Chapter 662 Dark World

"More than a thousand kilometers and two hours?"

Xu Xin repeated it.

Xu Ying also looked at the man: "The speed is five hundred kilometers per hour. This speed is not slow at all in the underground world. Have you... prepared the tools for us?"

"certainly."

The man nodded.

"Since I am responsible for providing you with a location, I naturally have to send Buddha to the west. We have placed a flying shuttle in the underground world directly under this world tree. You can take this flying shuttle and go underground The world moves forward.”

Flying shuttle...

Xu Xin thought of the army of aircraft that were like a swarm of flying insects fifty or sixty kilometers away when he left World Tree.

Could it be that kind of aircraft?

"What you provided is the aircraft of the alien invaders, right?" Shi Wanyun asked, "Is it true that using this kind of aircraft will not be noticed by the other party?"

Can the military equipment of alien invaders really be used casually?

"Don't worry about this. This aircraft is used by our organization." The man explained.

"This aircraft is actually an aircraft that needed to be scrapped due to malfunction a hundred years ago. We did not scrap it, but collected it and modified it. The positioning device has long been removed, and many anti-positioning devices have been installed on it. It may be impossible to escape the alien invaders above the ground, but there is no problem in this underground world, as long as you don't get too close to their base.

Members of our organization have used this method to shuttle between the underground world and have been in contact for hundreds of years. They have never been discovered by the 'order defenders' or alien invaders, so you can rest assured. "

So that's it.

Xu Xin nodded.

The "organization" the man refers to is the "rebel" in this time and space. Because the force is too weak, it has only been able to communicate secretly underground for thousands of years.

They don't even dare to use communications, because all long-distance communications require the use of satellites of alien invaders, and are likely to be intercepted and eavesdropped by the "order maintainers". Therefore, over the past thousand years, they have developed an ability to operate in the underground world. The ability to come and go without a trace.

"You are really powerful..." Xu Ying expressed surprise at the methods of the rebels in this world, and then asked, "Why didn't you tell us when I talked to you last time?"

"When I talked to you last time, I didn't completely trust you." The man said, "Don't you also completely trust me?"

That's true.

The conversation between the two parties was actually not pleasant at that time, and basically no consensus was reached at first.

Fortunately, Xu Xin and the others later found a monster and let it create a bridge between the two parties.

At that time, after the man saw that the monster could speak human words and communicate stably, he couldn't believe what he saw.

Later, the two parties exchanged some information and finally reached an agreement.

"Although I can't believe that you will succeed now, the alien invaders have indeed sent out their troops, and everything is just as you said." The man said, "That's why we decided to spare no effort to help you. Of course, You must also, as you said before, not expose us. Naturally, we must also leave a way out for ourselves."

As long as they are not exposed, even if Xu Xin and the others fail, they can still survive.

"Don't worry, exposing you will not do us any good." Xu Xin waved her hands, "In that case, we won't waste any more time and let's set off now. Shi Wanyun, you..."

Shi Wanyun said softly: "I will do what I should do. You must be careful."

Shi Wanyun's ability has nothing to do with fighting, so naturally he will not go with Xu Xin and the others.

However, Shi Wanyun is the holder of this World Tree.

And here, surrounded by the vast sea, for alien invaders, this is definitely a place they don't want to come to.

Therefore, this is also their retreat.

If Xu Xin and the others fail, then Ji Chaoyang and the others will have no point in persisting.

Then they can transfer directly from inside the World Tree to the World Tree.

They are not going to do this at all costs. They must leave an escape route in everything.

When Xu Xin came here last time, he had already placed the coordinates here and connected them to the inside of the World Tree.

Although the time flow rate difference between the inside and outside of the World Tree is very poor, so communication and transmission are impossible, but as long as the time flow speed inside and outside is adjusted to be consistent, transmission and communication can be achieved.

In other words, once Xu Xin and the others fail, or Ji Chaoyang and the others cannot hold on any longer, they will directly adjust the flow rate difference and then transfer all the people in the World Tree to this island.

At this time, it was necessary for Shi Wanyun, the owner of World Tree, to accept the personnel.

Of course, if this happens, it doesn't mean that Xu Xin and the others will abandon the World Tree with a strong time difference.

