But all in all, life in the library is still very comfortable, and the only thing that makes Xu Yi a little regretful is that Lao Peng doesn't have many jelly beans and can't be eaten for him often. (If Lao Peng knew that the elixir he had worked so hard to refine was only regarded as jelly beans, and his proud identity as an alchemist turned out to be an excellent pastry chef in Xiao Xu Yi's heart, would he burst into tears and commit suicide.) ）

After all, not everyone can become an alchemist, and it is not an exaggeration to say that it is one in ten thousand. It enjoys an incomparably revered status in the entire Tian Yuan Continent.

In order to become an alchemist, two necessary conditions must be met: constitution and flame.

We know that, according to the theory of magic, the attributes of the human body are generally divided into five types, water, fire, wind, thunder, and light. There is also an extremely rare dark attribute. It is also possible to mix individual attributes, such as a person having both water and dark attributes, or both wind and thunder attributes. and the extremely rare possession of three attributes.

And the alchemist must have at least two attributes, and the more advanced the alchemist, the more attributes he has. Refining pills above the seventh grade requires at least three attributes, so you can imagine how rare alchemists are under such odds.

Theoretically, there are two kinds of best alchemists, one of which is the six attributes. But in fact, it can't exist, the light attribute and the dark attribute are inherently restrained, if you gather on a person, you will become a vegetative person if you don't die. The second is the rare waste material physique of a thousand years, that is, there are no attributes at all. For example, Xu Yi. People with this attribute are also known as the most suitable alchemists. Because no attribute can also be called full attribute in a sense.

Lao Peng later also thought about challenging the legend of waste wood and cultivating Xu Yi into an alchemist. As a result, another obstacle was encountered.

Because it is still impossible to be called a true alchemist by having a soul with multiple attributes or no attributes, another necessary condition for an alchemist is also indispensable, that is: fire.

Fire, that is, the flame needed when refining medicine, refining elixir, it is impossible to use ordinary fire, but must use the flame catalyzed by the magic element or the qi of heaven and earth, and because refining medicine is a long-term thing, long-term refining, extremely consuming essence, therefore, every outstanding alchemist is actually a powerful magician or Holy Gate warrior. Of course, having more than three attributes will definitely be a great achievement in magic cultivation, as long as he is not too lazy.

And why is the non-attribute called a waste material physique, precisely because this physique cannot gather magic elements and the power of heaven and earth, it is naturally unable to control the flames, and it is naturally impossible to refine the best elixir. That is, the most unlikely alchemist.

So Lao Peng failed.

Lao Peng's failure this time did not affect Lao Peng's greatness in refining medicine.

When Xu Yi was ten years old, Lao Peng successfully shook the entire continent once. It is said that Lao Peng is not in the library for at least three months every year, but he did not go out for a day that year, and stayed in the room all the year round.

In September of that year, a mysterious guest came to the Royal Library. Xu Yi remembers it very clearly, because that time Lao Peng faced such a charming young woman, not only did he not move his hands and feet, but even the obscene words of his fame were not revealed today. And he also wore a rare formal suit, his hair was combed into a few thin strands, and it hung down neatly and naturally next to his ears. Uncharacteristically shows a serious side,

Feeling Lao Peng's strangeness, Xu Yi couldn't help but look at the guest a few more times curiously. This is a woman, although the corners of her eyes have shown slight fine lines, her skin is very well maintained, and her eyes are extremely clear and soft. She was dressed in a black robe, and the lower extension of the black robe was embroidered with golden patterns, all of which were in the shape of a dragon flying in the sky. The two dragon head buttons, one on the left and one on the right, are tightly snapped together.

The woman looked at Xu Yi carefully while looking at her, and thought for a long time before she suddenly realized.

"Cursed people?" she whispered. Lao Peng glanced at her, raised the teacup, gently scraped off the tea foam on the surface with the lid, shook his head and said, "That's the blind compilation of the Holy See, it's just a physiological anomaly." ”

The woman nodded, not discerning. Seeing Lao Peng's familiar action of piling tea leaves with her tongue, she was a little distracted and remembered some past events.

"Half a month later, it's autumn solstice again!" the woman spoke, after a moment of silence.

"Yes!" Lao Peng's expression darkened, and he suddenly looked a little lonely, and he also thought of some past events. He seemed to want to sigh, but in the end he didn't make any sound. The two were silent, and Lao Peng spoke again.

"If it's for myself, I don't want to trouble you, "Taiyi Xuandan" is not only me, but also," Lao Peng paused and looked up at Ding Xuan, "It's also your sister's wish." ”

"Taiyi Xuandan. Hearing these words, the woman named Ding Xuan didn't control her cold demeanor and exclaimed in surprise.

Taiyi Xuandan is one of the goals of the alchemist's life's struggle, and it only exists in legends. Ranked ninth in the world. It is one of the upper nine grade Xuandan, and compared to the low-grade pill, it has no function of increasing power. However, it allows the warriors' mystical energy and the magicians' magical elements to transform each other. According to Dansheng's record in "Hug Puzi": Taiyi Xuandan twins and double annihilation, changing the shape of the dragon, the main qi of the yin dragon, and the yang dragon turning into a mystery. It's very rebellious.

In other words, a mage can become a martial artist of the same level in an instant. Or that a martial artist is transformed into a mage of the same level. And this is not a one-time transformation, but the energy in the body can be converted at any time as needed. In short, it is a cultivator who can instantly produce a powerful demonic and martial dual cultivator. Although it is only a legendary elixir. However, since Dan Sheng refined the legendary "Shou Que Dan", which ranked third in the Upper Nine Rank Xuandan, people began to believe that the legend really existed, and it was only because the current alchemy technology could not reach a certain height that it was suspended in the books.

She had thought of many possibilities before she came, but she didn't want Lao Peng to be very unexpected to him. This alchemist, who had been expelled for misconduct, did not seem to be as muddy as the rumors, and although the past changes had caused him great harm, he had endured it and stood on another peak. There was a glint in her eyes, but the thought of the other person who had died dimmed her eyes.

"Netherworld fire, it's impossible. ”