At this time, on the other side of the earth.
Xu Xin and Xu Ying had been quietly searching inside the World Tree for a long time.
The two of them were wearing invisible cloaks, and with Xu Ying's ability to teleport at any time, they could almost let go.
The two of them had gained almost nothing just now.
The feeling this world tree gave them was...
It's so safe.
This safety is not for the two of them, but for the alien invaders living in this world tree.
The situation outside had become so serious that their leader activated four giant ships and left. The monsters also set off countless alarms, causing so many alien invaders and various military facilities below to be on full alert.
Inside this world tree, there is actually...
So peaceful.
As if nothing had happened.
The two encountered at least dozens of alien invaders along the way.
These alien invaders are different from the world tree that Xu Xin visited before and the alien invaders who set up stalls.
The alien invaders here are almost all species with very smooth bodies.
Its body is not covered with bumps or tentacles, but is as smooth as a slime, like a slime with eyes all over its body.
It's basically the same as the security guard who died at the hands of Wen Guixin before.
These alien invaders seemed to have no idea what was happening outside and lived very leisurely in this World Tree.
No, not as if, they just don't know.
Because Xu Xin used his mind-reading ability to read the thoughts of the alien invaders they encountered.
Although Xu Xin was unable to read the alien invaders clearly due to their scattered nervous systems, he was still able to get a general idea.
Mostly just... normal small talk.
No tension at all.
Even the movements of the alien invaders in this world tree were much more graceful than those he had encountered before.
Xu Xin was basically certain that these alien invaders didn't even know that the hollow area in the crown of the World Tree was already preparing for war.
They are like a group of nobles living in the deep palace, unconcerned with worldly affairs.
"Brother, look at that one!"
Xu Ying tugged at Xu Xin's arm and whispered, pointing at an alien invader not far away.
The two are now in a space full of strange plants.
Here, some of the things look like smaller versions of the horrible plants in their underground world.
Tall and short plants grew and intertwined together, forming a scene that looked... eerie and scary.
Because of these plants, the overall tone is not green, but dark red.
Moreover, each of them was swaying slightly in the windless World Tree Space, and it was obvious that they were all alive.
Obviously, this is not a species from Earth.
Perhaps they were brought from the alien invaders' home planet, or perhaps they were created by genetically modifying Earth's plants.
We even need to consider whether these things that can obviously move on their own should be called "plants".
And among these slightly swaying dark red "plants", there are some opened roads.
It is called a road, but in fact it is just very thick vines spread on the ground, making it impossible for plants to grow here.
And on these "roads", many alien invaders are... walking.
Yes, this is actually a "park" built by alien invaders inside the World Tree.
This "park" is very large, not much different from a normal park, and the height of the entire park space is nearly twenty meters.
And in this park, there are more than a dozen alien invaders taking a walk.
Maybe more. Because Xu Xin could see more than a dozen at a glance.
The alien invader that Xu Ying just pointed out was one of them.
At this moment, a tentacle protruded from its smooth body, slowly stretching out and reaching upwards.
Then, the tip of the tentacle it extended deformed and became...
A human hand?!
This scene really made Xu Xin and Xu Ying curious.
"These guys can actually mimic human hands?" Xu Ying whispered.
Along the way, after observation, the two found that these alien invaders with smooth bodies without any protrusions or tentacles were actually very flexible, unlike what they looked like.
Although they normally have no protrusions or tentacles on their bodies, they can transform their smooth bodies into a variety of shapes.
The two also saw tentacles extending from the bodies of these smooth alien invaders several times.
Even the alien invader in front of us has imitated the human hand!
"As the highest-level and noblest alien invaders, their abilities are naturally the strongest." Xu Xin also whispered, "Perhaps it is because over the past thousand years, the alien invaders here have also discovered that the shape of human hands is very suitable for grasping."
It is really surprising that alien invaders who hate humans and are completely unacceptable to the human appearance can actually mimic human form.
The alien invader's mimicking human hand was still stretching upwards, and then its five fingers flexibly grabbed a fruit on a dark red strange plant.
As a result, the branch of the plant bearing the fruit shook off and avoided the grasp of the alien invader.
However, the alien invader's tentacle-like hands were very flexible. It immediately turned in the air and grabbed the plant again.
The alien invader's camouflaged human hand fought with the plant's moving branches for several rounds. Finally, the human hand grabbed the fruit and pulled it hard.
"squeak-"
Xu Xin and Xu Ying clearly heard a scream coming from the plant.
“Hey… this plant can actually be called…” Xu Ying showed a look of disgust.
Can a plant that moves and screams when its fruits are picked really still be called a plant
Xu Xin also felt emotional.
The things in this world tree are really eye-opening.
It was quite different from the other empty World Tree he had visited before.
The alien invader who picked the fruit did not eat it, but put it into the basket held by its other tentacle and continued on its way.
"Is this a high-level alien invader... So, Sister Gui Xin killed a top-level alien invader before?"
