Reaching out and pressing on the black crystal stone, Yan Yin could clearly perceive the hot flow gushing out of his chest, and then the clear stream came back from his palm.

Yan Yin carefully controlled the time, and when it was about a few dozen breaths, she let go of her hand and gently scraped it in the place where she was just now, and the outer layer of black crystal peeled off like a chip.

"Sure enough, as I expected," Yan Yin was overjoyed.

The next thing is easy, Yan Yin controls the time, slowly absorbing the clear stream inside. It took about half a day to peel off the chalcedony shell of the six layers of black crystal.

What appeared in front of his eyes was a crystal clear oval stone fetus, and in the stone fetus, there was some ru-white liquid.

"These, is it chalcedony?" Looking at the stone fetus in front of him, Yan Yin sighed, "I can't imagine that there is such a magical thing in a stone, and the stone is not a stone but a liquid." This world is really full of wonders."

Just as she was about to touch it, Yan Yin suddenly thought that if this thing was absorbed by the jade tooth in her body, it would be over.

"It seems that I have to find a time to ponder the jade tooth in my body, and I can't let it absorb things at will" Yan Yin muttered, "It's strange to say, why didn't it absorb the Phantom Sword forged by an alien meteorite that is more powerful than black crystal?"

Looking at a stone fetus the size of a baby in front of her, Yan Yin took off her clothes and wrapped it and took it back to her room.

picked up the "Extraterrestrial Objects" on his bedside, and Yan Yin looked for it.

"Here" Yan Yin found the page of the black crystal and flipped through it.

"Black quartz is a kind of ore that is only strange in heaven and earth. Its mountains are the product of hundreds of thousands of years of cultivation, and they are formed after the mountains absorb the qi of the earth from all directions. Because it is formed by the condensation of earth qi and is located in the center of the mountain, in the process of its formation, a 10,000-zhang high mountain will be slowly condensed into a small mountain of less than 100 zhang. Dark quartz has seven layers, one of which is the weakest and the seventh is the hardest. The lower the number of layers, the less earth qi it contains, and the higher the number of layers, the highest concentration of earth qi. Sometimes, where the heart of the mountain and the spirit of the earth coexist, the hardness of the black crystal produced has reached its maximum, and even any material cannot leave a mark on it. In the process of formation, if the black crystal is deflated due to the lack of earth qi or the deep mountains, then its growth will stop. Finally, in the very center, a magical substance was condensed - chalcedony. Chalcedony is not to be consumed, but when combined with dozens of exotic medicines and materials, it can be used for bathing. After bathing, the human body will receive the nutrients of chalcedony, which will make the body stronger. Yan Yin frowned and said, "I didn't expect that the formation of black crystal was actually like this." No wonder that mountain looks so inconspicuous, it was once a majestic mountain, but it was only because of the black crystal in it that it became like that."

Yan Yin continued to read, only to see that it read, "Chalcedony is also a very magical thing, if it is old, it will produce thin lines, and those thin lines are the dragon of earth qi." If you can subdue the Earth Qi Dragon, you can make the earth in the five elements in your body abundant, and finally make the internal organs of your body stronger and stronger. ”

Yan Yin was startled and hurriedly looked at the stone fetus. Although it is extremely crystal clear, it does not have the earth qi dragon mentioned in the book.

With a sigh in his heart, Yan Yin found the page of the extraterrestrial meteorite again, and the introduction on it was very simple.

"Extraterrestrial meteorite, also known as the lucky stone. It is a magical extraterrestrial ore, and its toughness can be compared to a six-layer black crystal. However, compared to the six-layer black crystal, the extraterrestrial meteorite is slightly more flexible, while the six-layer black crystal is harder. If it is to forge weapons, the alien meteorite is easier to forge, and the durability of the forged weapon is stronger than that of the black crystal."

