According to Chu Xiong's memories of his previous life, the elixir that can quickly restore the damaged internal force without any side effects is called the "Meridian Golden Pill". There are some other pills that restore internal strength, but some of them have side effects. Yuqi was originally not an internal force in his body, and Chu Xiong didn't dare to try that. If something goes wrong, you'll regret it.

This kind of elixir refining material should be relatively common in the soul martial world. The only difficulty lies in the relatively high requirements for refining. At the beginning of refining, it must be chosen to be in the middle of the night, that is, at midnight in the previous life, which is said to be able to borrow the qi of heaven and earth to yin and cold. When the refining is successful, it is at noon the next day, that is, at twelve o'clock in the noon of the previous life, which is said to be able to borrow the qi of heaven and earth to the sun and heat. Yin and yang are in harmony, and life is endless. The overall time took 12 hours.

At the beginning, the weakest simmer should be used to facilitate the absorption of yin qi, and every two hours of it, the fire power should be increased one step, and when the dancheng is finished, the strongest martial fire should be used to refine the strongest masculine energy. And, every two hours, keep the temperature of the fire absolutely consistent. It was only after two hours that the temperature of the fire suddenly increased. And after the ascension, it must be absolutely balanced for two hours. Moreover, the intensity range of the weakest fire and the strongest fire should be divided into six levels. Ensure that the degree of improvement is almost absolutely the same every time.

"You're so embarrassing!" After Yu heard this, even if she thought of Danzong's cultivation, she couldn't help but secretly speak. This is the control of the fire temperature, which is simply the pinnacle and perfect. If you are not careful, you will ruin a furnace of elixir. "In your so-called past life, someone really refined it?"

"Well, yes, it's just legends. Chu Xiong said with some embarrassment, "Legend has it that an alchemy master named Guangchengzi once refined the Meridian Golden Pill. Speaking of which, Chu Xiong wanted to slap himself in the mouth. Grandma Di, Guang Chengzi, that is a legendary character, and is even worshiped as a fairy ancestor by the alchemy world. It's embarrassing to use him as a reference, and it seems that he is too inauthentic. "Hey, forget it. It's really not easy, so let's find another way. ”

When Yuqi heard this, her expression immediately darkened, and she looked pitiful.

Yu was also a little ashamed, after all, he couldn't help Yuqi. Originally, as a third party, no, it seems to be a "fifth party", and it is said that he has the opportunity to be close to the woman in front of Chu Xiong, which is also a good opportunity. However, I couldn't do it myself. However, as a professional maniac, the attention to the best Danfang is far more than ordinary people. "This elixir can definitely be called the best elixir. Although it is difficult to refine, the recipe is still precious, you tell me about it. ”

Chu Xiong thought about it, and then said the recipe of the "Meridian Golden Pill". He didn't pay much attention to it, but the more he listened, the more shocked he became, and in the end, it was as if he had been struck by lightning!

"What's wrong with you?"

"This ...... This recipe is amazing!" Yu's eyes widened and he muttered to himself, "These materials are the most inferior materials in the soul martial world! Oh my God, the Great Star God is above, what you said is true?" Wait, let me think about it...... Well, warm ginger can clear the lungs and expel turbidity, and tail grass can nourish the meridians...... This does seem to be feasible! Oh my God!"

Chu Xiong frowned, "What's all the fuss about, although the refining process is extremely difficult to master, but the recipe is definitely accurate, I saw it with my own eyes from the handwritten original of the Ancient Great Dan Master at that time!" Although there are only a few pages left of the manuscript, and there are only three or four Dan prescriptions left, there is no doubt about the authenticity.

"It's against the sky!" Yu said categorically.

"What do you mean?" not only Chu Xiong, but even Qing Dai, Youda, and Yu Qi all asked at the same time.

"Those who have refined the best elixir can be called Danzong. But in fact, on top of the best elixir, there is also a divine elixir! In fact, the medicinal effect of the divine elixir is equivalent to that of the best elixir. It's just that the materials for refining the Divine Pill are the most common road goods. In other words, those who can refine this elixir have turned decay into magic. Look at this warm ginger, tail grass or something, none of the more than a dozen flavored pills is valuable. Therefore, this Meridian Golden Pill can definitely be called a 'Divine Elixir'! And those who can refine a Divine Elixir can be called a 'Dan God'!" Yu said excitedly and nervously, "You said that someone had ever refined this elixir? Oh my God, that senior is simply my idol!"

Dan God? Chu Xiong said in his heart, Guangchengzi has long been known as the immortal ancestor of the alchemy world, but it is not surprising to call him a Dan god. Of course, for Yu's judgment, Chu Xiong also felt that it was very standard. From the prescription of an elixir, you can infer the realm of the person who alchemists. This alone shows that Yu's eyesight is extremely clever. "But didn't you say that the highest level of this Soul Martial Realm alchemist is Danzong? What you said at that time is divided into five levels: Dan Disciple, Dan Sheng, Dan Master, Great Dan Master, and Dan Zong. ”

Yu asked disdainfully: "Then let me ask you, how many levels of soul martial arts are there?"

