"Brother Hei, how long is this underground water vein?"

"I don't know, we have sent people down to explore. The longest time is about 100 kilometers. There is no road, so we don't go any further."

"More than 100 kilometers, are there any waterway maps?"

"Yes, of course there is. We are going upwards along the direction of the water flow, wanting to find the source of the water vein, and check what is going on and why the water vein is constantly decreasing, but it's like a maze. People who enter get lost several times and encounter several supernatural events. After hitting there, no one dares to explore this water vein again!"

"What is the description of supernatural events?"

"It seems that I always feel that someone is following me, but I can't see people. I've also thrown things, food, clothes, and even weapons, but no one can see how they throw them..."

"This is a bit like a ghost!" Mu Feng couldn't help but mutter. They had encountered it under the big crack. He also used the seed source to devour a ghost king.

It is hard to say what is happening below. It is normal for a few ghosts to be nurtured over the past tens of millions of years.

"What?"

"Nothing, you keep talking."

"What did I say? You didn't ask?" Hei Tong gave Mu Feng a white look.

"Give me all the information you have in your hands over the years about the groundwater veins and I'll study it." Mu Feng ordered.

The battle between the coalition forces and the Yu tribe has entered a stalemate. Although the Yu tribe has a large space warship of 200,000 tons, such space warships cannot dock on a planet like Kawa Star without a space homeport!

If it comes down, it will be difficult to fly up again!

This has become a huge factor that restricts the Yu tribe fleet from exerting its powerful combat power.

It is precisely because of this reason that the Kawaxing Alliance was able to maintain the current stalemate between the ground troops landed by the Yu clan.

If the large space warships of the Yu tribe come down, they can't stand it with the defense facilities on the Kawa Star.

Of course, if it really reaches that point, it will be a death-death battle and a nuclear bomb will be used!

Even if a large space warship can withstand nuclear bomb attacks, once or twice, what if it is a saturated attack?

Mu Feng released a nuclear bomb in Fancheng, not only to deal with Lei Xiong, the innate master, but also a warning. Don’t force me to be too anxious. If I force me to be too anxious, I will die together.

With the influx of population in Heiyao City, resources are consumed rapidly, especially water resources, and the amount consumed every day is ten times more than usual.

In this way, Mu Feng handed over the command work to Lang Jason and Shen Yaqin, and he and his people started looking for water.

Of course, some water resources in the secret realm can be produced, but far water cannot quench near thirst, so I can also find a way from Hei Yao City itself.

The groundwater veins became the only hope.

If the groundwater veins recovered a hundred years ago, this problem will naturally be solved.

But it is not easy to restore the groundwater veins. Has the head of Heiyao City not thought about it in the past few hundred years, but none of them failed.

Hei Tong himself tried it, but failed. He did not encounter any supernatural events, but he just failed to find the source of the groundwater veins.

Mu Feng had the experience of going down the underground river below the Dadi Cave, and he still remembered the underground river. Later, due to their mission, it was impossible for him to continue to investigate along the underground river, which was also a great regret.

This time, I went upward along the water flow and wanted to find the reason for the decrease in water resources at the source. It is more challenging than going downstream.

Therefore, this time I made a lot of and sufficient preparations, at least much better than the last time's haste, and it was in that bad situation again.

This time, I didn't bring much. Except for Hei Tong and his two subordinates, Mu Feng brought She Hu and another student who was good at river surveying and mapping, a total of six people.

It has been three days since I entered the groundwater vein and followed the direction of the water flow retrograde.

"Mu Team, the water quality and hardness here are significantly higher than those downstream, which may be related to the rock minerals here, and the water flow here is relatively slow..."

"There is an undercurrent under the water. I just went down. The water here is very deep. Conservatively, it must be hundreds of meters."

"There is an undercurrent underwater, and it is very likely that there will be a dark layer or a diversion!"

"Well, it's possible. I'll go down and see. You guys stay here and don't move!" Mu Feng said, and jumped into the water.

It was very dark under the water, but they brought diving lights, which could shine forty or fifty meters under the water. The water quality here was very thorough and there was almost no pollution.

There are indeed vortexes under the water, but how the vortex is formed, Mu Feng figured it out for a moment, but what kind of suction is produced in the vortex? If he does not master the water control technique, he can be directly sucked in.

A high-strength wire rope was tied around his waist, and Mu Feng tried to approach the vortex, and a powerful suction force dragged him slowly into the center of the vortex.

Go in little by little!

Suddenly, his eyes turned dark, and Mu Feng felt as if he had penetrated something, a bit like he was entering the entrance to the secret realm.

Could it be...