"I can't imagine that the extraterrestrial meteorite is so powerful" Yan Yin closed the book and sighed, "The extraterrestrial meteorite is tough, and the black crystal is hard." The former is both rigid and soft, and the latter is extremely rigid and easy to break. In terms of weapons, it is indeed an alien meteorite that is much more powerful. ”

Putting the book aside, Yan Yin calmed down and began to feel the condition in her body.

The jade tooth was still next to the heart, but it was back to a state that lit up and darkened with the beating of the heart.

True qi circulates in the body, and qi and blood rush with the mind, and this time, there is no such state of physical transformation as before. It's just that Yan Yin found that the power contained in her body became more and more majestic and stronger.

"I don't know how to control the jade tooth, this is a foreign thing after all, although it has saved me several times, but if I can't control it, I can't help but feel a little uneasy" Yan Yin thought.

He first tried to let the qi and blood in his body cover the jade tooth under the control of the true qi, but before he could get closer, he was gently dissolved by the light of the jade tooth. I tried to wrap it with true qi again, but it was still quietly dissolved by the light of the jade teeth.

Looking inwardly at the jade teeth in your body that brightened and darkened with her heart, Yan Yin's heart suddenly moved.

He slowed down his breathing, slowed down his breathing, and slowly, the frequency of his heart became lower and lower, and the light of the jade teeth became brighter and darker.

Finally, when Yan Yin's heart stopped beating and her qi and blood stopped tumbling, the white light of the jade tooth froze and then disappeared. The last thing that appeared in Yan Yin's "eyes" was a piece of white jade tooth, quietly next to the heart.

Controlling her rhythm, Yan Yin slowly opened her eyes and touched the stone tire on the side.

There was no heat flow, and there was no clear flow, and he succeeded in controlling Jade Fang.

After a long time, Yan Yin let go of her control, withdrew her hand, the heart in her body resumed beating, and the jade teeth began to flicker brightly and darkly again.

Yan Yin, who knew how to control the jade teeth, was very happy, at least he was not afraid that a hot current would suddenly gush out of his chest in the future, and some precious things would be sucked away.

Although the stone tire has been made, Yan Yin does not plan to give it to them now. Since it was said that it was okay for a month, it would be the same for them after a month.

Finding a box in the house, Yan Yin adjusted the beating rate of her heart in a short time. This point is still very simple for Yan Yin, who is already a military general and a spiritual warrior.

Put the stone tire in the box and put it under the bed, Yan Yin looked at "The Chronicles of the World" with peace of mind.

For the next two days, Yan Yin watched Fang Xue go to class every day, and then did boxing in the bamboo forest in the backyard. It wasn't until noon that Fang Xue finished cooking together, and then chatted for a while, Fang Xue continued to go to class, and Yan Yin continued to practice boxing.

This day was the third day that Su Yanying said, and after Yan Yin finished eating, she took out the "Chronicles of the World" and handed it to Fang Xue, and said, "Xue'er, you can give this book back to Teacher Su for me." ”

"Have you finished reading?" wiping her mouth clean, Fang Xue looked at Yan Yin and asked softly.

Shaking his head, Yan Yin said, "This book is broad and profound, where can I read it in such a short time." It's just that Teacher Su wants to use it, and I also said that I will return it to her in three days, and today is the appointed time."

Fang Xue nodded, took the book, nodded with Yan Yin, picked up the streamer and turned to leave.

In the afternoon, Yan Yin decided to try her luck in the bamboo forest to see if she could find the mysterious boxing master.

It's just that the bamboo forest is a little big, and Yan Yin has been looking for more than two hours, but all she sees is bamboo and bamboo. I saw Fang Xue's bamboo house that they had said, Su Yanying's bamboo house, the structure is very exquisite, and there are wind chimes hanging outside, which is very poetic.

When he returned to the place where he lived, it was already night, and Fang Xue had prepared a meal and was waiting for Yan Yin.