Even if the World Tree over there cannot be defended, it will only be completely withered by the toxins injected by the alien invaders.

But the withering time is limited. Soon, the World Tree will grow back again because of its strong root system.

The alien invaders do not have access to the World Tree, so they cannot use the World Tree.

In other words, when the storm has passed, Xu Xin and the others can still find a time to return to the World Tree.

This is the retreat they have prepared for themselves.

It is not advisable to burn the boat, because the gap between the two sides in terms of strength and information is too big.

The chances of winning are not great, and burning the boat is equivalent to semi-suicide and meaningless. Modern war cannot be solved by relying on morale.

"Okay." Xu Xin nodded, "Be prepared at all times. We may not be able to hold on for long."

"I'll send you to the underworld."

Soon, several people came to the underground world through the root elevator of the World Tree.

The underground world here is under the entire deep sea.

Moreover, because there are no crystal veins here, the underground world is dark.

When Xu Xin and the others walked out of the root elevator of the World Tree, they were completely blind.

He immediately took out a treehouse core and illuminated the surrounding area.

But the range that can be illuminated is only a few dozen meters around.

There was no soil on the rocky and rugged ground, and the surroundings were extremely quiet, like a dark abyss. It was so quiet that it was scary.

This was completely different from the underground world he had seen before, which was filled with monsters and terrifying beasts.

This is a dark, unexplored world.

"After all, this place is relatively close to the base of the alien invaders, only more than a thousand kilometers away. They are not conducting experiments on giant beasts here." The man explained to Xu Xin again, "Besides, there are no crystals nearby. mines, so they are largely undeveloped except very close to their base.”

Before the man finished speaking, suddenly, two cylindrical strong lights were shot out from a position about two hundred meters away from the group of people, illuminating the surrounding area.

Xu Xin and Xu Ying also saw the source of the strong light.

It was what the man called a flying shuttle.

"Is this the aircraft you're talking about? It's so small..." Xu Ying complained as she stood next to the shuttle.

This is a very compact aircraft with three propellers on the left, right and rear.

The interior space is very small. Excluding the cockpit, only four or five people can sit in the back.

It’s almost the same as the interior space of a car or a small helicopter.

However, the propellers are very large, and the length of each propeller is longer than the cabin.

It looks like a large remote-controlled drone.

"This is our flying shuttle. This is the version suitable for the underground world." The man walked to the flying shuttle. "It is not very fast, but it is very flexible. It is very suitable for traveling in some areas with complex terrain in the underground world. .”

With that said, the man opened the hatch and entered the cockpit: "You don't know how to drive, I will take you there."

Xu Xin and Xu Ying looked at each other and then entered one after another.

The interior space is really small. You can only sit in it like a car and cannot stand up.

"Close the door, it's time to take off."

The propellers rotated rapidly, lifting the entire fuselage into the air.

But what is surprising is that even though there are three large propellers rotating at such a speed, there is basically no sound.

Silent propeller?

"The voice is so small." Xu Xin sighed.

This technology is really confusing. The noise is probably not as loud as a computer fan...

"Naturally it should be small. The purpose of this flying shuttle itself is to explore the underground world. If the sound is too loud, it will cover up some key sounds and attract large monsters, so it must be hidden."

Not bad, at least he won't be discovered by alien invaders because of the sound.

The sense of security is greatly improved.

The shuttle took off and rose to a position nearly a hundred meters above the ground.

"Sit tight."

This area is relatively flat, so the shuttle directly begins to accelerate laterally.

After the strong pushing feeling, the speed began to stabilize.

At the same time, a large light was turned on below the shuttle, illuminating a large circular area with a radius of several hundred meters below.

"Oh...this thing is really good."

Xu Xin looked out the window.

The underground world is not all as flat as the human base areas in the underground world. After all, the places there are specially selected. It can even be said that most of the terrain in the underground world is very rugged.

The terrain here includes up and down.

The ground and the dome are sometimes even connected in large areas, like a huge cave.

Therefore, if you want to travel through the underground world, first of all, ground tools are not possible.

Among flying tools, ordinary airplanes are fast but inflexible and cannot travel long distances.

The extremely flexible flying shuttle that can even hover is the most suitable means of transportation for traveling in the underground world.

