"Well, this is a very precious book of Sword Forging, for the next period of time, I will stay here and guide you to learn the art of alchemy!" A thick book suddenly appeared in the masked woman's hand and handed it to Aotian.

After Aotian took the "Sword Casting Secret Manual", he briefly looked through it.

"Aotian, although you can refine Xuan Qi, you don't have to rely on a ground-level sword to drive the power of Xuan Qi, but you must know that there can only be one kind of Xuan Qi in a person's body at the same time, so if you get a better Xuan Qi in the future, you must extract the current Xuan Qi. At this time, you need to refine the original Xuan Qi into a ground-level sword so that you can continue to use the energy of this Xuan Qi. So this alchemy will definitely be of great help to you in the future!" the masked woman continued.

Hearing this, Aotian seemed to understand the importance of the alchemy technique to himself.

If you become a swordsmith, you can not only improve your strength and social status, but also allow yourself to drive multiple Xuan Qi energies at the same time in the future, and obtain more powerful power.

It's exciting to think about!

"Well, the juniors will definitely work hard to learn this alchemy technique!" Aotian nodded heavily, and said extremely excitedly.

"Well, you can read this Sword Casting Secret Book carefully later, and I will come here again in three days. After saying this, the masked woman walked again into the depths of the woods, and disappeared after a while.

After seeing the masked woman leave, Aotian immediately sat down on the spot, holding the "Secret Book of Sword Forging" in both hands and reading it carefully.

In the next three days, except for some necessary cultivation, Aotian spent the rest of the time in the room, reading the "Sword Casting Secret Book", so he finally read it carefully on the third day.

After reading the "Secret Book of Sword Forging", Aotian only had one feeling - shock, a shock from the heart.

This "Secret Book of Sword Forging" can be described as broad and profound, condensing the exquisite sword-forging skills that have been studied by countless generations. It makes people seem to see the long river of the development of the art of sword casting, as well as the long years, and the generations of swordsmiths who used their wisdom and wisdom to jointly forge the myth of refining.

The first part of the Secret Book of Sword Forging is the Materials section, which introduces all the materials needed to forge a sword. The second part is a lesson from the past. They are all truthful records of the sword-casting skills and perceptions studied by many predecessors.

The third part is the chapter on the art of sword casting, which tells about the new art of sword casting that has been developed and improved.

And this sword-casting technique is actually from generation to generation, constantly inheriting the experience of predecessors, learning from each other's strengths, and then combining their own understanding, improving step by step, and finally refining the best sword-casting technique.

"This "Sword Casting Secret Book" is really a treasure, I'm afraid that even the royal family and the two major sects may not have such a precious sword casting secret book, I really don't know what the origin of the masked senior of Lu Dao is, he actually has such a precious secret book!" Aotian sighed in his heart.

"Tomorrow is the day agreed by that senior, tonight I will read the sword-forging technique carefully and deepen my memory!" muttered to himself, and Aotian immediately read the third part of the "Sword Casting Secret Codex" again.

After a long time, he closed the "Secret Book of Sword Forging", and then lay on the bed, and began to recall in his heart what he had just seen, constantly digesting and understanding what he saw and understood.

The next day, Aotian woke up early and went to the woods behind the family mansion, and the mysterious masked man appeared shortly after.

"Senior, I've already read the Secret Book of Sword Forging!" Seeing the masked woman appear, Aotian immediately stepped forward to report on his studies.

"Very good! From today onwards, I will be instructing you to learn the art of sword forging! But this forest is not yet hidden, I will take you to another place!" As she spoke, the masked woman didn't wait for Aotian to reply, so she grabbed him and flew directly from the ground, flying into the distance.

Flight!

This masked man can fly, is she a Martial King, a Martial Emperor, or a higher-level powerhouse?

Aotian was shocked in his heart, and couldn't help but be even more curious about the origin of the masked man beside him.

Looking at the rapidly receding woods and the city below, the blood in Aotian's body boiled again.

It's a really good feeling to be free-flying!

After a long time, the masked woman led Aotian to an empty cave, and then stopped.

When she arrived in the cave, the woman immediately took out a beautiful stove about half a person tall from the storage ring.

"This is a sword-casting furnace, in fact, it is also a kind of sword-casting equipment refined by the refiner, this sword-casting furnace can transform blood or Xuan Qi into pure flames to smelt materials, and can well let the spiritual power penetrate into the furnace, control the furnace fire and the qualitative change, fusion, deformation and so on of the materials in the furnace!"

And Aotian is actually no stranger to the sword-casting furnace in front of him, and he has also seen the sword-casting furnace in the "Secret Book of Sword Casting", and has a certain understanding of it.

"Today you practice melting all kinds of materials, this is the first step in sword casting, and it is also the easiest step!" said the masked woman as she took out a few pieces of refined iron ore from the storage ring and threw them all into the sword-forging furnace.

