Even though he was moved, Yang Kai didn't show it, but just asked lightly: "If your space magic array is really successful, how far is the teleportation distance?"

Yang Yan sneered: "The space magic array is to break through the constraints of distance. As long as you can accurately locate two points, distance is not a problem. Literature Museum."

"There is no distance limit?" Yang Kai's eyes lit up.

Yang Yan pondered for a while and said seriously: "It's the case in theory, but in reality, you still need to study it carefully... Do you give it to me?"

"Give it!" Yang Kai laughed loudly and waved his hand boldly. Anyway, there are so many ethereal crystals here, and he can't use them all. At that time, his relatives and friends can even ask Yang Yan to refine a space ring for each of them.

"Thank you so much, you are such a good person." Yang Yan was so happy that he wanted to rush over and kiss Yang Kai, and immediately ran to the side to collect it. Although her speed of collecting ethereal crystals was far less than that of the stone puppet, only the things placed in her ring could be considered her own.

Yang Yan understands this principle more than anyone else.

Yang Kai was not as unbearable as her. After experiencing the initial surprise and excitement, his mood slowly calmed down. He watched the stone puppet gnaw on the ethereal crystal ore, watching layers of impurities seeping out of its body and then peeling off, and he never got tired of watching it.

After so many years of cultivation and waiting, so many precious ores have been spent, now it has finally paid off. Moreover, the rewards of the stone puppet are so amazing. The first vein I found is the Ethereal Crystal Mine!

According to Yangyan, it is naturally extremely sensitive to rare ores. As long as it is available, the rare ore that others cannot find is within easy reach.

What a pity, I only have one blood essence stone, if there is another one, another stone puppet should be able to survive completely.

There were endless crackling sounds, Yang Yan collected the fragrance and sweat there, and the stone puppet was drying up, so Yang Kai was very idle.

Half a day later, Yang Yan ran to Yang Kai panting, took out a piece of holy crystal and restored it. Judging from her appearance, she seemed to have to go to mine again.

"What a pity." Yang Yan suddenly said.

"What a pity?" Yang Kai was stunned.

"Others only know that Ethereal Crystal is used to refine space rings and arrange space magic arrays. In fact, it has another function."

"Oh? Do you know something that others don't know?" Yang Kai laughed. Although he had not been with Yang Yan for a long time, this girl always made people feel amazing. It didn't matter whether it was her appearance or her figure. It was completely her real ability, so Yang Kai didn't underestimate her.

"It can also be used for cultivation." Yang Yan shook his head, "You don't know, do you? Many people don't know, well, so to say, there are very few people who know it."

"Can the ethereal crystal be used for cultivation?" Yang Kai was stunned, "Can it also be like a holy crystal. It is used to absorb and enhance strength?"

"Well, but we can't do it. It only targets a special type of person - warriors who understand space power can use it to practice and enhance their understanding of space power." Yang Yan said with a look on his own. He didn't notice that Yang Kai's expression became weird. "Space power is very erratic and mysterious. It is not only difficult to get started. It is even more difficult to master it. The space magic array left over now are all made by those cultivators of space power in ancient times. The refining of space rings was also developed by them. We are just picking up people's teeth. I can boldly say that there are no more than twenty warriors who know how to use space power in the entire star field, and among these twenty people, only a few people can use this power to fight the enemy. Uh, what are you doing?"

Yang Yan turned his head and suddenly found that Yang Kai was holding an ethereal crystal tempered by a stone puppet in his hand. He couldn't help laughing: "You don't want to absorb the power of the ethereal crystal, right? No need to try it. If you don't understand the power of space, you can't absorb it. But if you understand the power of space, you can do this. Do you know why those people have not studied the power of space? First, they don't know how to use the ethereal crystal to practice, and second, it's because the number of ethereal crystals is too small and cannot be used for them to practice. The cultivation of this kind of power is completely a burning money, and ordinary people can't afford it."

As he said that, Yang Yan closed his mouth, his eyes widened, staring at the ethereal crystal in Yang Kai's hand in disbelief.

She seemed to have noticed an obscure energy that overflowed from this ethereal crystal and was absorbed into her body by Yang Kai.

She thought it was her illusion, so she couldn't help but pay more attention.

There is indeed energy flowing out of the ethereal crystal, like a stream passing into Yang Kai's body. This is not an illusion!

"You..." Yang Yanfang was shocked.

"Is it really OK?" Yang Kai was very surprised.

In the study of space power, he has always used the turbulence in space cracks, but studying it in it is not only dangerous, but also gains little. Since he came out of the suspended continent, he has not done this again, because he found that his mastery of space power has fallen into a bottleneck state, and it is meaningless to do that.