"Xue'er, I've kept you waiting for a long time" Yan Yin said apologetically, "I went to look for the mysterious boxing master, but I didn't find his person"

Fang Xue smiled slightly, "It's okay, I'll meet it." That man came and went very mysteriously, even though I had been in this academy for three years, I had only met him twice."

After eating, Fang Xue took out a book and handed it to Yan Yin, saying, "This is a copy of "The Chronicles of the World" that I asked for from the academy, although it is not as complete as Teacher Su's, but it is enough for you." Take a good look at it for the next few days!"

Nodding, Yan Yin said, "Xue'er, you're so good"

Fang Xueqiao's face flushed, she found that she was in front of Yan Yin, and somehow she always loved to blush. Known as the Frost Goddess, she seems to have become a little less cold.

In the next few days, Yan Yin would boxing in the morning, take time to read "The Chronicles of the World" at noon and afternoon, and at night, she would practice Qingyue with peace of mind.

Compared with Yan's long fist, Qingyue Decisive Yanyin can cultivate unrestrained. Although Yan Yin hadn't learned the techniques of cultivators, he still got the know-how to fly from Fang Xue. It's just that he rarely cultivates.

Qingyue Duel has a great effect on Yan Yin, the true qi in the body can help Yan Yin regulate luck and blood, and can also increase Yan Yin's stamina and strength. After every battle, Yan Yin would use his true qi to find out the secret wounds in his body, and heal them together with his qi and blood.

So his body has always been kept in perfect condition.

On this day, it was the period of one month, Yan Yin took out the stone tire and gave it to the people who came to Qi Yue, and said, "Everyone, this is your thing" Qing Lingzi took the wooden box, opened it and looked at the stone tire inside, nodded, and said, "Thank you!"

Yan Yin nodded, "How do you get that shell open?"

Qing Lingzi said, "This is not necessary, it is not the time to break it yet, we have to wait until the dean and vice president come before we can break it." Otherwise, it will damage the chalcedony inside and leak the stone gas inside."

"Stone gas?" Yan Yin muttered in her heart and nodded, "Well, then Fang Yin won't send it"

The crowd turned and left, but there was only one man.

"Boy, where is Xiaoxue?" Long Yunfei looked at Fang Yin coldly and said, "I heard that you are her younger brother, right?"

"Hmm" Yan Yin looked at Long Yunfei calmly and said, "Yes"

"Haha......" Long Yunfei laughed, "I've known her for more than ten years, how come I never knew she had a younger brother." You kid came out of there, do you know who she is?Just because you want to climb up to her, and finally give Young Master Ben to stay away from her as soon as possible, otherwise ......"

"Otherwise, what?" a cold voice sounded behind Long Yunfei.

"Xiaoxue" Long Yunfei looked at the person behind him with a bright face, and said happily, "I finally saw you again, do you know?"

Fang Xue didn't look at Long Yunfei, walked to Yan Yin's side and held his hand, and said, "Let's go in!" Yan Yin nodded calmly, turned around and followed Fang Xue in.

"Xiaoxue, you ......" Long Yunfei said angrily, "Why are you doing this to me, I am your ......"

"You'd better get me out of here now, I don't want to see you. Also, you are not who I am, about that, I will tell my father. Now, you let me go, you are not welcome here" Fang Xue's cold voice came from the courtyard, "Also, if you come to disturb us again, don't blame me for being unkind to you, hum......"

Long Yunfei's face turned red and white, and he looked at the two people holding hands with great anger. The originally radiant face was replaced by a touch of resentment, "Little slut, one day I will make you ......"

Before he finished speaking, he felt a figure suddenly flash, and was shocked by dozens of feet in its panic.

"Keep your mouth shut, next time, I will kill you" Yan Yin looked at Long Yunfei who fell into the distance with a cold expression.

"Fang Yin, come in, don't pay attention to this person, he doesn't deserve your anger" Fang Xue's soft voice came from the courtyard.