Feeling the danger coming from the ground, Ye Feng's face became increasingly ugly.

Obviously, everything is just a superficial situation now. The real crisis has not been resolved. If the crisis is not resolved, even if they can gain the upper hand now and fight against the corpse tide, it will be of no use.

"What the hell is going on? The danger comes from the underground, but now the zombies and mice under the underground have been completely suppressed. Why do I still feel dangerous?" Ye Feng frowned into the word "Sichuan".

Suddenly, a flash of inspiration flashed in Ye Feng's mind. He seemed to have thought of something, and he couldn't help but slapped his head, "Why didn't I think of this?"

Ye Feng said, and immediately released his mental power again and explored below the ground.

Soon, the scene of the zombie and mouse digging out the tunnel appeared in Ye Feng's mind, but Ye Feng's mental power at this time did not pause at all, and he continued to explore downwards.

That's right, this is what Ye Feng guessed. These zombie mice usually only move about ten meters below the ground and will not continue to move downward. This will create a misunderstanding that these zombie mice will only move in this area.

Ye Feng was also caught up in this misunderstanding. However, the seismometer has greatly curbed these zombie mice, but it still felt dangerous. Ye Feng could only infer that the real layout of these zombie mice was even more underground.

His mental power continued to explore downwards, and soon exceeded 10 meters, 20 meters, 30 meters...50 meters. When he arrived at the 50 meters place, he felt the difficulty.

It is much more difficult to explore what is under the ground than to explore it on the ground, and the difficulty is at least ten times more.

Therefore, Ye Feng could have explored a place 500 meters away, but it was a bit difficult to explore it below the ground.

But of course Ye Feng would not give up, but immediately controlled his mental power to condense into a bunch, and continued to explore downwards in a single direction.

60 meters, 70 meters...100 meters, in a blink of an eye, Ye Feng's mental power found hundreds of meters deep. However, at such a depth, he still couldn't find anything, except soil and rocks.

But Ye Feng's mental power was approaching his limit again, which made him frown.

You know, it is already quite terrifying that it is hundreds of meters deep underground. It is difficult for ordinary drilling machines to reach this depth, and there are basically not many microorganisms.

Even Ye Feng began to doubt whether his guess was correct.

However, when he recalled the feeling of the mental power, he finally gritted his teeth and activated his mental power to operate at high speed with all his strength. He instantly entered an ethereal state.

The ethereal state is a special ability that Ye Feng naturally produces after his mental power reaches the limit of the human body. Ye Feng rarely uses this ability, but it does not mean that it is not strong. On the contrary, the ability produced by this human body after he reaches the limit is so powerful that it is terrifying.

Moreover, this ability also has a growth potential and can grow with your own growth.

At this time, after Ye Feng entered the ethereal state, it seemed that the whole world had slowed down, and his facial features were extremely sharp and his mental power was extremely active.

At this moment, Ye Feng had an illusion, as if he was the god of this world at this moment, and he could see through his eyes in one thought.

Of course, Ye Feng also knew that this was just his illusion, so he quickly calmed down, then activated his surge of mental power and continued to explore below.

Perhaps because of his ethereal state, under this special state, Ye Feng became more and more sensitive to danger. Not only could he be sure that the danger was coming from the ground, but he could even sense the approximate direction.

Ye Feng no longer hesitated at all, and his mental power suddenly explored in the direction he felt. He soon penetrated a hundred meters underground. Then he continued to explore downwards, 110 meters, 130 meters, 150 meters, 180 meters, and in a blink of an eye, Ye Feng's mental power descended nearly 200 meters.

At this level, his mental power was approaching the limit again, but in Ye Feng's perception, he was very close to the danger.

"Fight!" Ye Feng gritted his teeth hard, urging his mental power to the limit, and a burst of pain suddenly came to his mind.

Under such pain, Ye Feng's mental power continued to extend downward, 201 meters, 203 meters, and 205 meters. Finally, when Ye Feng's mental power found a depth of 210 meters, he suddenly felt the resistance in front of him disappear instantly.

And his mental power entered an empty place.

At first glance, it looks like an extremely huge cave, at least twenty or thirty football fields, and the height is about 50 meters.

Of course, if it is just that, it's nothing, but the problem is that in this extremely huge cave underground, there are dense zombie mice still digging this cave, and the number is at least over 100 million.

After discovering this scene, Ye Feng's face changed drastically. He finally knew what the other party wanted to do. If he hadn't discovered it in advance, he might have been able to escape the fate of being destroyed after the other party's plan was successful, let alone Yunqing City base, even the entire human revival coalition forces would not be able to escape the fate of being destroyed.

Just as Ye Feng wanted to thoroughly explore the cave and learn more about it, he felt a dizzy coming from his mind, and he instantly withdrew from the ethereal state. Even the released mental power was not controlled and he retracted back to his mind.

Ye Feng knew that this was caused by excessive mental power consumption. Although he had been exploring for less than 20 seconds, the huge amount of mental power in his mind was almost exhausted.

When the mental power returned, Ye Feng's eyes turned dark and he almost fainted, but the reason in his mind told him that he would never faint at this time.

He forced a bite of the tip of his tongue. Under the stimulation of the pain, Ye Feng was vigorously cheered up, took out a bottle of blue liquid from the evolution box, pulled out the bottle cap and drank it directly.

As this blue liquid entered the throat, a cool feeling surged into my mind, and a lot of dizziness was relieved.

This immediate effect made Ye Feng feel secretly that the drug to restore mental power researched by the Chinese Academy of Sciences is indeed very powerful.

After taking a breath, Ye Feng didn't bother to continue recovering, but forced himself to stand up, opened the curtain of the tent and walked out.

At this time, the birds and zombies outside had dispersed, and the speed of zombies attack outside the city wall slowed down. In addition, the problem of harassment by zombies and rats was solved, all the soldiers had smiles on their faces.

These people gathered together in groups of three or two and talked, and from time to time, hearty laughter came out.

Xu Youcai and several senior executives also gathered together to talk. Seeing the situation at the base improve instantly, they also had smiles on their faces.

However, during the conversation, they would glance here from time to time, wondering why Ye Feng hadn't come out now.
Chapter completed!