Bang bang bang!

Several fist-sized rocks were smashed down.

Xuanzhen raised his arm and blocked it with his Taoist robe.

Fortunately, the force of the rocks was not very strong, and they were all blocked.

This cave is too narrow and any emergency situation is very dangerous.

Xuanzhen urged: "We have to get out quickly, the falling rocks above are too scary."

Lu Fanzhou pondered and looked outside the cave.

At this time, the sound of the flute seemed to have stopped.

"Okay, let's go down."

As he spoke, he held the entrance of the cave and jumped.

The entrance of the cave is two meters high from the ground, and the ground is covered with green grass.

The grass was soft, and Lu Fanzhou laid a thick layer of straw mat where he still landed.

Therefore, the landing of several people went smoothly.

Even Duan Jingzhi, who was very weak, landed safely.

After Chongning jumped down, he looked around, feeling both familiar and unfamiliar.

This is the lower reaches of the underground river, and he has never been there.

But overall, there is not much difference from the upstream.

The underground river stretches out into a long and narrow space, and I don't know where it flows.

The crowd I saw at the entrance of the cave just now has disappeared.

It was empty over there, as if there was nothing but the mighty river water.

Sun Yi asked curiously: "Where are those people? Why are they missing?"

A group of figures suddenly disappear, always looking very strange.

Duan Jingzhi said: "It was there just now, but suddenly disappeared? Is that a person or a ghost?"

Sun Yi trembled all over, "I'm timid, don't scare me."

Lu Fanzhou looked over there with a cautious expression and said, "This underground river is too weird. We'd better be careful."

However, it is unreasonable for a group of people to disappear inexplicably.

Chongning asked: "Have you been to the places further down?"

You Lanfeng said: "We have detected before that the space over there is getting smaller and smaller."

According to his description, the entire underground river space is narrow on both sides and wide in the middle.

It looks like a spindle.

Chongning asked: "Have you seen the location where the underground river finally flows out?"

You Lanfeng frowned slightly, "The river finally flows out, and it should be Baichuan entering the sea. The location there is very steep, so we didn't go to see it."

Lu Fanzhou's eyes lit up and he said, "What Chongning means is that there will be another space behind the downstream exit?"

Because in the upper reaches of the underground river, at its source, there is a flower valley connected to it.

The entire tomb seems to be very symmetrical.

There are even buildings with mirrored tombs.

Behind the upper reaches, there is a flower valley.

There should be a space behind the downstream for corresponding purposes.

You Lanfeng pondered and said, "Then let's go over and take a look?"

Chongning felt that there must be a space connected to the downstream exit.

That group of figures couldn't have disappeared out of thin air, they must have entered that space.

Lu Fanzhou and others rested for a while, then followed the underground river downstream.

The river here is very wide at first, and becomes narrower as you go forward.

This is almost similar to the situation upstream.

Everyone walked slowly and cautiously.

Lu Fanzhou suddenly stopped and looked at the surrounding stone walls.

Chongning looked over and was surprised to find many arrows nailed to the stone wall!

The arrow seemed to be fired from across the river with great force.

Each arrow penetrated the stone wall several inches.

You Lanfeng narrowed his eyes slightly, "Look at the riverside."

Chongning took a look with his flashlight and found that there were many scattered bamboos by the river.

The bamboos were dark, scattered all over the ground.

Sun Yi asked in confusion: "Why are there so many bamboos?"

Lu Fanzhou said: "That's not bamboo, but a bamboo flute."

Chongning looked carefully, and sure enough, there were regular holes on the bamboo.

These are some broken bamboo flutes.

Duan Jingzhi's beautiful eyes flashed and she said, "Could it be that the flute sound we heard just now came from here."

Lu Fanzhou pondered for a moment and said: "Looking at the surroundings, there are still signs of fighting. It should be that group of people who triggered a certain sound-killing mechanism."

As he spoke, he stretched out his hand on the wall and touched it again.

There was no blood on the arrows or on the stone wall.

It seems that this group of people escaped this mechanism.

It also shows that the abilities of these people are extraordinary.

Lu Fanzhou looked at the dark front and said, "Let's be careful and keep walking."

After walking for about ten minutes, the river became extremely narrow and could only accommodate one person.

Chongning seemed to have stepped on something. He picked it up and saw that it was a cigarette butt.

"Cigarette butts?" Duan Jingzhi saw it and said, "We don't have smokers here."

Lu Fanzhou and his party did not smoke at all.

Obviously, this cigarette butt was left by that group of people.

Chongning pinched it, and the cigarette butt was still warm, indicating that those people had not gone far.

You Lanfeng suddenly fell on the ground and sniffed the soil.

"There were at least ten people, they just left."

Chongning was a little surprised, "A dozen people, so many?"

The total number of Zeng Qianfan's group he met was only six.

Could it be that they are not in the same group?

The current situation has become confusing.

Everyone moved forward cautiously and walked for another quarter of an hour, finally reaching the end of the underground river.

The river bank ended abruptly, and there was no road ahead, only a dark cave wall.

The end here is a little different from the upstream.

There is another lake upstream.

The underground river here flows directly into it.

It's like a sharp sword thrust into the rock.

You Lanfeng lay down, sniffed again, and said, "They disappeared here."

It is surrounded by rocks and the top is very low.

Chongning checked around and found that there were no hidden doors in the rocks everywhere.

Obviously, there is only one way, and that is this underground river.

However, the river downstream is turbulent and flows extremely fast.

Without good water properties, it will definitely not work.

Lu Fanzhou pondered and said, "I, Lan Feng and Xuan Zhen, the three of us will go over and investigate."
To be continued...