Xu Ying looked at these alien invaders in front of her who seemed to have no sense of crisis and began to get restless.
"Should we also try to give them to..."
Based on what they saw and heard along the way, the two speculated that these alien invaders with smooth bodies were the noble bloodline among the alien invaders.
Not only do they have noble blood, they also have very strong abilities.
The alien invaders they encountered can be roughly divided into three categories.
There are alien invaders covered with bumps, alien invaders covered with tentacles, and this kind of alien invader that looks very smooth on the surface.
The first type of alien invader covered with pimples was seen by Xu Xin in two places.
One is outside this area, in a factory that has been destroyed by them, where this pimpled alien invader works alone; the other is inside another world tree, at the very edge of the entire "stall" area, where there is a stall owner who is a pimpled alien invader.
It seems that the alien invaders with pimples all over their bodies may have the lowest status among all the alien invaders. They even have to set up stalls at the outermost edge.
The second type, alien invaders covered with tentacles, was what Xu Xin saw most often in another world tree.
Among the alien invaders who were allowed to enter another world tree and set up stalls there, the most numerous were those with tentacles covering their bodies.
Therefore, this tentacle monster should be the middle class of alien invaders.
The third type, which is all the alien invaders they encountered in this world tree, are the alien invaders with smooth bodies. They are the aristocratic bloodline of the alien invaders, the highest class.
These are the three major levels of alien invaders calculated by Xu Xin and Xu Ying.
As for why the classes are divided in this way, the two believe that it is probably based on the alien invaders' ability to control their bodies.
The alien invaders with bumps all over their bodies are the lowest level alien invaders, and most of them cannot control their bodies flexibly.
Alien invaders with tentacles can control them flexibly, but they only have tentacles.
The alien invaders with smooth bodies can change their bodies at will to camouflage themselves and transform into any form.
This kind of alien invader is naturally the strongest and the most noble.
"Don't make things complicated."
Xu Xin gently hit Xu Ying on the head.
"Don't forget our mission. As long as our mission is accomplished, these pampered nobles will not be a threat at all and will definitely be the first to escape."
These alien invaders didn't even know that the war outside had reached their doorstep, and they were still leisurely picking fruits in the "park". It was not worth Xu Xin and his companions' time to do so.
"That's true. Let's continue."
Xu Ying looked at the two furry ears exposed in Xu Xin's arms.
"Coco, are we going to go through this 'park'?"
"Bing!"
Coco, who originally had only two ears left, poked half of her head out of Xu Xin's arms again, and stretched out a small paw, pointing to the depths of the park, "Ying!"
"Let's go." Xu Xin continued walking along the road.
"Oh, I hope there's something good over there." Xu Ying's eyes darkened slightly, and she followed behind Xu Xin.
"I told you before, there shouldn't be anything inside this world tree." Xu Xin shook his head.
Then he looked forward.
A group of strange dark red plants of varying heights blocked most of his vision, making it difficult for him to see what was ahead.
The two were now deep in the "park", with rhythmic plants moving in all directions.
The two walked carefully, trying not to touch the "vegetation" that was swaying around them, for fear that the vegetation would stretch out its branches and attack them.
"Let's act as soon as possible." Xu Xin slightly quickened his pace.
His heart was always hanging: "I am a little worried about the situation below. Others are okay, but Wen Xi doesn't have much fighting ability..."
"Well... then, should we go outside and take a look later?" Xu Ying asked tentatively, "We haven't even been there for an hour yet."
"Outside..." Xu Xin also looked at the time.
There are still nearly five hours before the defeat that Ji Chaoyang predicted.
There is still plenty of time.
"Let's go back and take a look at the situation below. If there is no problem, we will go out and take a look."
"Yeah!" Xu Ying nodded.
The two continued walking through the park.
Because the vine road is not wide, whenever alien invaders come towards them, they can only retreat or take a detour.
Fortunately, there are many roads in this "park", and it took the two of them about twenty minutes to finally cross the park.
At the end of the park, there is a huge gate.
This door is five or six meters high, very tall.
The door was similar to the door in the World Tree they had seen before. It was a double-opening door made of an unknown metal. At the same time, the door was covered with scarlet vines.
Fortunately, these scarlet vines did not creep like the vegetation in the "park".
Closer to plants.
"Hmm." Coco called softly, indicating that they had arrived.
Above the door, a dozen cold-looking metal electronic eyes hidden behind scarlet vines were swaying slowly, probing the situation under the door.
Fortunately, Xu Xin and Xu Ying have not been discovered yet.
"…How do we get in?"
Xu Xin asked softly, looking around.
The door was closed tightly and there was no switch.
"If it was me before, maybe I could teleport there directly, but now..."
Xu Ying was a little distressed.
"Now I'm afraid something might go wrong. I only dare to teleport to places I've already been to, otherwise if I make a mistake I'll die."
"Then let's think of other ways." Xu Xin glanced at Xu Ying, a hint of worry flashing in his eyes.
