At the same time, scientists are crazy about studying the human brain, because if they have such a huge potential brain, the technological development of their race may be able to restart after 20,000 years!

But later, they discovered the most ecstatic substance on the planet.

…

"...the...white crystal on the earth?" Xu Xin said softly.

"Yes." The monster nodded, "Crystal on the earth."

"...could it be said that the white crystals on the earth are related to your red crystals?" Xu Ying also asked.

"Yes." The monster nodded.

"This is the first time in the past 20,000 years that their species has discovered a substance related to the 'source of life'."

The weight of this sentence is too heavy!

After twenty thousand years of searching, we finally found the hope for the eternal survival of our race.

The three of them, Xu Xin, could completely feel their ecstasy and excitement at that moment.

But the victims are humans, so there is no need to talk about it.

"...Huh? Wait a minute, this incident should have happened not long after the invasion of the earth, right?" Xu Ying suddenly felt that something was wrong, "If there is your source of life on the earth, then why did it happen during the three days when I was enslaved?

In a hundred years, won’t more alien creatures immigrate to the earth?”

"There are two reasons."

The monster answers Xu Ying's question.

"The first point is that the planet itself is not suitable for them to survive. This land is covered with a terrifying substance that can dissolve them - water. At the same time, the air also contains water molecules. It rains at every turn in most areas.

Most of the areas here are difficult for them to survive. For them, the earth is equivalent to a planet with a very harsh environment."

Well...that's it.

If they don't want to come into contact with water, seawater is okay as long as they don't get close, but if the air is humid, there really is nowhere to hide.

However, what is water to them...

"The second point is the crystal."

The monster continued.

"The white crystals on the earth only have certain similarities with the red crystals all over the planet on the material level, and cannot be used directly. However, they can transform this crystal, and under certain conditions, they can

It can be transformed into red crystal, but this condition does not exist on earth."

"Oh..." Xu Ying understood immediately, "In other words, you need to transport the white crystal mined from the earth to your home planet?"

"That's right." The monster nodded its disproportionally proportioned head and continued, "After experiencing the initial ecstasy, they discovered that the mining efficiency of white crystals is very low, and the conversion efficiency is not high. With their current technology,

, probably only... about 500:1."

500:1?

"Five hundred tons of white crystal can be converted into one ton of scarlet crystal?"

"Yes." The monster nodded, "But even so, the earth is still the first planet they have explored in outer space to have the raw materials that make them the source of life. According to their current proven reserves, all of them can be mined, at least

It can also allow their race to continue for tens of thousands of years."

Tens of thousands of years...

It sounds like a lot, but for the continuation of a species, it's very short.

The ancestor of human beings, Homo sapiens, is 250,000 years old since its birth. If we go back further to the ancient apes, it will be even longer.

In the billions of years of evolution of life on earth, ten thousand years is just a blink.

Not to mention that these alien invaders have been exploring space for 20,000 years.

"Although tens of thousands of years is not a long time, it can at least alleviate the increasingly tight resources of the parent star and stabilize their mentality. Moreover, this is only the proven reserve, and there are still many unexplored areas. For example...

"

The monster looked at Xu Ying: "For example, the underwater underground world area where humans on earth currently live."

"Ah!" Xu Ying covered her mouth, and then her eyes when looking at the monster changed slightly, "Is it really you? Only you found out."

"Yes, it's just me, because I'm the only one who doesn't have any fear of the ocean. I'm the only one who can survive in a humid area close to the ocean for a long time." The monster admitted.

"Hmph, when you finish saying what you want to say, I still have many things to ask you." Xu Ying thought of her experience in the underground world, and her voice suddenly became slightly cold.

"I know everything." The monster said, "In short, this is their main purpose of colonizing this planet. For them who survive on their home planet, this place is just a... mine with a harsh environment and an experimental site.

.So of course they will not continue to increase the number of colonists."

I see……

"The red crystal they are using now was sent from their home planet. It is a crystal about the size of this tree house."

The monster stretched out its twisted hand and pointed downward, and said the purpose of its trip: "I know the current location of the crystal. I am looking for your cooperation because I want to use your power to... destroy it.

That crystal."

Xu Xin and the others' eyes flashed with surprise.

But none of the three people spoke. Instead, they looked at the monster, wanting to hear what it had to say.

"Because of the strategic importance of the Earth, that crystal was condensed by almost exhausting the spare resources of the mother planet. It can allow these people to survive here for at least several thousand years. This is why they only need to absorb a little.

More than enough for a day.”

"At the same time, huge resources have been spent between the earth and the mother star to establish a one-way channel for the transportation of materials from the earth to the mother star, but there has not been a channel to transport resources from the mother star to the earth, or from the mother star to the earth.

It’s very difficult and we still need to cross the sea of ​​stars.”

Xu Xin took a deep breath.

He knew what the alien invaders wanted to say.

He said: "You want to say that as long as we destroy the red crystal...the alien invaders will lose their source of life and have to...leave the earth."

"Yes. That's what I mean." The monster nodded.

The scene fell silent for a while.

This amount of information is a bit difficult to digest.

It's even a little unreal.

Xu Xin was holding back a lot of questions that she wanted to ask, but before that...

"This... is too important. Let's talk about it last. I want to determine now why... you want to come to us and drive away those intruders." He asked, "Why? I didn't

If you guessed wrong, you must have always been one of them in this time and space, otherwise..."

Xu Xin looked at Shi Wanyun: "Otherwise you wouldn't have sent her to find an opportunity to kill me. So, why did you drive them away?"

"...I am not one of them, I just cooperate with them to realize my experiments."

The monster slowly explained.

"Now that my experiments have been discovered by them and they have destroyed my experiments, there is no need for me to cooperate with them."

"Your experiment?" Xu Xin squinted slightly, feeling something was wrong, "What experiment?"

"An experiment to create a new biological race." The monster's eyes opened a lot unconsciously, "I want to create a...race that can accept me."

……What?

"The race that can accept you is..." Xu Xin vaguely guessed something, but he couldn't believe it.

"A race that is half earthly humans and half home planet humans." The monster said without any concealment.

While saying this, all its eyes opened, and it could be seen that it was a little excited.

"You are actually doing this kind of experiment!" Xu Ying stood up suddenly, in disbelief and a little angry, "You are actually continuing this experiment! You..."

"Ah!" Shi Wanyun suddenly screamed, interrupting Xu Ying's words.

She looked at the monster in surprise, her lips opened and closed slightly, and finally she said: "What I saw in your World Tree, in the house on No. 5, are the capsules all over the wall..."

Both Xu Xin and Xu Ying's pupils shrank sharply.

Both of them had seen that scene in Shi Wanyun's memory.

The capsules hanging on the walls are all half-human and half-monster beings!
Chapter completed!