I am Li Shen and Li Shimin, the free kings of the Tang Dynasty

Li Shen didn't know much about alchemy. He had also heard about alchemy in novels, but his alchemy was far more mysterious than reality.

    From the Tang Dynasty's perspective, Li Shen believed that alchemy was a science fiction film.

    One pill can increase one's lifespan by tens to hundreds of years, or hundreds of years of cultivation.

    The better ones in the Tang Dynasty's alchemy could forcibly lose blood, and the more powerful ones could directly lead to reincarnation.

    "Haha, Your Highness, Prince Ji is a great talent. Although the old Taoist is a cultivator, he still hopes to become an immortal and ascend.

    But for so many years, the old Taoist has also known that it is impossible to become an immortal.

    But every time after chatting with His Highness Prince Ji, the old Taoist felt that there must be gods, and His Highness Prince Ji was just like a mortal god, knowing everything.

    This alchemy path is very common among those who study it.

    They believe that cinnabar can change repeatedly and gold can last forever, so if you eat the elixir they made, you can live forever.

    Refining external elixirs involves using various secret methods to refine elixirs into elixirs for consumption, or directly ingest certain mushrooms to ignite one's own yin essence and turn it into yang energy.

    But His Highness King Ji believes that many of the materials they use are inherently toxic, such as mercury, sulfur, lead, iron, etc.

    King Ji said that these metal materials contain heavy metals that exceed the standard, that is, excessive amounts, which are harmful to the human body.

    Even if you don't die on the spot if you take this kind of medicine, you will be chronically poisoned, and you will not live forever, but will only be reincarnated.

    So King Ji named all the golden pills Samsara Pill. "

    Sun Simiao explained to Li Chengqian the conclusions of his discussion with Li Shen.

    Li Shen only has a preliminary understanding. He doesn't know what principles or formulas you want him to explain.

    "Reincarnation Pill?" Li Chengqian murmured.

    "Reincarnation Pill, just like his name, if you eat it, you will be reincarnated."

    "So serious?" Li Chengqian became even more worried after hearing Sun Simiao's explanation.

    "Your Highness, Prince Ji said, where can immortality come from in this world? Even if there is immortality, how can it be easily obtained by others?

    The alchemy techniques mastered by these alchemists today were all learned from the alchemy recipes left by their predecessors.

    Even they don't dare to try it easily.

    If there is immortality, why didn’t the predecessors achieve immortality themselves? After writing down the method, he died?

    King Ji said that the art of immortality is a magic that defies heaven, and it is no different from changing one's fate against heaven. How can a mortal be able to do it so easily? God is too easy to talk to. "

    Sun Simiao already felt in his heart that the prince must be seeking immortality, so he began to enlighten the prince.

    Li Chengqian heard what Sun Simiao meant and knew that Sun Simiao had misunderstood, but he could not tell the truth.

    Although it was no secret that my father was obsessed with alchemy and seeking immortality, and many ministers recommended him as alchemists, it was a bit embarrassing for Sun Simiao.

    "Thank you, Doctor Sun, for clearing up the confusion and giving me a sudden enlightenment. By the way, I wonder how Master Kong is doing now?"

    Li Chengqian asked, changing the subject.

    "Oh~~~" Sun Simiao shook his head.

    "Your Highness, Kong Jijiu is very old. Now he has passed his seventies. His body is weak and there is no way he can save himself.

    Now I just rely on medicine to nourish me, I’m afraid..."

    Sun Simiao stopped talking at this point. Li Chengqian knew that Sun Simiao meant that he might not live long, so he couldn't help but sigh with regret.

    "Oh~~~ I hope Doctor Sun will do his best. Money is not an issue. All the expenses will be borne by my prince."

    "The prince has filtered it, and the old Taoist should do his best. As for the cost... the cost of the Kongji wine is free of charge.

    All expenses are paid for personally by His Highness Prince Ji. "Sun Simiao nodded.

    "Oh? Old Ten paid for it? Could it be that Old Ten has a brain disease?" Li Chengqian was surprised, but blurted out the real thoughts in his heart.

    "..." This left Master and Disciple Sun Simiao speechless. His Highness King Ji should be a good person. Why do outsiders treat King Ji like this?

    "Haha, it's just a joke. Don't worry about it, Dr. Sun. Since there's nothing else, I'll leave first.

    I also hope that Doctor Sun will not spread this matter. "Li Chengqian stood up and ran away in embarrassment.

    The two of them also stood up and sent Li Chengqian out.

    In fact, Li Chengqian didn't mean to say that. To be honest, he had no friendship with Kong Yingda. Kong Yingda was once the crown prince's concubine.

    At that time, he was responsible for teaching the young Li Chengqian.

    Li Chengqian asked Kong Yingda to write the "Book of Filial Piety". Kong Yingda had great opinions after reading the article. He also wrote an article to satirize Li Chengqian, which was highly praised by literati.

    This was a big blow to Li Chengqian at the time.

    This is nothing, Li Chengqian did not follow the rules, and Kong Yingda violated Yan Jin's advice every time.

    Li Chengqian’s wet nurse, Mrs. Sui’an, once said to Kong Yingda:

    "The prince has grown up, how can it be appropriate for you to make him lose face like this?"

    Unexpectedly, Kong Yingda replied:

    "Thanks to the great kindness of the country, I will die without hatred." The remonstrance became more profound and even Li Chengqian couldn't bear it.

    Li Shimin rewarded Kong Yingda with gold, silk, etc. because he had admonished the prince many times.

    Li Chengqian grew up under this kind of influence. How could he have a good relationship with Kong Yingda? That is to say, Li Chengqian has matured and stabilized over the years.

    He has thought through many things, otherwise he would definitely take revenge on Kong Yingda.

    But Li Chengqian didn't understand why Li Shen was so kind to Kong Yingda and even treated Kong Yingda for free. This was not Li Shen's style.

    Little did he know that the dictionary Kong Yingda compiled for him made Li Shen a huge profit, even though a copy could not be sold for much.

    But it can't stand the crowd. Nowadays, almost everyone who studies has a copy, and many enlightened children will also buy one.

    Li Shen was thanking Kong Yingda as his partner. Although he did not receive any dividends, why not do it if he could get a good reputation by treating the disease for free?

    He is a person who can't afford to be early without profit.

    After Li Chengqian left, only Sun Simiao and his apprentice were left. Li Xiu closed the door and asked:

    "Teacher, do you think someone might have deceived the prince and made him want to live forever and cultivate immortality?"

    Sun Simiao stroked his beard and thought for a moment before saying:

    "It is very possible that my teacher also suspects that this elixir was not accidentally made by him, but someone refined it for her.

    But His Highness the Crown Prince is now young and strong, so why does he have the idea of ​​immortality? "

    This puzzled Sun Simiao. People who seek immortality are generally older people, and only those who are about to die do so.

    Li Chengqian is less than thirty years old now. He can cultivate whatever immortality he wants and how he can live.

    "Teacher, I'm afraid someone is deliberately trying to confuse the prince." Li Xiuwei guessed.

    "Well, it's very possible." Sun Simiao nodded.

    "Teacher, should we report this matter to His Highness Prince Ji? Prince Ji is on good terms with His Highness the Crown Prince.

    He has been helping the prince. If something happens to the prince, it will be very detrimental to Prince Ji and Prince Ji's palace. "

    Li Xiuwei had been an official, so he knew that King Ji was betting on the prince.

    If the prince is gone, it's hard to say whether another person can be beneficial to King Ji.

    (I have never practiced immortality, nor have I made elixirs, so please point out any inaccuracies.)