"Let's start, follow the method in the "Sword Casting Secret Codex", inject Xuan Qi into the sword casting furnace, start to turn into flames, and melt these materials!"

"Hmm!" Aotian nodded, immediately came to the sword casting furnace, pressed his hands into the two grooves on the sword casting furnace, and immediately activated the True Yang Xuan Thunder Qi and injected it into the sword casting furnace.

Suddenly, a scorching flame rose in the furnace, quickly engulfing the almost refined iron ore.

Gradually, several pieces of refined iron ore were melted by the scorching flames, and finally turned into molten iron and rolled in the sword-casting furnace, emitting a pungent smell.

"These pungent smells are all gases that are incinerated by some impurities in the material. The cleaner the impurities are removed, the purer the resulting material, which will have a crucial impact on the quality of the sword you end up casting. The masked woman explained.

Hearing this, Aotian didn't speak, just nodded seriously.

At this moment, the masked woman suddenly took out a few more magic cores and threw them into the sword-forging furnace.

"Aotian, when you melt these demon cores next, try to use your spiritual power to feel the temperature of the flame in the furnace, feel the melting process of the demon core, if you can, you also try to use your spiritual power to control the temperature of the flame, as well as the flow of materials, as if controlling the flow and change of blood and qi in your body. The masked woman said again.

"Okay!" Aotian nodded slightly, and immediately followed the method recorded in the "Sword Casting Secret Book", closed his eyes, and tried to pour his spiritual power into the sword casting furnace in front of him.

Spiritual power is an ethereal force, and it is extremely difficult to control it, generally speaking, martial cultivators rely on spiritual power in their inner vision, and the control of their own blood and qi actually depends on spiritual power.

However, to control the mental power to perceive and control things outside the body is definitely not something that ordinary people can easily do.

This requires talent, and this talent is the key to becoming a swordsmith.

Of course, Aotian's talent is naturally very good, he was born with a very good mental perception and control, so after only a few attempts, he successfully poured his spiritual power into the sword-casting furnace, feeling the furnace temperature and the melting process of the demon core.

Eventually, he began to try to control the temperature of the furnace fire and the flow of the material as it melted into a liquid state.

"Great, I did it!" Aotian was secretly happy in his heart, he had just really used his spiritual power to change the temperature of the furnace fire, and even controlled the flow of liquid in the furnace.

At this time, the masked woman on the side also noticed the change in the temperature of the furnace and the flow of liquid in it. A hint of approval suddenly flashed in his eyes, he nodded slightly, and said with admiration in his heart: "This kid did it so quickly, this talent is really amazing, it seems that he will really become that peerless powerhouse in the future!"

The cave was utterly silent, except for the sound of the fire rising and the liquid tumbling.

Aotian closed his eyes tightly, and practiced over and over again to use mental power to control the temperature of the furnace fire and control the flow of liquid materials. But this kind of practice is very consuming of mental energy.

So after seeing Aotian practicing for more than an hour, the masked woman on the side asked him to rest in place for a while. After his mental strength was almost recovered, he was allowed to continue to practice smelting materials, as well as using his mental power to control the furnace temperature and the flow of material liquids.

In this way, the first day of learning in Aotian ended in such repeated exercises.

Before the sun set, the masked woman sent Aotian back to the woods behind the Aotian mansion again, and told him to come here again tomorrow morning to find him.

The next day, Aotian was taken to the cave again by the masked woman.

"From today onwards, I will officially begin to guide you to learn spiritual power casting, you should also know that the spiritual power casting is the main process of sword casting, and it is also a crucial process, the success of sword casting is the most successful, and the final quality of the sword is basically determined by this process. You can open the Sword Casting Secret Book now, and read the method of casting spiritual power again!" the masked woman said in a serious voice.

Hearing this, Aotian immediately took out the "Sword Casting Secret Book" from the storage ring, and carefully read the method of casting spiritual power again.

"There is no shortcut to learning the method of casting spiritual power, and what is recorded in the "Secret Book of Sword Casting" is only theoretical knowledge, and it is impossible to learn it without repeated practice again and again!" After seeing Aotian put down the "Secret Book of Sword Casting" again, the masked woman spoke.

With that, she took out another piece of dark iron ore from the storage ring, along with two other metal ores, and put them in the sword-forging furnace.

"Ready to start, yesterday you were able to freely control the temperature of the furnace fire and the flow of materials and liquids, which can be regarded as a first glimpse of the method of spiritual power casting, but the next practice will be many times more difficult than what you practiced yesterday. But every time you practice, you have to treat it as if you are really refining the sword, and the goal of every time should be to refine a yellow-level sword, understand?"

"Understood!" Aotian replied cleanly, his handsome face full of determination.

......