"What is natural magnetite?" Liu Lang asked puzzledly.

Chen Xiao took a few deep breaths to calm his excitement. He said, "It refers to iron ore that naturally carries permanent magnetism." Seeing Liu Lang's confused look, Chen Xiao simply covered it for him to see with his own hands.

He took out the smelting furnace from the storage box and placed it on a relatively flat surface.

The smelting furnace that suddenly appeared, although it was the smallest one, was still as tall as a person. Chen Xiao skillfully activated the power array below, consuming the energy in the spirit beads, continuously converting it into heat energy, raising the temperature in the smelting furnace.

Watching Chen Xiao throw the ore into the furnace that was beginning to burn red, Liu Lang said incredulously: "Chen Xiao, you are actually an equipment refiner!"

"Not really, I only know a little bit." He said without turning his head.

Chen Xiao's mind was completely focused on natural magnetite at the moment, and he didn't care at all about hiding the fact that he knew how to refine equipment in front of Jing Hui, who was not even familiar to him yet.

He stared intently at the boiling molten iron that was melting into an orange-red liquid. He had to be extremely careful because the melting point of this magnet was very low. In order to succeed in one go, he had to cool it down in time, even if it contained impurities.

After the molten iron flowed into the mold, Chen Xiao used tools to clamp it for quenching. After cooling, the magnet became a square block only the size of a little finger.

Chen Xiao held a magnet in one hand and a curled piece of iron in the other - this was a leftover from his practice. He let go of the iron sheet, and it was attracted by the magnetic field and flew towards the magnet, where it was immediately sucked onto it.

Liu Lang opened his mouth slightly in surprise.

He had seen magical instruments with traction before, but this piece of iron was not a complicated artifact. It was just a simple refinement, but it had such attraction. This was the first time he had seen it.

Jinghui raised her eyebrows.

Chen Xiao said: "This magnetic iron can attract metals containing iron. At the same time, this magnetic field itself contains yin and yang poles. Yin and yang attract each other, while magnetic fields of the same nature repel each other."

Jing Hui said clearly: "I know, this is the repulsion stone."

Chen Xiao turned to look at him in surprise: "Master Jinghui knows about this kind of ore."

Liu Lang also looked at Jing Hui with interest.

Jing Hui said, "Yes, this is not something particularly rare. It's just that I never knew before that the Barrier Mountain is actually made of repulsion stone. This repulsion stone can be refined into iron. If an uninformed refiner uses this iron to make a magical instrument, the spiritual properties will be messed up and it will be directly scrapped. Because of this characteristic, the iron refined from the repulsion stone is also called scrap iron, which is the most useless metal."

Chen Xiao's boiling joy was cooled by Jing Hui's words. He thought this was a very significant discovery, but he didn't expect that the immortal cultivation world had already discovered it.

Jing Hui said, "But not all refiners are unable to use this kind of magnet. I heard that only the Grand Master-level refiners can use this ore to make magical instruments with balanced spiritual properties, and they also have a special ability to seize metal magical instruments."

Chen Xiao said: "I see, no wonder I have never heard of it before."

Liu Lang asked curiously, "You haven't heard of it before, how do you know about this natural magnetite?"

Chen Xiao paused and said, "Since we are talking about it today, I will tell you two. I learned Feng Shui by chance. It was this inheritance that has become a lost art that told me that I can use this kind of magnet to make auxiliary tools."

Liu Lang and Jing Hui did not show any surprise. In this world of immortal cultivation, there is no shortage of adventures. Even if they have not encountered them themselves, they have heard of them. Chen Xiao can only say that he is lucky to have such an opportunity.

Once again, Chen Xiao thanked the world of cultivation for its breadth and generosity. He said, "I have asked around in Gengsheng and Taizhen Heaven Realm before, but no one knew about it. I always thought that this kind of magnet had become extinct."

Jing Hui said, "Maybe the names are different in ancient and modern times. If you just say repulsive stone or scrap iron, you might be able to find out. But..." He pondered for a moment, "It is not certain that you can find it in the Heaven Realm. After all, this is a unique ore in the Shenzhou Atlas, and it is useless scrap iron. Except for the top refiners, there must be very few people who know about it."

Chen Xiao thought about it and understood why this kind of magnet was not valued. In addition to not being able to be used to make magic tools, its most important function of guiding direction has never been discovered, which is also one of the reasons.

Chen Xiao had long known through the compass that the direction of this world was a very strange and messy existence.

At the time of Gengsheng, the north-south direction is not the same as the north-south direction indicated by the compass, and there is an angle between the two. After reaching Taishan, the angle becomes larger. This shows that the directions of Gengsheng and Taishan are different.

Why was the compass made of magnet able to accurately point out the direction in the previous life? It was because the planet he lived on was itself a huge magnetic field. The center of the earth contained a large amount of magnetic magma, which resulted in two magnetic poles, north and south.