After hearing what Yang Yan said today, I couldn't help but try it, and the effect was surprisingly good.

The ethereal crystal can really be used to practice and enhance one's own mastery of space power.

"Do you understand the power of space?" Yang Yan couldn't help it anymore and screamed in dismay.

"Yes, I'm one of the twenty people you mentioned." Yang Kai chuckled.

"My God, what kind of monster are you?" Yang Yan's flower face changed color. She never expected that she could meet such a person. Yang Kai was proficient in space power, which was even more incredible than her being a virtual weapon refiner.

"We are all secrets." Yang Kai nodded slightly: "Well, I want to practice for a while. You can mine the ethereal crystals yourself. Whatever you pick is yours. Then let the stone puppet help you refine it."

As he said this, Yang Kai no longer paid attention to Yang Yan and practiced with the Ethereal Crystal on his own.

Yang Yan lost his mind for a long time before shook his head.

The more she contacted this man, the less she could understand this man.

However, Yang Kai was very relieved to be unpretentious to her. He did not disturb him anymore. He walked to the stone puppet and started mining with it.

The energy in the Ethereal Crystal is somewhat similar to that in the Holy Crystal, but as Yang Yan said, not everyone can absorb it. Even Yang Kai cannot obtain any energy from it without using the space power. However, once he uses the space power, Yang Kai can feel an extremely magical feeling overflowing from the Ethereal Crystal and flowing into his body.

That kind of power is different from Shengyuan and is of no use to the strength of the body. However, as the power increases, Yang Kai clearly felt that his understanding of space became clearer and more proficient.

When I experienced and felt in the turbulent space in the past, it was like sailing against the current, which was very difficult. All kinds of troubles lingered in my heart and blocked in my heart. It often took a lot of time to realize some clues.

But now it’s different. Yang Kai has never experienced such a feeling. The mystery of space power seems to have opened the door, allowing him to soar in it and peek into various secrets.

He never knew that the mystery of the cultivation space was so simple and easy. He was extremely excited and practiced day and night, completely forgetting everything around him.

But soon, Yang Kai discovered a problem.

As Yang Yan said before, such practice is simply a super loser behavior.

The consumption of the ethereal crystal is faster than that of the holy crystal. Yang Kai can use a top-grade holy crystal to practice for two hours before all the internal energy can be absorbed completely.

However, the ethereal crystal that was the size of a fist and tempered by the stone puppet disappeared in his hands for less than an hour.

At the end of a day, he had to consume more than a dozen pieces of ethereal crystal essence after tempering, which was calculated as at least hundreds of thousands of top-grade holy crystals!

Who can bear this price? Even a giant like the Hengluo Chamber of Commerce may not be able to bear it. If you continue to practice like this, you will sooner or later go bankrupt.

Fortunately, the stone puppet discovered such a large ethereal crystal mine, and fortunately Wuyi gave the mountain to him to live in. Yang Kai was very grateful.

Time flies, and more than ten days have passed. Yang Kai consumed almost two hundred ethereal crystals. The ones he brought back from the stone puppet last time have been reduced by more than half.

Fortunately, the stone puppets have been constantly mining for the past ten days. Now the underground cave has become large, and it has expanded several times more than before.

Feeling Yang Kai's summoning, the stone puppet walked over swayingly, opened its mouth, and hundreds of refined ethereal crystals piled up in front of Yang Kai.

Yang Yan couldn't bear to look at Yang Kai. She thought Yang Kai was a vicious slave owner, and the stone puppet was a poor little slave. After working hard to collect, they were all exploited by Yang Kai.

After putting the hundreds of ethereal crystals into the Demon Mystery Book, Yang Kai practiced again. He felt that his understanding of the power of space had taken a step further than before. Although he had not tried it, he estimated that the distance he could move was no longer a thousand miles away.

On this day, the ethereal crystal in Yang Kai's hand disappeared again. He slowly opened his eyes and saw Yang Yan looking at him with a stingy face, she sat quietly in front of him, covered in dirt, and shook his cheeks with both hands, looking at him without hesitation for a moment.

"Why don't you pick it?" Yang Kai asked.

Yang Yan curled his lips: "I found that I don't need to work hard to collect it. Just let Xiaoxiao collect it. If I need it, I will just ask you."

"Xiaoxiao?" Yang Kai frowned.

Yang Yan pointed to the stone puppet that was working diligently to gnaw on the Ethereal Crystal. Only then did Yang Kai realize that she had given the little guy a name without authorization.

He smiled and said, "I finally found out?"

"You all enjoy the fruits of its labor with peace of mind. Why should I be a coolie?" Yang Yan stood up, patted his butt and said, "Let's go up and hand it over the Ethereal Crystal. I still need to refine weapons."
Chapter completed!