Chapter 517: Goodbye in the future (5500 words)

Xu Xin in the image continued to speak: "In addition, I also left behind a team of giant beasts. You need to discover this yourself. Maybe you have come into contact with them? Don't worry, you are not fighting alone.

"

"Of course, I also told them not to help you too much before you grow up, otherwise..." Image Xu Xin smiled, "I am the person who knows you best. Without pressure, you will become a waste."

"There are some things that I am not convenient for now and I don't have time to elaborate on them. If you meet them, you can get some information from them."

"Those giant beasts are very intelligent, and there is no problem communicating with them."

Xu Xin looked astonished.

On the ground, he met the giant crocodile. Underground, he met the giant black beetle, the giant blood-striped python, and the soft giant insect that was pressed under the prison.

These giant beasts have all provided him with more or less help, and from the voices of the giant python and giant insect, he can be sure that they know him.

So that's what happened...

They turned out to be the same selves in the image, leaving the team behind!

He suddenly felt confident!

"In addition to these, we have also left the most precious legacy to you in the future."

At this time, Xu Xin in the video spoke again, with a smile on his face and a confident expression for the first time.

"That's...the city you're in now!"

"This city is carved out of special crystals!"

As he spoke, he walked to the window on the third floor of the palace and pointed outside.

Although he should be in a virtual image now, Xu Xin could still see the city exuding a bright white light outside the window.

"This city will be our most powerful weapon to change the future and save the destiny of life on earth!"

This city was indeed built by myself in this image!

Is this crystal-like dream city left to them?

"This city is not small, you should have a deep understanding of it." Xu Xin said with a smile in the video.

"The area of ​​this city is a standard square with a side length of five kilometers. The area of ​​the entire city is twenty-five square kilometers."

For an urban area, this area can be said to be very large.

Building such a crystal city is definitely not an easy task.

Not to mention the material is extremely hard!

"The materials of this city were excavated together with the bloodline of the giant beast. The ancient mysterious materials buried deep inside the earth complement the bloodline of the giant beast."

"This kind of material is indestructible and extremely hard. The methods required to shape these materials are extremely complex. Physical collisions in ordinary environments are completely ineffective against them. It requires a high temperature of at least hundreds of millions of degrees to soften them."

……How many?

High temperatures of... hundreds of millions of degrees?!

Xu Xin was a little confused.

Is this temperature a little too outrageous?

The temperature of the sun's core is only 15 million degrees Celsius...

Of course, this temperature is not impossible to reach.

And it has already been achieved on Earth in the past.

Controlled nuclear fusion.

Although the core temperature of the sun is only 1,500 degrees Celsius, to achieve controllable nuclear fusion on Earth and create an artificial small sun, the temperature of the high-temperature plasma in the fusion device needs to be maintained above 100 million degrees.

Experimental devices for controllable nuclear fusion have already reached hundreds of millions of degrees Celsius on Earth in the past.

Of course, it was just an experimental device. At that time, controllable nuclear fusion was just something with a huge investment and a promising future.

Some pessimists even believe that the difficulty for humans to achieve truly controllable nuclear fusion is about the same as immortality.

However, it didn't surprise him that the Xu Xin in front of him had such skills.

After all, the person in the image in front of me seems to have almost achieved immortality...

Moreover, one of the uses of controllable nuclear fusion is to have almost unlimited energy that can travel in deep space. It seems that those alien invaders may have this technology themselves.

But... use hundreds of millions of degrees of heat to smelt this crystal material and build this entire city...

I'm afraid this difficulty is more than one and a half times higher than that of controllable nuclear fusion, right?

……horrible.

What kind of substance is this?

How did they do it?

"I can't tell you the smelting method. Maybe you will come into contact with it in the future." Image Xu Xin said, "All you need to know now is that this city can resist most attacks for you."

"That's right!" At this time, Xu Ying on the side couldn't help but said, "That's true. We have already conducted experiments on this city. Artillery shells and laser weapons cannot cause any harm to it at all, and even

Can reflect laser weapons!"

As she spoke, she hammered the crystal table in front of her: "This thing is very hard!"

Xu Xin in the image nodded and continued: "This is not the most important function."

"As long as a creature has the bloodline of a giant beast, in this city, the body's injuries and negative effects will gradually recover, and the bloodline of the giant beast will be further strengthened to resist the erosion of the blood pattern mutation. In other words, anyone with a giant beast

Creatures of bloodline, in this city, will be in their best and strongest condition... and become your companions."

this……

Xu Xin took a deep breath.

This function...

"When creatures with the bloodline of giant beasts live in this city for a period of time, and the bloodline of giant beasts is strengthened to the point that they are not affected by the blood pattern mutation, they will be your most powerful help!"

"You can use this city to form an extremely powerful behemoth army for yourself."

"In order to prevent this city from being discovered and alerted prematurely by the Blood Pattern Clan, and to prevent this city from affecting its future direction, I built it secretly underground and sealed it. I hope you can use it in the future

One day, arrive and activate this city we have prepared for you."

"If you can see this video, it means that you really did it." Xu Xin in the video still looked slightly worried, probably because he was afraid that his future self would not be able to find out, and that everything he did was...

In vain.

"They will definitely be found." Xu Ying on the side was very confident, "The location we established is just below the location where we teleported them. Can't we find it easily?"

"...I hope so." Xu Xin shook her head under the influence.

Xu Xin did frown slightly.

What he said is indeed very powerful and powerful, but...

This city is underground!

Does this mean he wants to live underground forever?

Xu Xin in the image continued: "That's all I want to say. This image will end soon. This city will end after this image..."

Before he finished speaking, his body suddenly became illusory again and even became a little distorted.

Xu Xin's pupils shrank suddenly.

This is much more serious than that time just now!

"Brother!" Xu Ying screamed and wanted to reach out and grab Xu Xin in the image.

"Don't touch me!" At this time, Xu Xin in the image suddenly interrupted her movements with a yell, "Do you want to die!"

"Just die!" Xu Ying was willing to risk her life and grabbed his arm directly. She gritted her teeth and said, "I can't live long anyway! There are only two of us left now! Even if you die, I won't live either!"

And the moment she caught him, Xu Ying's body suddenly felt unreal!

this……

Looking at this scene, Xu Xin's heart felt like it was about to stop beating.

Has the self in this image... reached the end?

Seemingly influenced by Xu Ying, Xu Xin's figure in the image gradually stabilized.

His expression became even more exhausted than last time, like someone who had stayed up for more than ten days. His eye sockets were sunken, as if he would die suddenly in the next moment!

"Brother...!" Xu Ying's eyes were already red and her voice was choked with sobs.

"Yingying, let go." Image Xu Xin said.

Although he looked like a zombie at this time and his voice was extremely hoarse, his tone was very calm.

"You can't go with me. There are some things that I need you to finish."

"I...I..." In the image, Xu Ying was about to collapse, but she still trembled and slowly let go of her hand.
To be continued...