It's still in the water, but the water here seems to be different from the water in the groundwater veins just now.

The visibility is a bit low and turbid. As soon as it moves, there is still mud rising...

There is no silt under the groundwater veins.

The wire rope around the waist is still there.

Feeling the water pressure on his body, Mu Feng felt something was wrong. It was definitely not in the groundwater veins. The wire rope was long enough. Mu Feng went down the water pressure became lighter and lighter.

This should be going up.

Ten minutes, twenty minutes...

"call……"

Mu Feng breathed heavily, and when he opened his eyes, the scenery in front of him was shocked. This was a pool of water, with shimmering waves and silent, like a pool of stagnant water.

I looked up at the sky and it was gray. This was definitely not on Kava Star.

The surrounding mountains are covered with green and shadows. Occasionally, you can hear a few roars of ferocious beasts. In the sky, a wild mountain eagle flew past and saw the Mu Feng in the pool. A hint of curiosity clearly showed in his eyes.

Several Gundam figures rushed over. Mu Feng looked at them and saw several monkeys, with red hair, like balls of fire.

This is a ferocious beast called Fire Ape. Adults have at least eighth stages of combat power in humans. If it is Fire Ape King, there is probably no problem in fighting against innate masters.

Moreover, apes and other animals are all ferocious beasts living in groups. If you provoke one, you will be like provoking the entire clan. Therefore, it is better not to provoke such ferocious beasts.

This place should be the secret realm. Unexpectedly, the underground water veins can also secretly connect to the secret realm, and those vortexes are the entrance to the secret realm.

Can people come in? Can water come in?

Could it be that the reason for the decrease in groundwater veins is related to the secret realm?

But how to solve this problem? What can be used to block those vortexes?

Mu Feng was afraid of She Hu, and Hei Tong and the others were worried, so they decided to return first. With the wire rope, it was not difficult to find the way. The speed of going back was faster than when they came.

After waiting for more than an hour, Mu Feng had not moved when he entered the vortex. Although the wire rope could still send tension, such waiting was indeed a bit tormenting.

They are all water-like, but no one has the ability to control water by Mu Feng.

"Look, come up, come up..."

A bubble emerged from the water, and then Mu Feng rushed up like a big black fish in an almost vertical posture.

Crazy...

It is easy to get in, but it is difficult to get out. This vortex is a downward force. Mu Feng not only has to resist the water pressure, but also has to resist the suction of the vortex. After ordinary people go down, it is really difficult to get up from here. He took a lot of effort and took a breath before rushing up.

If I do it again, I'm afraid I won't have the strength.

"Captain Mu, brother-in-law..." She Hu and Hei Tong handed the towel and the water one by one, which was so attentive.

"I think I found the reason for the decrease in water veins and water resources, but..." Mu Feng said, suddenly remembering how he explained to them.

"But what?"

"But even if the cause is found, it may not be able to solve it." Mu Feng lamented. This plug-in of the loophole is easy to say, but it is difficult to sit up.

"Brother-in-law, why do you think of a reason? Let's all think of a solution?"

"This underwater vortex actually connects to the secret realm, and our water flows to the secret realm." Mu Feng explained, "It is difficult to enter the vortex, so how can you bet?"

"What..." She Hu and Hei Tong were both stunned when they heard this.

"However, this hole is not big, it should not be the main reason. Even if this hole is blocked, it may not have much effect..." Mu Feng analyzed carefully.

"What should we do now? Should we go back and find a way, or continue walking forward?"

"Walking forward, haven't you encountered any supernatural time yet?" Mu Feng took a break and basically recovered his strength.

"Okay, then keep going."

The team continued to set out along the underground river. It was really difficult for him to understand this kind of thing, but it did happen in front of him. In two different spaces, this strange phenomenon of mutual exchange occurred.

He even speculated that the harsh natural environment on Kawa Star could be due to the secret realm. Scientists have studied the location of Kawa Star and believed that it should not be like this.

But it just looks like this, and there is no explanation.

I continued to move forward and walked for another day, and I was still in danger of passing through several holes. If I hadn’t been well prepared and everyone’s cultivation was not weak, I would have been unable to continue.

"Brother-in-law, we have almost walked halfway now. According to records, the next road will become more and more difficult, and there may be supernatural events." Hei Tong said.

This road has marks left by predecessors, so it is not too difficult to get here, but the more you go, the harder you are to go, which is obviously inevitable.

"Tiger, why are you kicking me?"

"Have I kicked you?" She Hu was confused, "I'm at least seven or eight feet behind!"

"Is that true?" Hei Tong turned around and didn't care.
To be continued...