The house was almost ruined, overgrown with weeds, and it didn't look like it was inhabited at all.

Li Yi walked to the back room and saw a refining furnace in the room, and an old man with a withered and haggard expression was sitting next to the refining furnace, sighing there.

There was a small flame in the furnace, and the old man blew lightly on the flame, and the flame instantly rose several feet high, burning through the roof.

Li Yi felt a scorching breath coming from the surface, and couldn't help but be secretly surprised.

The old man was unaware of Li Yi's arrival, his hands flew continuously, and pieces of refining materials continued to fly out of his sleeves, falling into the refining furnace, sometimes taking it out, condensing the true qi into an invisible sledgehammer, forging it, sometimes putting it into the refining furnace to continue calcining, and sometimes carving a mysterious rune circle on the material.

The action can be described as fluid, without the slightest condensation.

The more Li Yi looked at it, the more frightened he became.

This old man's alchemy skills are extremely superb, far beyond Li Yi's cognition.

Li Yi was in the Seventh Human Realm, learned the Great Yan Alchemy Technique and the Holy Spirit Alchemy Technique, and integrated the two, and recently got Yang Xiaohua's guidance, and the alchemy technique has improved a lot, but compared to this old man, he is like a layman.

The old man's forging of materials is simply perfect, every forging is just right, and the depiction of the rune circle is even more delicate, and even a thumb-sized material can carve more than a dozen magic circles, this meticulous work makes Li Yi breathtaking, and he forgot why he came here for a while.

He stood by him for several hours, until late at night, and until dawn the next day, and remained motionless.

Just watching from the sidelines, Li Yi felt that he was very useful, many never-before-seen refining techniques, rune magic arrays, opened his eyes, although many places are not yet able to understand for the time being, but Li Yi has all in mind, as long as he can integrate them, his alchemy skills will definitely make great progress.

At noon, the sun was shining through a hole in the roof into the furnace.

The old man suddenly spoke: "The instrument has been formed, what should I do next?"

Li Yi was stunned and said, "It should be quenched." ”

"Quenching with what?" said the old man again.

Li Yi said: "Quench with water. ”

"Down, down!" the old man shook his head and sighed.

Li Yi thought for a while and said, "Then quench with true qi." ”

The old man said, "It's a little better, but it's better to get down." The alchemy of the Seventh Human Realm, over the years, seems to have regressed more and more. ”

Li Yi was puzzled and asked, "Then according to the opinion of the predecessors, what should be used for quenching?"

The old man was silent, took a bottle from his sleeve, uncorked it, and took a sip with his head up.

"Is it to be quenched with wine?" Li Yi was taken aback.

But I saw that the old man opened his mouth and spit out, and it turned out to be a cloud of blood mist, which was sprinkled into the refining furnace, making a snorting sound and emitting green smoke.

Spit out two more clouds of blood mist, the flame in the refining furnace was finally extinguished, and the magic weapon that was transparent red throughout the body quickly cooled down, and the old man took out the magic weapon, which was a long sword, with mottled blood on it, and the edge was not obvious.

After a while, the blood stains gradually seeped into the long sword, turning into a bloodshot that ran across both ends of the long sword, and in an instant, the sword qi was vertical and horizontal, and the edge was exposed, and a cold light illuminated every corner of the room.

Li Yi felt that there was a trace of great avenue aura emanating from the long sword, and he was even more frightened.

"Dao Weapon!" he blurted out.

In the Seventh Human Realm, Dao weapons cannot be directly refined, they can only be promoted through Heavenly Spirit Weapons, and after arriving in the Demon Realm, Li Yi saw many materials that condensed the aura of the Great Dao, so he thought about whether he could refine those Dao materials into Dao weapons, but he couldn't find a way.

You must know that there are huge differences in different materials, how to forge, how to carve magic circles, etc., Li Yi can only refine spiritual weapons, and he doesn't know how to start with those Dao materials.

A few days ago, Li Yi visited many refining masters in Shura City, but no one would refine Dao weapons, because of this, when those refining masters heard Li Yi ask about the refining method of immortal weapons, they would blast him out.

The old man glanced at him and said, "You are the descendant of the Great Yan Sect and the Holy Spirit Sect, at a young age, it is rare to have such a level of alchemy!"

Li Yi was taken aback and said in amazement: "How do you know where I come from?"

Alchemy is not comparable to cultivation, you must perform it first, so that others can see your origin and level. But Li Yi obviously didn't move from beginning to end, and he didn't say much, but the old man said that his origin was exactly the same, as if he could penetrate Li Yi's heart.

The old man said: "Your expression tells me everything, when I use the refining techniques of the Great Yan Sect and the Holy Spirit Sect, you look calm, but when I use the more advanced refining techniques, you are full of doubts, so I guess that you are the descendant of those two schools." ”

Li Yi suddenly realized, and at the same time admired, and said: "The alchemy of the predecessors is really superb, but the Great Yan Sect and the Holy Spirit Sect are both refining schools in the Seventh Human Realm, how did the seniors know about it?"

