Under the order of Lei Gen and the cover of Lei Hong, a quasi-planetary strong man from the Mechanical Spirit Tribe suddenly retreated quickly.

Retreating to the entrance of the Daxi tribe's base, this quasi-planet-level strongman from the Mechanical Spirit tribe directly swallowed a lot of source crystals and began to change his form, just like the very ancient Transformers of Blue Star.

But the transformed form is a bit beyond the normal scope.

In just two seconds, a human-shaped object turned into something like a tower crane that penetrated deep into the ground.

Two huge pendulum-like round weights hang from the top.

A fission clan quasi-planet also retreated to the transformed Mechanical Spirit clan quasi-planet at this moment, pushing the pair of pendulums with his own power!

boom!

A pair of pendulums first hit the tower hard, and occasionally the power of the fission clan merged into it.

A harsh sonic boom erupted.

But it's all within the tolerable range, and there doesn't seem to be any harm.

But there was a rumbling sound under the feet, and the entire base was roaring. The place that had been blasted by the three-phase thermal blast bomb had begun to slowly collapse!

boom!

The two swinging pendulums collided violently with the power of the fission quasi-planet.

The hammer bodies collided together, and a harsh sonic boom exploded. With the blessing of the fission family quasi-planet, the fission erupted and erupted with invisible sound waves.

In an instant, Xu Tui suddenly felt an inexplicable nausea, and his internal organs had a twisting feeling. He was very uncomfortable, and his head was also a little dizzy!

"Infrasonic Wave Field!"

"They want to completely destroy this place!"

Before Xu Tui could figure it out, Bram, a planet-level expert from the Daxi tribe, first exclaimed.

This made Xu Tui's body sense instantly adjust.

He knew about infrasonic waves. There were some students at the Huaxia University of Genetic Evolution who had opened the relevant genetic base points and gained the ability to infrasound waves, but it was extremely difficult to improve them.

The infrasonic ripple field only exists in records. Blue Star's technology cannot reproduce this phenomenon. It only records the place where the infrasonic ripple field was emitted. After the infrasonic ripple field ends, everything that happened in the place will be recorded.

powder!

Roughly speaking, the back-and-forth overlapping of infrasound waves continues to reverberate and strengthen, forming an infrasound ripple field, which can carry out devastating strikes.

However, the terrain restrictions are relatively large when used.

It won't work in an open place.

But now this ancient base of the Daxi tribe is absolutely possible.

"Is there any way to crack it?" Xu Tui asked.

If it is true that the infrasonic ripple field cannot be broken through, then we must escape from the ancient base of the Daxi tribe as soon as possible.

Otherwise, this ancient base of the Daxi tribe will become everyone’s graveyard!

"Yes, kill the source of the sound! But now..."

In this short moment, Lei Hong and others had already retreated to the entrance to the Daxi Clan's ancient base.

That is, above the infrasonic ripple field generator transformed by the Mechanical Spirit Clan, a large amount of source crystals are being put into it.

That position is also the only direction that the infrasound ripple field cannot affect.

If Bram rushes over at this moment, he will be surrounded by Lei Hong and another planet-level powerhouse. Not only will he be unable to destroy it, but he may also die on the spot!

At the entrance of the Daxi tribe's ancient base, two specially constructed pendulums, blessed by the fission tribe's quasi-planet, first bombarded the tower itself, and then the pair of pendulums collided fiercely together.

Xu Tui felt that the surrounding infrasound wave ripple field was continuously strengthening, and the discomfort became more and more severe, until he felt like vomiting.

Certain places have begun to collapse continuously, and even his mental induction has been greatly affected!

This is really... crushing!

If the Spirit Tribe had used such a method of total destruction as soon as they arrived, I'm afraid if Xu retreated from them, they wouldn't have survived this long!

Not only Xu Tui, but also planet-level Bram looked uncomfortable. Obviously, planet-level him was also affected, and the impact was not small.

"If...Lavis surrenders to you, then you must know the other exit of this base, right?" Bram suddenly looked at Xu Tui.