Her current condition is becoming increasingly unstable.
"嘤." At this time, Coco half of her body emerged from Xu Xin's arms, trying to get out.
Then Xu Xin pressed his little head back.
"Go back and don't come out." Xu Xin pinched the little guy's ear.
"Bing!"
The little guy waved his paw and pointed to a location: "Bingying!"
Both of them eyes lit up.
This little guy always knows some key information at critical moments!
The two followed Coco's instructions and approached the door.
The two found that there was a...
A button similar to a doorbell.
The red button was hidden in the red vines, so the two of them didn't notice it just now.
"This..." Xu Xin looked at the little guy in his arms, "You mean, let us press this?"
"Hmm!" Coco nodded her little head.
The two looked at each other.
"Are you sure you won't be discovered, Coco?" Xu Ying asked in a low voice, then looked at the electronic eyes above her head.
"Oh!" Coco was obviously very confident.
"What do you mean?" Xu Xin looked at Xu Ying.
"… Press it." Xu Ying pursed her lips and grabbed Xu Xin's arm. "If any mechanism is triggered and something goes wrong while you're alive, I'll teleport you away."
Xu Xin nodded, without hesitation, reached out to push aside the scarlet vines covering the red button, and immediately pressed it down.
"Card."
The button got stuck after being pressed and did not bounce back.
At the moment Xu Xin pressed down, he withdrew his hand and pulled Xu Ying back a few steps.
He was still afraid that there was some trap.
As a result, there were no dangerous mechanisms.
even…
No reaction at all.
The two waited for a few seconds, but the door still didn't open.
“嘤…?” Coco tilted her little head.
It seemed that it was a little unclear about what was going on.
"Is it really like this, Coco?" Xu Xin asked with his head down.
“嘤…” Coco continued to tilt her little head.
It seems to be saying, "Yeah, but why isn't it open?"
"This door has not been opened for a long time. Is it broken?"
Xu Ying pointed at the vines that were climbing all over the door and the thick dust beneath the vines.
"How long has it been since this door was opened?"
this…
Xu Xin thought about it, walked forward again, stretched out his hand and pressed the button hard.
The button was pressed inwards a few centimeters again.
"Kachcha!"
This time, there was a mechanical sound.
Then he was pulled back a few steps by Xu Ying.
This door, which seemed to have not been opened for a long time, slowly opened outwards in front of the two people.
The vines on the door were gradually straightened when the door opened, but they still could not prevent the door from opening.
As the gate opened wider, the vines were torn off one by one.
At the same time, the scene inside the door was also open to Xu Xin and the others.
"Wow..."
Although he was prepared, Xu Xin was still shocked by the extremely magnificent decoration of the inner door.
Inside the door was a corridor made of scarlet crystals!
The sides, top, and even the floor of the corridor are decorated with various golden decorations.
… gold
Xu Xin could tell what these things were made of at a glance.
These decorations look so familiar... They seem to be decorations made by humans!
These things were either tributes from enslaved humans or spoils of war thousands of years ago.
Now, these things are used to decorate this corridor made of scarlet crystal.
Of course, these decorations are not the point, the point is...
"There are actually scarlet crystals in this place..." Xu Ying muttered to herself, "Moreover, they are normal scarlet crystals that have not been concentrated."
These crystals emit a relatively soft glow.
In order to facilitate movement, Xu Xin and Xu Ying had already taken off the protective film.
However, the light of this unconcentrated scarlet crystal did not make the two of them feel uncomfortable.
Normal scarlet crystal is a surfacing material found on the alien invaders' home planets. It was once very common on their home planets, but is now very scarce.
This is why alien invaders are invading planets all over the universe.
But now, this leader actually used these scarlet crystals to build a corridor for himself...
It feels luxurious just thinking about it...
Xu Xin turned around and looked.
At this time, five or six alien invaders had gathered behind the two of them.
…door…open…
Why…
The alien invaders were all wondering why the door was opened.
But they were not surprised or surprised by the scarlet crystal inside.
It seems that the leader here built this corridor with scarlet crystal, and they all know it.
… This is really extravagant.
No wonder there are alien invaders who want to rebel.
Although the number of alien invaders surrounding outside increased, none of them came close.
I'm afraid they are not allowed to get close to this side under normal circumstances, even though the door can be opened by just pressing a switch.
"Let's go in quickly." Xu Ying pulled Xu Xin inside. "There are scarlet crystals here. We came to the right place. We can't keep the scarlet crystals here. We have to destroy them all!"
Xu Xin looked forward.
The corridor needed no lights because the scarlet crystal itself emitted a scarlet glow.
About a hundred meters ahead, you will see a corner in the corridor.
The entire corridor was made of scarlet crystal, all the way to the corner.
How many scarlet crystals were used to build this place...
Here...
What else will happen
Xu Xin touched Keke's little head in his arms and whispered, "Keke, you have done a great job again this time."