Because he was worried about Lin Xue, Li Qingfeng was very fast, and he returned to Donghai City at seven o'clock in the evening.

Because Li Qingfeng was in a hurry, the clothes on his body were torn into countless strips of cloth by the thorns in the mountains, and he looked extremely miserable, and his face and body were also covered with dust, looking like a beggar.

There were many people on the streets of Donghai City, and when they saw Li Qingfeng's appearance, they thought that he was a wild man who ran out of the deep mountains, and they all cast surprised eyes on him.

Li Qingfeng didn't pay attention to the eyes of the people around him, he quickly ran towards Donghai Medical University, as for the mobile phone, it had already been broken in the tomb of King Dan.

When he came to the gate of the medical university, the security guard didn't recognize Li Qingfeng at all, treated him as a savage beggar, and didn't let Li Qingfeng in.

Sou!

Li Qingfeng's body moved, like a bolt of lightning, and disappeared in front of the security guard in an instant, running towards the office building.

I wipe, what about the wild man just now, the security guard looked confused, he clearly remembered that there was a guy in front of him who was dressed in tatters and had a dark face just now, why did he disappear in a blink of an eye.

Li Qingfeng was as fast as a whirlwind, and in a blink of an eye, he came to the basement under the office building of the medical university.

Bang bang bang!!

Although he was anxious, he still had to be polite, Li Qingfeng stretched out his finger and knocked three times on the iron door.

"I'm Li Qingfeng, I've found the hard black vine, Professor Zhang, you hurry up and open the door. Li Qingfeng stood outside the door and spoke.

Hearing that it was Li Qingfeng's voice, and there was a thumping sound from inside, Zhang Yunhe was so excited that he actually touched all the experimental instruments on the table.

You must know that these experimental instruments are expensive, and they are still Zhang Yunhe's favorite, but now he is too lazy to care about these instruments, and quickly opened the door, with an excited face.

Zhang Yunhe was very excited in his heart, very excited, he had just heard Li Qingfeng say that he had obtained a hard black vine, which was the hardest medicinal material, and it was the nemesis of his cartilage poison, could he not be happy in his heart?

"Li Qingfeng, you really found the extinct hard black vine, let me take a look. As the Taishan Beidou of the medical community, Zhang Yunhe was like a child at this time, and he couldn't be excited.

Li Qingfeng smiled faintly, took out the hard black vine, and said: Give.

Zhang Yunhe took a hard black vine and looked at it carefully, it was a vine dozens of centimeters long, black all over, very hard, harder than gold.

He buttoned it with his fingernails, but it couldn't be buttoned.

"Li Qingfeng, this hard black vine is too hard to buckle at all, what should I do?" The excitement on Zhang Yunhe's face disappeared, and he was a little depressed.

"It's okay, it's broken all at once. Li Qingfeng smiled faintly, took the hard black vine, and then broke the hard black vine in half.

Ah, Zhang Yunhe sighed, looked at Li Qingfeng with a shocked face, and his eyes were full of shock.

This is a hard black vine that is harder than gold, how much power does this Li Qingfeng have, how can he break it with his hand, it is simply a demon.

If it was placed in the past, when Li Qingfeng was in the innate realm, he would definitely break the hard black vine, but now he is a half-step grandmaster realm powerhouse, so he can naturally easily break the hard black vine.

"Professor Zhang, I'll go and boil hard black vines for you to treat your cartilage poison. Li Qingfeng opened his mouth and said, he didn't want to waste time, only if he cured Zhang Yunhe's cartilage poison and let him stand on his legs, he would save Lin Xue.

Li Qingfeng is very powerful now, his hands are sharper than the blade, and he can naturally easily break the hard black vine.

Li Qingfeng broke the hard black vine into small pieces of one centimeter, a total of dozens of pieces, and then put it in a ceramic jar and added water, and began to simmer non-stop.

When Li Qingfeng was stewing the hard black vine, he began to take out the "Danwang Alchemy" and watched it carefully.

The explanation in "Danwang Alchemy" is very comprehensive, the front is the medicinal properties and pictures of various medicinal materials, and the back is the method of refining pills.

Among them, there are refining methods for the Acquired Pill, the Innate Pill, and the Grandmaster Pill, and in addition, there are also some refining methods such as the Detoxification Pill, the Enhancement Pill, the True Yuan Pill, and so on.

Alchemy requires three conditions, medicinal materials, Dan furnace, flame, these are the three most important things, Li Qingfeng has no medicinal materials now, and there is no Dan furnace and flame, so naturally he can't refine the pill, he just learns the theoretical knowledge of the pill.

This is a profound knowledge, Li Qingfeng watched it for two hours, and only then did he read a small part, although he didn't finish reading it, he already had a preliminary understanding of alchemy in his mind.

Everything must be learned theoretically before it can be practiced, and if you rashly refine the elixir, you will definitely fail.

Two hours later.

The hard vine in the ceramic jar made a gurgling sound, and it was boiled and boiled into a black, burnt liquid.

These burnt, viscous liquids, like syrup, are nothing more than black, exuding a rich medicinal aroma, sweet with bitterness.

Li Qingfeng took out the burnt liquid and gave it to Zhang Yunhe to drink.

Zhang Yunhe took a sip and felt too bitter and astringent, but in order to treat the cartilage poison in his body, he still gritted his teeth and insisted on drinking it.

The liquid of the hard black vine entered Zhang Yunhe's body, turned into black energy, and began to dissolve the white cartilage poison in his body.

If there is a microscope, you can see that Zhang Yunhe's body is undergoing earth-shaking changes, the white cartilage poison in his body is gradually decreasing, and it is all melted by the black hard black vine liquid and disappears.

Gradually, Zhang Yunhe felt that his body was warm, and he had strength in his body, and after the liquid of the hard black vine reached his legs, his broken and shattered bones began to slowly combine.

Of course, the process of bone fragmentation and reorganization was painful, Zhang Yunhe's face was full of pain, bean-sized sweat droplets slid down his forehead, and his nails pinched into his palms, leaching out a large amount of blood, making him miserable.

But even in pain, Zhang Yunhe gritted his teeth and persevered, because he felt that his numb legs were actually conscious.

The bones are reorganized, the blood is smooth, the meridians are dredged, and Zhang Yunhe's legs are slowly recovering.

Zhang Yunhe was very painful, and even fainted in pain, seeing him in such pain, Li Qingfeng hurriedly took out acupuncture and pricked the special acupuncture points on his body to relieve his pain.

Li Qingfeng understood that Zhang Yunhe had to be acupuncture and moxibustion, and he couldn't faint in pain, otherwise the medicinal effect of the hard black vine would be greatly reduced.

An hour later, Zhang Yunhe finally absorbed all the medicinal effects of the hard black vine, he felt that his body was warm and full of strength, and his bones had become hard, no longer the noodles he had before.

Zhang Yunhe held on to the armrest of the wheelchair, and stood up tremblingly, not standing for a long time, which made him a little uncomfortable, but after a while, he got used to it.

"Professor Zhang, I dissolved the cartilage poison for you and healed your legs, should you go and wake up my wife Lin Xue?" Li Qingfeng said, with a hint of anxiety in his tone.

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