Alchemy has existed since ancient times, and Zuo Feng doesn't know which great power created it in the first place. It is said that some people first discovered that some plants contain a lot of heaven and earth energy, which is not a simple aura, but also some substances that can heal injuries and even transform the human body.

After countless repeated attempts by predecessors, it was found that each plant has a different effect on the human body. Later, after several generations of people who were not afraid of their own dangers and tried various plants themselves, the definition of medicinal herbs was truly born. Later, after the attempts of some intelligent superpowers, they found that the mixing of medicinal materials together would have even more amazing power.

It was also from that time that the medicinal herbs that simply cured the sick and saved people also had new effects. The initial blending of medicinal materials was to select, grind and mix the plants, but later I slowly found that the medicinal effect would be more prominent after steaming, drying and other means, which was the method of mixing herbs that Zuo Feng learned from Zhuang Yu at the beginning.

The method of mixing medicines, also known as the making of ancient medicines, pursues the full exertion of the medicinal power of the herbs themselves, and at the same time releases all the medicinal power through the harmony of the spiritual power in the body. Some people who practice body refining have gradually discovered that in the method of mixing medicines, they can use spiritual power to drive Yan Crystal, and use fire energy to achieve better results.

What's more important is that the operation of the medicinal power of the method of mixing medicine mainly depends on the user, and the method of alchemizing depends on the personal ability of the alchemist, but in any case, the method of mixing medicine is the initial form of alchemy, and it is also the foundation of the alchemist. However, as the years passed, this method of mixing medicine was gradually abandoned by people, because most people paid more attention to the results of refining medicine and the improvement of spiritual power brought by refining medicine.

In the end, in the Xuanwu Empire, a continent famous for alchemy, only a few people understand the method of mixing medicine, and among them, of course, there is the guide of Zuo Feng's alchemy, Zhuang Yu. The practice of mixing herbs has the advantage that it can make the alchemist have a deeper understanding of the medicinal materials and a better understanding of the medicinal power of the medicinal materials themselves.

This is also why Yao Xun showed such a shocked expression when he saw that Zuo Feng actually knew how to mix medicines, and it also made Yao Xun's interest in Zuo Feng even stronger. Zuo Feng went from barely making the medicine powder to now being able to refine the medicine liquid, during which it took almost more than a month, and this progress speed can be called perverted.

Yao Xun didn't say much about this, and Zuo Feng didn't know that in fact, the biggest treasure that Zhuang Yu left him was the method of mixing medicine that he was taught at the beginning, and it was because of this that Zuo Feng was able to be handy when he was reforming and forgetting his worries.

At this moment, after Zuo Feng finished refining the Hui Li San, he began to think about how to improve the Detoxification San, if he was an ordinary alchemist, he might be at a loss in the face of dozens of medicinal materials, but Zuo Feng was able to continuously evolve the results of the mixture of various medicinal materials in his brain.

As soon as Zuo Feng's heart moved, he grabbed a foxtail flower, the detoxification effect of this medicinal herb itself was not obvious, but when he took out an extremely ordinary curly-leaved grass again, a look of excitement immediately appeared on Zuo Feng's face. Then Zuo Feng picked out a few more herbs and placed them in front of him in the order he had in mind.

In this process, Zuo Feng seemed to be at his fingertips, but in a room not far from Zuo Feng, Yao Xun, who was meditating on his knees, opened his eyes violently. At this time, his eyes flashed with a very soft joy, and his face was full of relief.

Zuo Feng's every move was under his observation, and when Zuo Feng took out these medicinal materials, with his own superb alchemy skills, he had already guessed what Zuo Feng wanted to do. Alchemy is simply made according to the prescription, which is almost all summarized by the predecessors after countless attempts, and the descendants do not need to have too much understanding, just follow it completely.

And the difficulty of improving Yiwei Yaosan is probably not much easier than recreating a prescription. Most of the medicinal materials in front of Zuo Feng are medicines that make low-level detoxification, but when Zuo Feng adds the foxtail flower and curly leaf grass, the medicinal effect itself will produce a qualitative leap, although it is not yet as good as the medicinal liquid, but it is already more than one grade higher than the original medicinal effect.

After Zuo Feng selected the medicinal herbs, he began to refine them, because he didn't know if it would have too many effects, and I was afraid that it would only be clear after refining, so he wasn't ready to waste time and start refining directly.

Zuo Feng first started refining according to his own ideas, and he slightly adjusted the steps of the original refining and detoxification powder, but Zuo Feng did not forget the original coordination of yin and yang, and the interaction between medicinal properties. Although it was also refining medicine, Zuo Feng was careful not to be distracted in the slightest this time, and his attention was also unprecedentedly concentrated, and he did not let go of any subtle changes in the medicine furnace.

