Global Catastrophe: I Became the World Tree

Xiaofeng Mountain.

It was really quiet here at this time, and there wasn't even an insect in the surrounding woods.

One kilometer away from Xiaofeng Mountain, a blockade has been formed here, and mutant creatures are patrolling here.

In particular, the mutant fire ants and mutant bumblebees are the most important patrol forces.

Because there are enough of them, after discovering the remaining mutant creatures, they can immediately notify the queen bee or ant queen in a special way, and then Ye Feng will know and send the other mutant creatures to deal with them.

At this time, this blockade is still expanding outwards.

But the further out the blockade goes, the more places need to be defended. According to Ye Feng's estimation, when the blockade extends to 5 kilometers, it will not be able to completely block it.

This is why he was anxious to explore this restricted area as soon as he broke through.

At this time, on a flat land one kilometer away from Xiaofeng Mountain, mutated king cobras, mutated goshawks, as well as the big yellow dogs and mutated buffaloes that had just arrived gathered here.

At this time, a fruit basket woven with rattan hung around the big yellow dog's neck.

Sure enough, there were 10 life fruits in it, half big and half small.

The large life fruit was formed by Ye Feng condensing 1,000 points of spiritual energy and biological energy. The vitality contained in it can quickly recover a seriously injured third-level mutated creature.

He temporarily named it the third-level life fruit.

As for the two smaller ones, they were formed by Ye Feng condensing 300 points of spiritual energy and biological energy. The vitality contained in them can allow a second-level mutated creature to recover quickly.

"Hopefully my vision will come true."

At this time, Ye Feng was possessed by the mutated buffalo. Following his order, a second-level mutated buffalo slowly walked out.

He was not willing to try dangerous things like testing restricted areas with his contracted animals, so their subordinates were undoubtedly the best test subjects.

Among all animals, in terms of defensive strength alone, the mutant buffalo is definitely one of the best. The only ones with stronger defenses at the same level are white rhinoceros, hippopotamus and elephants.

But these mutated creatures brought out from the zoo are very precious, and Ye Feng is certainly not willing to use them as cannon fodder.

As the mutated buffalo came out, Ye Feng thought for a moment to be on the safe side, took out the level three life fruit and threw it to the opponent.

The second-level mutated buffalo got the signal and swallowed the life fruit in one gulp.

As the Life Fruit was consumed, the aura of the mutated buffalo became stronger.

Then under Ye Feng's order, the second-level mutated buffalo began to approach the restricted area. The mutated king cobra and mutated goshawk also immediately followed, making it easier for Ye Feng to switch to the possessed state at any time and observe the situation inside.

When the second-level mutated buffalo approached 300 meters away from Xiaofeng Mountain, it began to hesitate and refused to step forward.

Obviously, with the second-order mutated buffalo's sense of danger, he has already noticed that there is a great danger ahead.

In fact, the loyalty of the subordinates of these contracted animals is very average. They only surrendered due to the strong intimidation of their own kind.

It's fine at ordinary times, but when your life is really in danger, how can you still obey orders?

But Ye Feng couldn't help it at this time. The third-level mutated buffalo staring next to him suddenly let out a mooing cry.

At the same time, the mutant king cobra, mutant goshawk, and big yellow dog all erupted in deterrence, locking the second-level mutant buffalo.

Feeling the fatal threat coming from behind, the mutated buffalo no longer hesitated, stamped hard on the ground and rushed directly into the restricted area.

Almost instantly, the strange energy in the restricted area enveloped the mutant buffalo.

That weird energy seems to be quite terrifyingly corrosive.

The surface of the mutated buffalo's skin immediately began to fester, and its aura began to decline.

But at this time, a surge of life force surged out of its body, and it began to quickly repair the ulcerated skin on its body. The descending aura of the mutated buffalo also stabilized instantly.

Seeing this scene, Ye Feng felt happy.

Sure enough, the power of life can offset that weird energy.

In this case, he truly has the foundation to explore the restricted area.

Of course, it's just the basics. Ye Feng doesn't think that the only danger in the restricted area is this weird energy.

