With the order to launch was given.

Four medium-sized missiles loaded with thermobaric bombs were instantly ignited and lifted into the air.

Previously, Ye Feng had already let the mutant goshawk empty the mutant birds in this area, so as to prevent any mutant bird that did not know whether it was alive or dead from crashing into the missile and detonating it in advance.

At this time, Ye Feng and the others had already retreated to an open field 1 km away from the forbidden area.

The view here is very good, they can see 4 missiles soaring into the sky, after adjusting their flight attitude in the air, they began to fall rapidly, straight towards the 4 corners of Xiaofeng Mountain.

Boom Boom!

Before the warhead was about to hit the mountain, it exploded in the air, which is an oxygen-free explosion that instantly disperses various metal powders contained in the warhead into the air.

In the next moment, the high explosive and various metal powders diffused into the air ignited, forming a second explosion and producing a terrifying thermal effect and high-pressure effect.

Of course, it was slow to say, but all of this happened in an instant, and what Ye Feng and the others saw was 4 small mushroom clouds, rising from the four directions of Xiaofeng Mountain, southeast, northwest, and north.

The shock wave of the explosion instantly turned the charred tree trunks around it into powder, and the hard rock cracked and shattered, and was carried by the shock wave, continuing to crash in all directions.

Even the mountains of Xiaofeng Mountain are shaking violently.

The shock wave swept directly across the entire forbidden area, and then rushed towards the mountain forest outside, and a large number of trees were instantly broken.

Even Ye Feng and the others, who were standing 1 kilometer away, could feel the horror of this shock wave, ordinary people like Bai Yinghui and Zhang Ji, if it weren't for Ye Feng spreading his wings and blocking the shock wave a little, it was estimated that they would be injured.

"It's really exciting." Zhang Ji said after barely standing still.

It was also the first time that he felt the power of a thermobaric bomb explosion at such a close distance.

Bai Yinghui on the side, after standing firm, immediately looked at the mutant parrot.

But at this time, Ye Feng had already switched to the body of the big yellow dog.

The big dog did not retreat with the crowd, it dug a 10-meter-deep dog hole directly at the edge of the restricted area.

And Ye Feng also gave the other party a life fruit in advance, and all this is for now.

Before the aftermath of the explosion had fully passed, the big yellow dog rushed out of the dog hole and rushed straight into the restricted area.

"Huh!"

As soon as he entered, Ye Feng discovered that there was a different place.

The corrosive energy here is at least half thinner than before.

You must know that this edge position is not within the core explosion range of the thermobaric bomb, and it stands to reason that the corrosive energy should not be weakened.

But now the only explanation for this situation is that it is affected by the explosion in the core area.

Thinking of these Ye Feng, he looked forward to it more and more, his pace quickened, and he continued to rush inside, and at the same time, his perception was fully open, carefully sensing the changes in the forbidden area.

"This works fine!" When Ye Feng rushed into the explosion range of one of the thermobaric bombs, he found that it was clean, and there was not a trace of corrosive energy left.

He controlled the big yellow dog to stretch out his paws and dig into the ground, digging until he was five meters deep underground, before he sensed the existence of corrosive energy.

"Not bad! It worked even better than I expected. Ye Feng's eyes were bright.

It was only at this point that the remaining corrosive energy, as if it had only reacted, began to quickly retract to the ground.

Ye Feng's eyes narrowed slightly.

He doesn't believe in the forbidden area, and there will be a sluggish reaction, so the only explanation is that the unknown existence under the ground has a relatively weak control over the entire forbidden area.

There can even be a perceptual delay.

All kinds of thoughts flashed through Ye Feng's mind, and soon he made a decision, controlling the big yellow dog to dig frantically and digging down quickly, to see if he could take this opportunity to go to the core forbidden area underground.

Ye Feng quickly dug in, 10 meters below the ground, and at this time, he could already feel the thin corrosive energy.

He didn't stop, but continued to dig down, but from this position, almost every next meter, the concentration of corrosive energy was nearly 10 times higher than outside.

When he dug 20 meters below, the concentration of corrosive energy here was already 100 times that of the outside.

"Still no! The corrosion concentration in this core area shows no signs of decreasing at all. Ye Feng was forced to stop.

Although it was a little disappointing, it was not frustrating, and in any case, the results of this shelling of the restricted area were quite remarkable.

Soon Ye Feng gave the order to the big yellow dog to return, and he re-possessed the state and switched to the mutant parrot.

