As Li Wenxi said, it is indeed true.

That small wall of World Tree roots seems to be indeed...

The wall looks a little looser than other locations.

They are also all entangled with the roots of the World Tree. The roots in other locations are tightly intertwined, and that location...

Doesn't seem that tight.

But in fact there is a big difference.

It was to the extent that if it hadn't been for the road that made them notice the wall, they wouldn't have noticed it at all.

Who could find such a small, slightly loose spot among such a large wall of roots?

"It seems that the fort growing on the ground just happened to help us." Xu Xin said with a smile.

"It grew from the ground?" Zeng Tao looked at the ground and was shocked, "It actually grew from the ground!"

"Did you just find out..." Lou Feier said speechlessly.

"Okay, in that case, let's go over there and have a look." Xu Xin looked at the people around him and said, "Let's go together."

"good."

Everyone jumped down from the scarlet crystal and landed very lightly.

Fortunately, it did not attract the attention of the surrounding forts.

At this time, they were only four or five meters away from the three alien invaders who were working hard to cut away.

There were bursts of cutting sounds from over there.

From the sound point of view, it is no different from Zhao Xiaochuan's cutter. The sound is not loud and is almost the same.

"Let's go, don't disturb them." Xu Xin whispered.

Everyone walked along this road without a fort, towards the edge of the underground space.

Because the underground space was not that big, just the size of a football field, they quickly reached the edge.

"Is this right here?" Zeng Tao stretched out his hand to touch the wall made of the roots of the World Tree. "It feels similar to the underground space of our World Tree... Why are you arresting me?"

At this time, Lou Fei'er grabbed Zeng Tao's hand that wanted to touch the wall.

Although Lou Fei'er's strength was definitely not able to stop Zeng Tao, Zeng Tao still stopped on his own.

"What do you think, can you touch anything here?" Lou Fei'er raised her hand and gave her a headache.

Zeng Tao covered his head: "Okay..."

At this time, several other people were trying to look inward through the gaps in these roots.

Xu Xin discovered that there was indeed a gap of about one finger between the entangled roots here.

But because the roots of these world trees are at least tens of centimeters, or even more than one meter thick, this finger-width gap cannot be seen from a distance.

But up close, it can indeed be seen relatively clearly.

Compared with other positions where the fit is tight or even partially deformed due to being too tight, this is indeed very different here.

From these gaps, Xu Xin could even hear the faint mechanical sound coming from inside.

"There is indeed something inside." Xu Xin touched her chin.

"What could be inside this?" Wen Guixin said to herself.

"It should be the exit, right?" Qin Fu speculated, "This place must not be one that can only be entered but not exited."

Xu Xin nodded.

This is what he thinks too.

After the alien invaders dug the scarlet crystal from the inside, how did they take it out?

Do we have to jump more than ten meters high into the "rotating slide" above, and then spin up and climb up?

Although the physical abilities of alien invaders should not be a problem, it is really too troublesome.

So, there must be an exit here.

It should be here.

but……

How to open it?

"Try it by touching it?" Zeng Tao suggested.

"I'm sure it won't open if I touch it..." Li Wenxi said softly.

"Let's give it a try. There is no other way now." Zeng Tao looked at Xu Xin.

Xu Xin nodded.

Zeng Tao immediately reached out and grabbed the thick roots.

It really didn't work.

"I'll try harder!"

She inserted her finger into the gap as thick as a finger and started to exert force.

The roots were slightly deformed under her force, and they were opened from the gap of a finger to the gap of about a punch.

Everyone looked back and saw that the mechanical jellyfish and turrets had not changed much.

Zeng Tao had already exerted all his strength at this time, his face was turning red, and he was gritting his teeth and trying hard to break it.

"Okay, let go." Xu Xin patted her head.

"Uh...!"

Zeng Tao immediately let go of his hand.

The entire root returned to its original shape the moment she let go.

"This is too difficult to open..." Zeng Tao said aggrievedly, rubbing her already red fingers.

Zeng Tao couldn't open it even with all his strength, so what should he do?

"Otherwise, let's release it here." Xu Ying suggested, "It may not be safe here."

"But it's too dangerous here." Wen Guixin pointed to the densely packed forts around her. "Those forts feel like they can turn on us at any time. Once discovered, we will be blown to pieces."

Everyone pondered.

What to do...

"Hey!" Li Wenxi suddenly exclaimed in a low voice, "Look, do they have an alien invader coming?"

Everyone looked around and saw one of the three alien invaders lifting the metal basket above his head and moving towards this side.

Are you really coming?

Xu Xin and others were surprised at first, and then happy.

Is it... just trying to get inside this wall? It should be able to open this place!

Everyone tacitly gave up this position and silently waited for the alien invaders to approach.

Soon, it moved here and stopped in front of the wall entangled with roots.

Then, a surprising scene happened.

This wall composed of thick roots of the World Tree slowly spread out in all directions like mutated vines!

These roots were absorbed into the surrounding walls, revealing the scene behind the walls.

Xu Xin and others saw that the space behind the wall was not large, but very small, which was the size of a bedroom. There was no passage to the outside world as they imagined. Instead, it was very high, nearly ten meters, equivalent to a three-story building.

.

The most surprising and eye-catching thing among them is a huge machine, seven or eight meters tall, occupying most of the space!

Alien invaders move into the front.

Everyone looked at each other and followed him one after another.

Then, they discovered that the alien invader with a metal basket poured dozens of fingernail-sized scarlet crystals in the basket that only covered the bottom of the basket into a small opening in the machine.

"Ka-ga-"

The machine made a sound, and the opening into which some scarlet crystals were poured slowly closed.

Then, the alien invaders put away the metal basket and returned the same way.

...This was originally the place where scarlet crystals were processed and preserved?

No one spoke, nor did they follow the alien invaders, but stayed here.

After the alien invaders left this small space, the roots of the World Tree that originally formed the wall gathered together and entangled themselves again, and the wall was formed again, locking Xu Xin and the others inside.

This small space became dark, and I couldn't see my fingers. The only light was the flashing red dot on the machine.
Chapter completed!