Their Daxi base has its own architectural rules, especially a base built underground. It is absolutely impossible to build a dead end and dig their own grave!

If that's the case, if there are enemies who can destroy this place, we can bury them without digging a grave!

Therefore, there must be a way out.

But very secretive!

There is at least one backup safety exit. This is the construction regulation of the Daxi Clan base. However, depending on the terrain and environment, the location of this safety exit will vary.

It is certain that there is an exit from this ancient base, but where it is, Bram doesn't know.

It also takes time to find it.

That's why Bram asked Xu Tui. This time, the sound wave field was not powerful enough, but the victory was long-lasting, and it was of a type that became increasingly fierce as the war progressed.

Xu Tui nodded.

This is also the fundamental reason why Xu Tui dares to stick to the ancient base of the Daxi tribe. If it is a dead end, if he is not careful, he will be stewed in a pot, and Xu Tui will not dare to defend it.

"Then withdraw together?"

Bram looked uncomfortable, and Xu Tui himself was also in the gradually strengthening infrasound ripple field, his face turned red, and his heart beat like a drum.

In this sonic ripple field, general defense methods, whether it is combat uniforms or diamond shields, have a certain defensive effect, but the defensive effect is very weak.

"Retreat together, but after we get out, we will face the full attack of the Eldar. Can you withstand it?" Xu Tui looked at Bram and said.

"Do you think the Eldar will let us go?" Bram sneered.

"Comrade?"

"Comrade!"

Xu Tui turned around cheerfully and ran towards another passage deep in the Daxi tribe's ancient base.

As for Cui Xi and the others, they had already rushed to the safe exit of the Daxi Clan's ancient base a minute ago.

I have to say that this time the sonic wave field seems boring, but the stamina is getting stronger and stronger. It’s a bit like red wine. It’s refreshing after drinking it, and you’ll get drunk after a while!

In just this minute, some members of the Tongtian Special Forces and Haotian Special Forces vomited blood one after another under the invisible attack of the infrasonic ripple field!

Xu Tui himself felt very uncomfortable.

After directly putting a layer of mental shield on the outside of the vajra shield, it was a little better.

In the ancient base, the place where the three-phase thermal explosive bomb was previously detonated has begun to collapse, and the alloy walls in the base have begun to slowly twist and deform.

If this continues for a long time, the base will inevitably be destroyed!

The safety exit of the ancient base of the Daxi tribe is very concealed. It is on the wall of a passage. After opening it, there is an invisible mechanical warehouse. When the mechanical warehouse opens another wall, a long passage appears.

However, this safety passage is designed to be very wide and should be used as the main evacuation passage.

Not to mention fighter planes, even supply ships can pass through.

A few hours ago, after Xu Tui obtained the safe passage information from Lavis and found it, he transported fighter planes and supply ships into the passage.

Therefore, the evacuation was very fast.

With the safety doors of the passageways closed, the influence of the infrasound ripple field is much smaller. Unfortunately, there is no control over this base.

If the control of this base operates normally, lowering a dozen safety isolation doors in the middle can reduce at least half or even most of the power of the sonic ripple field!

There will be no threat anytime soon!

"You go out first!"

Xu Tui politely asked Bram to retreat outside the passage first. Xu Tui himself, Ruan Da, and Orona each maintained their maximum defense, holding a three-phase thermal explosive bomb in their arms, and followed closely.

Around Bram.

In their hands, they were still clutching their life-saving cards.

This scene made the members of the three major special operations groups burst into tears and excited.

This is the safe evacuation channel that the group leaders risked their lives to build for them!

Ruanda and Orona had troubles that they couldn't tell. They were not unwilling to do this, but they were not too willing either.

Bram looked depressed.

This is the... plastic love between him and his comrade Xu Tui...

Xu Tui had no choice. If Xu Tui completely believed the words of an alien species, he would be a fool.

What should I do if they rush out of the safe passage and then seal the safe passage, completely suffocating Xu Tui and the others to death in the Daxi Clan's ancient base?

When the time comes, will you retreat and talk about comrades?

childish!

This is still the best method.
To be continued...