As soon as he turned his head, he saw Bai Yinghui and Zhang Ji, who were staring at him with burning eyes.

"Rest assured, everything went well! The effect was even better than we expected, and even the corrosive energy within 5 meters of the ground was eliminated. ”

"And the energy in the ground is much richer than that on the ground, so I feel that the corrosion energy eliminated by these 4 thermobaric bombs is even more than the total amount of corrosion energy diffused on the ground." Ye Feng said with a smile.

Hearing this, the two couldn't help but clench their fists excitedly.

Zhang Ji was the first to inform the whole army of the news, and in an instant, cheers rang out all around Xiaofeng Mountain.

"The next thing is to see the reaction of the penalty area, I don't know how it will respond." Bai Yinghui looked at Xiao Fengshan, who was already "slim", and said.

"No matter what, the soldiers will block, the water and the soil will cover it, no matter how the other party responds, as long as the thermobaric bomb has an effect, it can delay its expansion speed, now it just depends on the effect of delay." Ye Feng said with a smile.

Anyway, after just seeing the effect of the thermobaric bomb, he really didn't worry too much.

Bai Yinghui nodded, but there was still worry on his face, because the direction he was considering was completely different from Ye Feng's.

Ye Feng is very confident in himself, as long as he is given time to grow up, even if the existence in the forbidden area really comes out, he can not be afraid.

But Bai Yinghui is thinking about how to kill the other party before it comes out.

After all, no matter how you look at it, now should be the time when the other party is the weakest, don't get him now, when to get him.

In the blink of an eye, half an hour had passed.

"There hasn't been any movement yet, which proves that the other party has really suffered a lot of damage!" Ye Feng said with a smile.

Bai Yinghui nodded, also quite agreeing with this opinion.

Then the crowd continued to wait.

Of course, during this process, Ye Feng would occasionally switch the resurrection state back to the main body.

After all, it is impossible for him to spend all the time here, harvesting aura every hour, this kind of thing is impossible to fall, otherwise there will be more than 7,000 less aura in an hour, and he can die of distress.

The two sides waited for two hours before corrosive energy gradually emerged.

"Huh!" Ye Feng sighed lightly.

"What's wrong?" Bai Yinghui hurriedly asked.

Ye Feng didn't answer immediately, but controlled the mutant parrot to fly into the sky and spun around.

After returning, he immediately said: "In the restricted area, only half of the area, corrosive energy appeared. ”

"Only half? Is there a certain area where there is a particularly large amount of corrosive energy gathered? Bai Yinghui frowned and asked.

"No, the corrosive energy that appears is evenly distributed throughout the forbidden area, and it is obvious that it is afraid of being blown up, and this method is used to reduce the damage."

"But in this case, the speed of the expansion of the forbidden area will also be reduced by half, what are you going to do? Do you want to continue to blow up? Ye Feng asked.

It used to expand 240 meters in one day, but now it has been reduced to 120 meters, and it only expanded 3.6 kilometers in that month.

It would take at least two months for the exclusion zone to expand to the Sunset Valley, and he felt perfectly acceptable.

Of course, if the military is willing to throw more thermobaric bombs, it is of course the best, but he doesn't know how much of this killer weapon the military has, so it is not easy to help the other party make a decision.

Bai Yinghui didn't hesitate, then nodded and said: "Of course, continue to bomb, the scope of going in now is not large, and the effect of continuing to bomb will definitely be better than in the future." ”

"Now 4 thermobaric bombs can cover 70% of the restricted area, but if you wait for a month, I'm afraid it will take 40 thermobaric bombs to cover such a huge area."

Ye Feng naturally understood this truth, he nodded and said, "Okay!" Then you keep bombing, but I want to remind you that you must reserve enough thermobaric bombs, otherwise it will expand in full force when the restricted area finds out that you are no longer bombing. ”

Bai Yinghui smiled and said, "You can rest assured about this, I am very concerned about this matter, so I will fully support it." ”

Next, Bai Yinghui ordered four more thermobaric bombs to be fired.

The corrosive energy that permeated the forbidden area was once again dissipated by more than half.

But this time, only 10 minutes later, the corrosive energy came to the fore on the side of the forbidden area.

However, the amount of corrosion energy has been reduced to one-third of the original amount.

"Do you want to blow it up?" After Ye Feng explained the situation for a while, he couldn't help but ask.