The alchemy of these two schools has always been a secret and difficult for outsiders to know.

The old man said lightly: "Of course I know, because the Great Refinement Technique and the Holy Spirit Alchemy Technique were both created by me. ”

"What?" Li Yi was shocked, and then frowned, feeling a little incredulous.

The Great Refinement Technique and the Holy Spirit Alchemy Technique are both very ancient, if the old man is the founder, then how old should he be now? And it is too ridiculous for a person to want to create two major alchemy techniques at the same time.

The old man seemed to see through Li Yi's thoughts, and said: "Back then, the Four Emperors of the Ancient Dynasty sealed the Seventh Human Realm, and I, like many people, followed their footsteps and came to the Demon Realm. ”

"If you came to the Demon Realm with the Four Ancient Emperors, wouldn't you be ...... age," Li Yi said.

The old man sighed: "Thousands of years ago, I didn't remember my age, and now I have forgotten it completely. I only remember that the Great Refinement Technique and the Holy Spirit Alchemy Technique were created when I was eight years old, so there were many immature places, and it was not until I came to the Demon Realm that I perfected those immature places and created a new alchemy. ”

The more Li Yi listened, the more frightened he became, but looking at the old man's appearance, it didn't look like he was lying.

Li Yi has always thought that his refining talent is not bad, but compared with this old man who created two major alchemy techniques at the age of eight, there is a sense of despair that is out of reach.

"Looks like he's the guy I'm looking for. Li Yi was secretly happy in his heart, and asked, "I don't know what the name of the alchemy technique newly created by my predecessors is?"

The old man said, "There is no name. ”

"No name?" Li Yi felt a little strange.

Both the Great Refinement Technique and the Holy Spirit Alchemy have names, so why doesn't the newly created Alchemy have a name?

The old man said: "My alchemy can refine everything in the world, no matter what magic weapon, it can be refined, all-encompassing, eclectic, so there is no name, the alchemy I created before is too rigid, it looks like a different style, in fact, there are defects that are difficult to make up." ”

Li Yi didn't seem to understand.

The old man said: "It's like I just asked you what to use to quench, you said that quenching with water and quenching with true qi is too rigid and doesn't know how to be flexible, and I use demon blood to quench and integrate the fierce qi in demon blood into this sword, which can greatly increase the power of this sword." ”

"Demon blood quenching?" Li Yi said, "Then no matter what magic weapon is refined, can it be quenched with demon blood?"

The old man said: "That's not necessarily, I use a material in this sword, called the Blood Stone, so I use demon blood to quench, if you use other materials, then naturally there is another quenching method." ”

Li Yi nodded and said, "I see." ”

"I don't know if the alchemy technique of my predecessor can refine immortal weapons?" Li Yi asked the question he wanted to ask the most.

"The immortal weapon is a legend, and only the Heavenly Dao Weapon can be promoted to an immortal weapon after countless tribulations. The old man said slowly, "But my alchemy is an exception, as long as there are immortal blueprints, plus enough materials and manpower, immortal artifacts can also be refined." Why do you ask this?"

Li Yi briefly explained the matter of the Sifang Palace, and finally said: "The person who taught my master to refine immortal accessories, you should know your predecessors, right?"

The old man's face showed a hint of sadness, and he sighed, "He is my closed disciple. Originally, I hoped that he would inherit my mantle, but I didn't expect that he would still die in the hands of the demon clan, I shouldn't have let him out of the city!"

After a while, the old man said, "Thanks to you, you have avenged my vain." ”

The old man's own cultivation was extremely high, and when he was young, he had also witnessed the demeanor of the Four Emperors of the Ancient Ages, so he was not very surprised that Li Yi killed the Quartet Tianzun.

Li Yi said: "Don't hide it from my predecessors, I came to Shura City this time to learn the method of refining immortal weapons, and one day in the future, I will be able to refine that immortal extermination sword into a real immortal weapon, and I beg my seniors to accept me as an apprentice!"

So saying, he knelt down.

The old man was silent for a while, and said: "Many years ago, I was able to prolong my life by taking strange fruits, but today, I am also at the end of my life, and it is not impossible for this alchemy technique to be passed on to you, but you have to promise me one thing." ”

"Senior, please speak. Li Yixi said.

The old man said: "For so many years, I have painstakingly studied the way of refining weapons, and although I have created this all-encompassing alchemy technique, I have not been able to refine a single immortal weapon. I hope that after refining the immortal weapon in the future, you will not only seek self-preservation, but also help others, so that all the human races will no longer be oppressed by the demon race, and there will no longer be any need to hide in this Shura City and live in secret!"