But the flying shuttle has a shortcoming, that is, its speed is not very fast, at most five or six hundred kilometers.

This speed is far different from the civil aviation airliners of thousands of years ago.

Fortunately, their location was only a thousand kilometers away from their destination, and a speed of five to six hundred kilometers per hour was enough.

Fortunately, the location is relatively close. If we use this kind of shuttle to cross the ocean, it will be too slow. Especially the size of the earth now is no longer comparable to the earth in the past.

"Are you wondering how the shuttle can explore this underground world if it is so slow?" The man who was driving the shuttle turned around and asked.

"Hey, can you look ahead? Are you not paying attention when flying the plane? You are not afraid of being hit." Xu Ying complained.

Five hundred kilometers per hour is already very fast for humans.

Especially like now, the distance from the ground is less than a hundred meters, which is basically equivalent to flying close to the ground.

Looking at the scene of rapid retreat below, to be honest, it still feels a bit scary.

"Don't worry, this area is very empty. We will have to travel for at least half an hour before we reach the relatively complex terrain." The man said, "Moreover, the flying shuttle is driving automatically and can detect it several kilometers in advance. When it comes to obstacles ahead, if it encounters an obstacle that is not too complicated, it will go around it on its own; if it is a complicated obstacle, it will slow down to remind you, so don’t worry.”

"That's it. However, these are things that are more than a hundred years old, so there won't be any safety hazards, right?" Xu Ying leaned on the back of the driver's seat and looked at the instrument panel in front of her, "This can be considered a standard in equipment. It’s an antique, and didn’t you get it because it was broken?”

"Don't worry, I'm the one driving it. If there is really a problem, I wouldn't dare to drive it." The man smiled, "To tell you the truth, although this thing was scrapped due to malfunction a hundred years ago, it is not actually a real thing. The fault was caused by us deliberately reporting it for scrap and then pocketing it ourselves. We don’t dare fly an aircraft that is about to be scrapped.”

"...Good guy, this operation feels familiar."

"Ha ha."

The aircraft continued to move.

"Brother, put me in the bracelet, and I will explain the current situation to them."

"Okay." Xu Xin nodded, and then took Xu Ying in.

Then, he released Coco again.

Coco seemed to be running, and she jumped into his arms as soon as she came out.

"Huh?" The little guy raised his head, and then looked around blankly.

"Your little pet?" The man looked back at Coco in Xu Xin's arms, and then said in surprise, "Ah, this little animal... let me think about it... a red panda? Is it a red panda? This animal is not extinct yet. ?”

"Ugh? Uh-huh!" Coco was immediately dissatisfied when she heard this. She waved her little claws and scratched the man's face. Her big tail wanted to throw it at the man's face, "Uh-huh!"

"...The last time I saw such a little thing was a thousand years ago." The man's voice immediately became melancholy, "I thought that the red panda became extinct a thousand years ago, but I didn't expect that we can still see it. This kind of animal. I really... miss it so much..."

"Can you remember things that happened a thousand years ago so clearly?" Xu Xin couldn't help but ask.

"There are always some completely indelible memories in people's hearts." The man sighed, "And the memory of the peaceful era thousands of years ago is the most profound memory in my heart. Even if that memory is only thirty years old, It is also much more profound than the nearly thousand years since the war. I can still clearly remember that my daughter was so cute that she screamed when she saw the red panda..."

daughter……

"Your daughter later..."

The man smiled bitterly and whispered: "She and my wife died in that disaster, and I was the only one chosen to become a survivor."

"……sorry."

"It's okay, I was the one who mentioned this matter first. Sigh... I really hope you can succeed..."

There was bitterness in the man's tone, but it seemed... that he had completely lost his hatred.

Yes, anyone who has been enslaved for thousands of years without any resistance will have long since wiped out the hatred in his heart.

From his tone, Xu Xin could also tell that he actually did not believe that Xu Xin and the others could succeed.

But he still hopes that Xu Xin and the others can succeed.

"Ugh..." Coco seemed to notice that the man was depressed and stopped screaming.

Then it stood up and lay on the window of the plane, looked outside, and tilted its head: "...Huh?"

Xu Xin touched Coco's little head and looked out the window at the deserted underground world that was rapidly retreating.

Can they... succeed?