"Of course!" Bai Yinghui said a word, and let the artillery troops continue to prepare.

It is worth mentioning that during this period of time, Bai Yinghui transferred another 10 missile vehicles from Yangcheng City to ensure that there were sufficient ammunition reserves on the side of the forbidden area.

With another round of bombardment, the corrosive energy that appeared again on the side of the forbidden area had been reduced to a quarter of its original size.

But Bai Yinghui still did not intend to end, but continued to order the bombing.

It was not until the density of the corrosive energy dropped to one-fifth of its original size that it stopped.

Seeing this scene in front of him, Ye Feng was a little distressed, to be honest, he felt that it was completely unnecessary.

If it were him, when the corrosive energy in the forbidden area was reduced to one-third of its original density, it would almost stop.

Because this kind of bombing is not a one-time thing, don't look at Bai Yinghui's several rounds of bombing, so that only one-fifth of the corrosive energy in the forbidden area dares to emerge, but it is impossible for the other party to maintain such a small amount of corrosive energy all the time.

If you don't continue to bomb, then as time goes on, the other side will definitely slowly test and increase the concentration of corrosive energy.

If you want to maintain such a low concentration of corrosive energy, you need to keep exploding.

In this case, the amount of thermobaric bombs consumed every day will be terrifying.

The puzzlement in his heart, Ye Feng didn't hold back, and asked directly: "Is it really worth it for you to do this?" You blow it up like this, and you can't destroy it, so it's better to leave some thermobaric bombs behind. ”

"If the existence inside comes out, you save up a few hundred thermobaric bombs and blast them over in a wave, maybe the effect will be better."

Bai Yinghui smiled, and he didn't hide it and said, "The order I received is to curb the expansion of the forbidden area as much as possible. As for you saying that there is no way to destroy it, I don't think so. ”

"Huh?" Ye Feng was a little puzzled.

He really couldn't imagine what the other party was going to do.

"According to the information you provided, the core of the forbidden area is hidden in the ground, and the further down you go, the greater the concentration of corrosive energy, even up to 100 times, right?" Bai Yinghui said.

"Well, yes." Ye Feng nodded.

"Did you know that we humans have a weapon called a ground-penetrating bullet?" Bai Yinghui said with a smile.

Ye Feng's pupils shrank slightly, "What do you mean?" ”

"It's what you think, of course you want to make the ground-penetrating bomb produce a high temperature of more than 3,000 degrees when it explodes, and it will definitely need to be improved, which will take time."

"So what I have to do now is to curb the expansion of the exclusion zone and keep it in this 'weak' state, so that it can be easier to destroy when the time comes." Bai Yinghui did not hide it, and directly said the plan.

On the one hand, they are allies with the Dragon King Palace, and now they have a common enemy, so there is no need to hide this. On the other hand, it is also to show the strength of human beings, so as not to be underestimated by the other party.

In the end, Ye Feng just held back two words: "Admire!" ”

When the sun is about to go down.

Ye Feng did not continue to stay in the forbidden area.

He only left the mutant wolf king to help observe the concentration of corrosive energy in the forbidden area, and reported it to Bai Yinghui at any time.

Next, as long as the forbidden area is bombed every 2~3 hours, the concentration of corrosive energy can not be increased.

As for Ye Feng, he shifted his attention back to his contract animal.

To be precise, it is the mutated African elephant, the mutated hippopotamus, the mutated white rhinoceros, the mutated Siberian tiger, the mutated Asiatic lion, the mutated brown bear, the mutated giant panda, the mutated jaguar, and the mutant honey badger, which are the last batch of mutant animals.

Because with his continuous injection of aura, these mutant animals have all reached the peak of the second order, and now that they calculate the time, it is estimated that they will reach the bottleneck of breakthrough.

This will mean that he will soon have another group of powerful third-order subordinates.

Compared to this, of course. What Ye Feng is more concerned about is which mutated animals can break the mirror on their own.

He has gradually discovered that with the continuous improvement of the realm, mutated creatures like the mutant king cobra that can break the mirror on their own will have more and more advantages.

I'm afraid that in the future, the only ones who can really help themselves against strong enemies are these mutated creatures that can break the mirror on their own.

When the time came to eight o'clock in the evening.

In Ye Feng's nervous and expectant waiting, the giant panda that was summoned back by Ye Feng from Yang City took the lead in lying on the ground, and the breath of breakthrough rose from his body.

(End of chapter)