"One star to nine stars, what's wrong?" Chu Xiong didn't know what he meant.

Yu spread his hands and said, "That's right! In fact, above the Nine Star Heavenly Martial Arts, there are also gods who break the void, why don't you add them?"

"That's all legends, how can there be such a character now!"

"It's the same way!" Yu said, "and so is the Dan God. Except for the ancestors of the alchemy world 10,000 years ago, there has never been a Dan God again. So, how can the world rank the Dan God into the current class classification?"

Chu Xiong and the others were stunned, this is indeed the statement.

However, Yu said with anticipation: "I'm really envious! The recipe of the Divine Pill, tsk, it is estimated that there is only one in the Soul Martial Realm! It's just a pity that it can't be refined." "Obviously, as a Dan idiot, how could Yu not want to refine this Meridian Golden Pill? As long as he refines it, he will immediately be a figure in the alchemy world that shocks the past and the present, chasing after the alchemy ancestor 10,000 years ago!

"Look at what you said is so mysterious, as for it!" Chu Xiong pursed his lips, "It's rare that you are so attentive, I'll think of a way again." The main thing is to help Yuqi, and in addition, it can satisfy your vanity, hehe. ”

As he spoke, Chu Xiong fell into thought. According to Yu, the difficulty of refining this meridian golden pill all lies in the control of the heat temperature. And the hardest part of it is when the temperature of the fire is raised every two hours. Because the fire temperature is something that cannot be seen or touched, and it has to be divided into six levels, it is indeed difficult to master. As long as this problem is solved, as for maintaining the same fire temperature every two hours, then as long as the same star soul power is output to control it. Although it is also difficult for ordinary people, as one of the top Dan Sects in the soul martial world, Yu can still do it.

So, how to accurately divide the fire temperature into six levels on average? Chu Xiong naturally thought of the thermometer. It's just that there is really no such thing in the soul martial arts world. But you can try to make one! Yes, as long as you can make a thermometer, then there are rules to follow to distinguish the temperature of fire.

So, Chu Xiong took out a small copper container, and sealed and erected a tall glass cylinder on it, translucent. Inside, put some mercury in it. Thus, a simple thermometer was born.

"You light a fire underneath, and then use star soul power to control the temperature of the fire, gradually increasing the temperature. Chu Xiong said, Qing Dai had already seen the truth, and said with a smile: "You use this local method, I'm afraid it's not very accurate." ”

"There are only such conditions, no way. But with one more reference, the success rate is much greater. Chu Xiong said. Qing Dai also nodded, indeed.

Yu lit a fire and gradually raised the temperature of the fire in the way Chu Xiong said. Starting with the weakest simmer at the beginning, Chu Xiong made a mark, and when the temperature of the fire became stronger, the mercury column also increased. Until the fire temperature was at its highest and the mercury column was no longer rising, Chu Xiong hurriedly made another mark. And in the distance between the two marks, Chu Xiong divided them into six equal parts.

Then let Yu try it roughly, and sure enough, every time he reached a mark, the star soul power he output increased by about the same degree!

"It's up to you to come up with this way, ha!" Yu Daxi. With this thing, it should be more accurate to control the fire temperature.

"What's the matter? It's getting late at night, do you want to give it a try?" Chu Xiong said with a smile.

"Try, of course you have to try! If I succeed, I will be the second Dan God in the soul martial arts world in 10,000 years, haha!" Yu ran excitedly to his Dan room. Her residence and Dan room were next to the small building of the piano, and they arrived almost instantly. And as she said, the materials needed are all big road goods, and you can find them casually.

Yu waited a little nervously, waiting for the arrival of late night. As long as the time comes, he will be able to attack the level of that legend in the alchemy world with all his strength!

When the time is up, Yu carefully lit the fire, and controlled the fire to the weakest according to the requirements of the Dan Fang. Then, carefully put the herbs in order. Behind her, Chu Xiong helped her massage and relax, stretching her muscles and bones.

"No wonder you like to help Yu alchemy so much, it turns out to be so beautiful!" Qing Dai watched Chu Xiong's hand slide around Yu's body, teasing him without being sour or salty.

"Uh, alchemy is important, I'll talk about it later......" Chu Xiong knew that things were going on, so he could only fool around. However, the eyes of Qingdai, Enchanting Da and Yuqi definitely have a hint of being sadistic. If it weren't for the fact that this alchemy was related to the recovery of Yuqi's cultivation, it is estimated that the three girls would have rushed to the top a long time ago.

Two hours had passed, and Yu carefully raised the temperature of the fire to the second mark of the "thermometer". With a pop, the temperature of the fire increased, and the pill in the Ding Furnace was still being refined normally. This also means that Chu Xiong's simple thermometer is theoretically feasible!

The main question below is whether the remaining five grades are divided into standards. After all, the farther away from the bottom, the worse the thermometer's measurement accuracy becomes.