However, not long had passed, and a low muffled sound came from inside the medicine furnace, and then a faint black smoke diffused from the top and bottom of the medicine furnace. Failure in refining medicine was already commonplace for Zuo Feng, especially since the failure of refining this time had long been expected by him.

Zuo Feng lowered his head and pondered for a moment, and then adjusted the several medicinal materials in front of him, the so-called adjustment actually meant that he changed the order of refining slightly. According to his original estimate, the newly added foxtail flowers and curly-leaved grass are all cold attributes, and some of the other herbs are hot, and most of them are close to neutral.

Therefore, he chose to refine the newly added foxtail flower and curly leaf grass first, and then refine them in the original order, which should allow all the medicinal materials to be mixed smoothly. However, after the actual operation, Zuo Feng found that his original judgment was still wrong.

That is, foxtail flower and curly leaf grass are two medicinal materials that are not too violent, and after the fusion, the properties have undergone some changes, and he originally took a fancy to the characteristics of these two medicinal materials, but he ignored the change in this characteristic, and other medicinal materials must also be adjusted accordingly.

After thinking about it for a while, Zuo Feng reconsidered a set of extraction and fusion sequences. The subsequent refining made Zuo Feng feel a big headache, because after repeated adjustments, there were still bursts of upsetting muffled sounds. Although these medicinal materials are not very precious, they are very precious to the current Zuo Feng.

Because he is trapped here now, he doesn't dare to leave at all, and if he wants to replenish his medicinal herbs, he can only wait until he leaves Luan City and goes to a safe place where no one knows him. Therefore, when Zuo Feng consumed nearly half of the medicinal materials, he also had to stop and think carefully.

If the amount of medicinal materials was more abundant, he could continue to squander it regardless of the consequences, and now he could only rely on serious thinking and deduction simulation in his mind instead of refining. But after all, Zuo Feng is only a teenager who is less than sixteen years old, and many deductions are very vague, and he is still not sure whether he can succeed in the end.

Just when the left wind was at a loss, a slightly yellowed leaf fell from the sky, and it coincidentally landed in the middle of the medicinal herbs lined up by the left wind. When Zuo Feng saw this dead leaf, his eyes were immediately attracted by it, and after a pause, Zuo Feng stood up with a happy face and took a deep look in one direction.

Yao Xun, who had been meditating in a room in that direction, had already left at this time, but there was the same dead leaf in the place where he had been sitting.

This withered leaf left wind is very familiar, because it itself is a medicinal herb called green wood leaf produced by the leaf forest, and this leaf is grown from the most famous green iron wood in the leaf forest empire, and its name is derived from this. This kind of dead leaf can be regarded as the most common medicinal material in the Yelin Empire, and its value is also the lowest among all kinds of low-level medicinal materials.

Green ironwood is famous for its sturdiness and is also the first choice for many large families to make furniture, but its leaves are rarely noticed. As a native of Yelin, Zuo Feng is very familiar with this green wood leaf. Aoki leaves belong to the warm type, simple grinding can treat minor trauma, internal administration will accelerate the flow of blood and gas to help recovery after serious illness, but also has a slight refreshing effect.

Most of the people who live in the Yelin Mountains will have some powder of green wood leaves on their bodies, although the medicinal effect is very weak, but the advantage is that you don't need to spend a lot of money to buy, you can pick it casually in the mountains. Zuo Feng now has some on him, which he also prepared when he didn't have much money or good medicine, and later he casually threw it in with Najing.

At this moment, the moment he saw Aoki Leaf, he knew that this leaf would definitely not appear for no reason, and he first thought that it was Yakuhiro who was reminding him. Because I had been having a headache about how to solve the problem of foxtail and curly leaf grass before, now my mind is like the muscles and veins are unblocked, and all the problems are solved immediately.

Foxtail and curly leaf grass are both cool herbs, and the addition of this green wood leaf can not only play a role in comprehensive medicinal properties, but also make the final medicine powder more balanced. After Zuo Feng figured out the reason, he immediately got up and saluted where he felt Yao Xun should be.

According to the tips of Yao Xun and Zuo Feng's previous exploration, this time the detoxification powder was refined very smoothly, and Zuo Feng faintly felt that the effect of this medicine powder was probably comparable to that of ordinary low-level antidote liquid, but the real effect still needed to be tested before it became clear, but after all, this was an antidote, and what he hoped most was that he did not have the opportunity to use it.

When the first rays of morning light fell on the city, it also ushered in the most prosperous moment of the city, that is, the last auction of the five years. Although many people are not qualified to participate in person, or even to take a look, there are still many people who are driven by curiosity or have other purposes in mind, and the city is as lively as a major festival.

At this time, at the east gate of Luancheng, there was a pretty figure slowly walking towards the outside of the city, and its pace was still slightly different from that of ordinary women.