for about ten minutes to this underground cave.

In addition to the underground dark river that runs through the north and south, there is also a very spacious riverbank for people to walk on, and there are glowing plants growing everywhere here, and the visibility is not low, so Nangong Yunchuan and others can clearly see everything here.

"There are even stone tables and stone benches here..."

Nangong Rufeng looked at the stone table and stone bench placed on the side of the river bank and said.

"Isn't it said that every freshman's military training is different? Who the hell is there?"

Nangong Sosuke looked at the very obvious traces of artificial carving around him, and frowned puzzled.

“......”

Different from the doubts of the three of them, Nangong Jun felt inexplicably familiar with everything in front of him from the time he came down, as if he had been here before, and this familiarity was even stronger than the last time he saw the dormitory castle.

"Ah Jun, why are you so pale?"

Nangong Yunchuan saw that the other party's face was pale, and he stepped forward with some worry and asked.

"I'm fine, it's just that it feels a little weird to me here, let's go, let's go ahead and have a look..."

Nangong Jun shook his head, he didn't mean to say this, he waved his hand casually and walked straight forward.

Because Nangong Jun was at the forefront, no one noticed a flash of red light in his slightly open eyes.

*

"I think they should have gone down from here. ”

Qian Qian looked down at the male shoe prints on the ground and said.

"Then I'll go down first, and you follow me..."

Le Zheng Shilian said and took the lead.

Qianqiao and a few people didn't ink, and followed them down the stone steps, but after they went down, they found that there was no road here.

"What's the situation? Are we on the wrong track?"

Nangong Ruxiu stretched out her hand to touch the hard stone wall in front of her, obviously the footprints were here, but why was there no road ahead?

"Let's look around, maybe there's a mechanism here. ”

When the four of them came down, they also noticed the traces of those artificial carvings, so Qian Qiao guessed that there was a high probability that there was a mechanism here. ：，，，