Moreover, the life force in the mutated buffalo is limited, and it is impossible to help him recover all the time, so if you really want to explore the restricted area, all these factors must be taken into consideration.

Next, Ye Feng let the mutated buffalo stay at the edge of the restricted area. The first thing he wanted to test was how long the third-level life fruit could keep the mutated buffalo inside.

It didn't take long for Ye Feng to get the answer he wanted.

ten minutes!

In just ten minutes, the life force in the mutated buffalo's body was exhausted, and its skin was rapidly festering.

At this time, without Ye Feng's orders, the mutated buffalo rushed out crazily.

Because it stayed on the edge, it escaped successfully, but even so, half of the skin on its body was already ulcerated and pus-filled.

Ye Feng was not stingy and directly threw a second-level life fruit to the opponent, allowing him to recover quickly.

"This is equivalent to spending 1,000 points of spiritual energy to resist if you stay there for 10 minutes. Although the consumption is a bit exaggerated, it is still within my tolerance."

Ye Feng thought quickly in his mind, but he still did not act rashly, but carried out the next round of tests.

Next he will conduct a set of comparative tests.

He directly called for another second-level mutant buffalo, and also a second-level mutant sparrow.

Let them take the second-level life fruit, and then enter the restricted area together.

By comparing the two, he can know whether his own defense is resistant to these strange energies.

Soon the mutated buffalo and mutated sparrow were driven in.

The life power contained in the second-level life fruit is limited, so this time the mutated buffalo only lasted for 3 minutes before escaping from the restricted area.

This was within Ye Feng's expectation.

But the weaker mutant sparrow is still inside.

And it wasn't until the 9th minute that the life force in the opponent's body was exhausted and he escaped.

Seeing this scene, Ye Feng was a little confused and had no idea what was going on.

"The weaker the defense, the longer the resistance will be?"

This is not reasonable at all, and Ye Feng always feels that something is wrong.

He closed his eyes and began to remember.

After possessing mental power, Ye Feng's memory has also been greatly enhanced. What just happened flashed through his mind like a slideshow.

After a while, Ye Feng opened his eyes, his eyes bright.

Then he repeated the test.

This time, when the second-level mutated buffalo and mutated sparrow entered, Ye Feng switched the possessed state to the mutated goshawk.

Every detail of the mutated buffalo and mutated sparrow, eroded by the strange energy, was clearly seen by him.

With his vision greatly enhanced, Ye Feng could clearly discover that the skin of the mutated sparrow eroded almost twice as fast as that of the mutated buffalo.

This is consistent with his guess. The stronger the defense of the mutated creature, the stronger its resistance will be when faced with this weird energy.

The reason why the mutated sparrow can persist longer than the mutated buffalo is entirely because it is smaller and is exposed to less weird energy.

If the two were the same size, the mutant sparrow would definitely be the first to be unable to hold on.

And such a discovery is naturally useful to Ye Feng.

Originally, according to Ye Feng's plan, he planned to send the mutant buffalo with the strongest defense to explore the restricted area.

But now he feels that it would be better to change to a big yellow dog.

After all, the big yellow dog is small and can last longer. In addition, it is the fastest among its subordinates. Even if it is really in danger, it has a greater chance of escaping.

Moreover, the dog's sense of smell, vision, and hearing are better than those of the mutated buffalo, which naturally makes it easier for Ye Feng to search.

After deciding on the plan, Ye Feng quickly took action.

He asked the big yellow dog to eat a third-level life fruit first, while the dog also had one in its mouth, just in case.

After doing all this, Ye Feng switched the possessed state to the big yellow dog, and with a scurry of his body, he entered the restricted area.

Soon he felt that the restricted area was filled with strange energy.

When he came in, these strange energies immediately attached themselves. It was extremely corrosive, like strong sulfuric acid.

Even though the big yellow dog has reached the third level, its defense is not strong, and the skin on its body began to fester instantly.

This was Ye Feng's first direct contact with this kind of energy, "Is this weird energy? It's so corrosive, I might as well call you corrosive energy."