But the heavenly world here is a flat continent. The whole world is flat. There is no center of the earth or any South Pole or North Pole.

Without a magnetic field, there would naturally be no space for a compass made of a magnet to survive.

Chen Xiao thought of a question that had always been in his mind, that is, if the Heaven Realm Continents in this world do not have a magnetic field, then which direction is the magnetic needle always indicating?

Now, he thought he knew the answer.

The direction pointed by the compass must be this atlas of China that exists somewhere unknown!

Because only here is there a magnetic field, it will attract the magnetic needle to move towards here.

However, another question arises. Magnetic fields are relative, so where does the other direction lead to?

Thinking of this, Chen Xiao had a vague premonition that if he could figure out this question, he might be able to uncover the secret of the origin of this world!

However, the answer to this question is still far away.

The goal placed before Chen Xiao would be equally great and remarkable if he could achieve it.

If Chen Xiao can use the Shenzhou Atlas as a guide and use the currently known angles of the heavenly realms, he will be able to calculate the coordinates of a certain heavenly realm in the void!

If he thought further and gave him a reference condition, he could even deduce the location of all the heavenly realms in the void, including those heavenly realm worlds that had never been discovered by anyone!

The more Chen Xiao thought about it, the more excited he became, and he couldn't help but tremble slightly.

Liu Lang noticed his abnormality and patted his shoulder: "Chen Xiao, are you okay?"

Chen Xiao suddenly came back to his senses and tried his best to restrain himself from thinking too much.

He shook his head and said, "I just can't help but feel a little excited when I think about making auxiliary tools soon."

He looked at Liu Lang and Jing Hui and pleaded, "Can you give me some time so I can get more magnets?"

Liu Lang nodded without hesitation, and Jing Hui also said: "Anyway, we are currently in the Barrier Mountain, which means that even if there are evil cultivators or Taoist cultivators tracking us, they will not be able to find us easily. You can go mining without worry, there is plenty of time."

Chen Xiao thanked the two people gratefully and started mining with a small pickaxe.

In order to save time, Liu Lang and Jing Hui also helped him pick.

Chen Xiao used a smelting furnace to roughly refine the ore. After it turned into iron ingots, the magnets did not take up so much space.

Chen Xiao only used it to make a magnetic needle, and it took only an hour to complete all the refining. He also made a small magnetic needle, which was embedded in the compass he made for Shen Yanxing with his vital energy after he learned how to refine the weapon.

When the magnetic needle is placed in the center of Tianchi, the entire compass seems to come alive. As the magnetic needle shakes with the movement, it blends seamlessly into the field of the compass, making the field of the compass stronger and more stable, becoming a true Feng Shui tool.

Chen Xiao suddenly realized that the magnetic field was part of the earth veins, and it was naturally in harmony with the vitality. Perhaps for other refiners, it would be extremely difficult to control the magnet to refine magic tools, but for Chen Xiao, a Feng Shui master, it was extremely simple.

He even thought of using magnets to strengthen the Soul-Suppressing Bell when he had time, making the aura attack of the Soul-Suppressing Bell even stronger.

However, until the speed of his energy circulation is increased, there is no way to improve the disadvantage of the Soul-Calming Bell's attack having a long preparation time.

The Maze Mountain confuses perception, and even with a compass there is no way to tell the direction. However, Chen Xiao used the distribution of plants and the position of the yin and yang slopes to determine the approximate direction, allowing them to successfully leave the place before dark.

After coming out, Chen Xiao solemnly marked the location here on the map that he had already recorded in his mind.

Perhaps their luck had run out, for they had not walked far when they ran head-on into a group of evil cultivators.

There were five people in this group of evil cultivators, two of them were in the Jindan stage and three were in the Foundation Establishment stage. With the cooperation of Chen Xiao and Jing Hui, the fight was quite difficult.

Even though Jing Hui is a Nascent Soul cultivator, after figuring out that he is good at defense but weak at attack, these evil cultivators deliberately bypassed him and focused their attacks on Chen Xiao and Liu Lang.

Especially Liu Lang. After the spiritual energy bullets that Chen Xiao distributed to him were used up, he only had the improved version of the mechanical hand arrow as a means of attack. After a long time of fighting, it was discovered that he was strong on the outside but weak on the inside, which became his flaw and weakness.

In order to protect the two of them and attack the evil cultivators, Jing Hui can be said to be running around all the time, and every battle is very hard.

This made Chen Xiao and Liu Lang very grateful to him. If it weren't for Jing Hui's efforts, the two of them would have died at the hands of the evil cultivator long ago.

Chen Xiao only hated that the preparation time for his most powerful attack, the Soul-Calming Bell, was too long, and Liu Lang was unable to effectively restrain him and give him enough time to read the bar.

The five evil cultivators were worn down to death, and all three of them were exhausted.

Sitting by the campfire in the camp at night, Chen Xiao felt that he couldn't go on like this. He had to become stronger and break through to the Golden Core Stage as soon as possible.