At this time, as the body is injured, the life force contained in the body will automatically flow to the wound for repair.

Ye Feng did not move, but stood quietly and felt it for a moment. He soon deduced that with the corrosion rate of these energies, the life force in his body could sustain it for at least half an hour.

If you include the life fruit in his mouth, he can stay in this restricted area for a full hour.

"That's great. Then I don't have to worry. I hope I can gain some useful information from this exploration." Ye Feng murmured while controlling the big yellow dog to move forward.

But after only 100 meters, he stopped.

"Why has the concentration of corrosive energy increased? And in such a short distance, it actually increased by about 10%."

Ye Feng continued to walk forward and found that as he continued to advance, the concentration of corrosive energy was also increasing.

This made him secretly frightened. It was completely conceivable how high the concentration of corrosive energy would be if he reached the center of this restricted area.

Ye Feng was thinking about these things as he moved forward, but at this time, his pace couldn't help but slow down.

He was really afraid that if he suddenly broke into a place with extremely high corrosive energy, the big yellow dog would die instantly.

After all, such a weird place has appeared, and it is normal for some incomprehensible and dangerous situations to occur here.

Soon Ye Feng arrived at the foot of Xiaofeng Mountain.

Then with some trepidation, he began to climb the mountain.

But just a short distance ahead, he stopped again.

"Why is the concentration of corrosive energy decreasing instead of increasing?"

Ye Feng walked back with some doubts and found that it was not that he felt wrong, it was indeed the case.

Then he quickly went up the mountain.

It was soon discovered that the concentration of corrosive energy decreased the closer to the top of the mountain.

After Ye Feng thought for a moment, he returned to the foot of the mountain.

This time he did not climb the mountain, but used his forelimbs to dig into the soil crazily.

Although the big yellow dog is not good at strength, as a third-level mutant creature, its strength has reached at least two tons. Every time its feet move, it can bring out a large amount of soil.

A dog hole formed quickly, and Ye Feng did not stop. The dog hole continued to extend inside.

"Just as I thought, the spiritual energy concentration has indeed increased."

"In other words, the source of this corrosive energy is inside Xiaofeng Mountain... Hey, that's not right!"

When a huge rock appeared in front of him, Ye Feng slightly changed the direction of digging and immediately discovered that as he dug downward, the concentration of spiritual energy increased sharply.

After a little comparison, Ye Feng confirmed that the source of corrosive energy was underground.

He immediately changed the direction of his excavation and headed underground.

Ten minutes passed in the blink of an eye, and Ye Feng had dug to a depth of 100 meters underground.

The corrosive energy here is 10 times more intense than in the outer areas.

The big yellow dog has already taken the second life fruit, and has consumed most of it.

"No, I can hold on for another 3 minutes at most, but I don't know how far away from the source it is." Finally, Ye Feng sighed softly and began to control the big yellow dog to return.

However, this trip was not without success. At least he had a deeper understanding of these corrosive energies.

And the next step is how to deal with it.

But the current situation is obviously impossible to solve by relying on his personal ability alone.

So he had already planned to inform the military about the news in the restricted area.

…

At this time, the sky was completely dark.

Although it only took one day, with all the construction power used in the entire Yangcheng City, a full 30 kilometers of defensive walls had been completed and the foundation construction had been completed.

Laying the foundation is the most difficult part. Once this step is completed, the subsequent construction is just a matter of filling in concrete and boulders according to the drawings.

At this time, Zhang Ji was leading a group of men from the Sixth Regiment to escort a full 200 dump trucks back.

"Secretary Cao, this is the last batch of huge rocks shipped today. It is enough for you to work tonight." Zhang Ji came to Cao Guangzhi and said.

Secretary-General Cao Guangzhi is one of the persons in charge of the defensive city wall construction project. His main job is to coordinate various departments and follow up on the purchase of various materials.

"It's been a lot of hard work, but the boulder raw materials are still a bit insufficient."

"The amount returned from mining needs to be increased by at least 20% on this basis to fill this gap. Can you rush to dig more tomorrow?" Cao Guangzhi asked quickly while registering.