Even at night, the departments of Wudao College never closed their doors. Su Dong entered the wooden house of the Casting Department, opened the floor and walked into the basement.

Almost all of Wudao's facilities are built underground, because underground is more susceptible to the influence of the pure spiritual power of the valley, making it easier for students to study and practice.

There is no one in the workshop of the casting department. Eight casting tables are lined up. Although they are not as advanced as Su Dong's ice casting rooftop, they are still quite good products, with excellent texture and simple shape.

Su Dong chose one at random, and then took out the most common piece of steel from the star ring, weighing about a hundred kilograms.

Shenlu Pavilion only has a very simple description of the spirit quenching technique, and there are no specific details on how to operate it. After all, this technique of smelting metal with spiritual power has been lost for a long time. Some historians have seen similar things somewhere, and they will

Just write it in the book.

Su Dong thought about it several times in his mind and said to himself: "No matter how much you think about it, it is better to do it yourself. As the saying goes, practice will reveal the truth."

Snap~

The protection function of the casting platform was turned on, and Su Dong began to pour his spiritual power into the piece of steel. Under Su Dong's urging, some white threads that were difficult to detect with the naked eye floated out from his palm. This was spiritual power.

, a very powerful force originating from nature.

What Su Dong has to do is to pour spiritual power into the metal, which is like pouring water into a bottle until it is completely filled.

Spiritual power is invisible, fine and compact. It is not difficult to wrap a piece of steel with spiritual power, but it is very difficult to completely penetrate the spiritual power...

…

In the morning, old man Yisuo got up relatively early. He would always stand in front of the mysterious temple before the sun rose. When the sun jumped above the horizon, he would walk around.

For those students who stay in Wudao all night to practice or study, old man Yisuo will always smile and then nod gently. In his opinion, no matter how good the talent is, it requires hard work to cooperate. Those who stay in Wudao to study all night

Students are simply role models of immorality.

This morning, Yisuo checked his territory as usual. When he saw Su Dongyin's sullen face, he immediately laughed.

Ever since he gave Su Dong the piece of pig iron, he often saw Su Dong with a sullen face, as if someone owed him money. Su Dong must have been wrestling with the piece of pig iron all night and returned without success.

Su Dong also saw Yisuo, greeted Yisuo proactively, and then left thoughtfully.

Soon, the old man Yisuo transferred to the casting department. The great foundry master Hai Buwei was also used to getting up early and was one of the most diligent students under Yisuo. Yisuo had always admired him.

It's just that Hai Buwei's face is uglier than Su Dong's, which makes Yisuo curious.

"What's going on?" Yisuo asked curiously. A trace of green smoke could be seen at the door of the Casting Department, and there was also the smell of something being burned.

Hai Buwei said with a dark face: "Teacher, go and see for yourself, the foundry department's studio was completely destroyed by Su Dong!"

"Destroyed!?" Yisuo was startled and hurriedly lifted up the floor and entered the basement.

Standing in front of the foundry department work center, Yisuo's eyes widened. It looked like the place had just been looted!

Not only looting, but also a fire was set off in the end! One of the casting benches was burned black and smoke was rising.

"What on earth is going on!?" The old man Yisuo frowned and entered the studio to check.

I saw that all the damaged casting tables were exactly the same, as if someone had dug a deep hole with a giant drill, causing the casting table to be completely scrapped!

At this time, Hai Buwei also walked in and Yisuo asked in a deep voice: "What exactly caused this situation?"

Hai Buwei shook his head and said: "I have never seen the same example in my life. The forger adds spiritual power to the weapon. I don't understand. What is Su Dong doing with the casting platform? These marks are due to

Spiritual friction occurs, but how did he create such powerful spiritual friction that the casting platform could be completely scrapped!?"

Yisuo curled his lips, no need to ask, Su Dong must have worked hard on that piece of pig iron. It seemed that he had underestimated Su Dong's determination. He would never give up until the piece of pig iron was smelted.

"That's all, it's just a few casting tables. Follow me to the warehouse to move a few more and have someone clean this place up." Yisuo said in a deep voice.

Hai Buwei nodded silently, and the two of them walked outside, not noticing that there was a very fine layer of metal powder on the ground. It seemed that someone had broken the metal apart, crushed it, and sprinkled it on the ground.

…

After answering the question, Su Dong felt much better. He had breakfast with Hua Yingyue and the others, and drove the mythical beast Gu Tian for a spin outside the academy.

Gutian is a very magical boy. He never lets Su Dong accompany him. Su Dong has no time to take care of him, so he goes outside to play by himself and runs wild. Unlike other mythical beasts, he needs his master to lead him outside every day.

.

It's just that Gutian has become a scourge nearby. All the larger animals in the jungle have been eaten by this guy. Recently, he has extended his poisonous hands to further places. I really don't know how thin this guy is.

, how to eat so much food.

Of course, Gutian's favorite is the snacks made by Su Dong. Su Dong is very busy now, so he has to send him a big bag every few days for him to eat happily.

Stop in the mountains away from the college. There are waterfalls and springs here, and the scenery is beautiful.

Flying is indeed a magical sport. After hovering in the air for half an hour, Su Dong felt refreshed. Seeing Gu Tian enjoying his meal made Su Dong even happier.

Daoxing Mountain is where the dragon veins are located. Once you leave the valley, you will lose that kind of pure spiritual power. Su Dong calculated the results of last night's experiment with his hands on the sand while watching Gu Tian eat.

"Still thinking about what happened last night?" Huan Yu asked.

Su Dong nodded and said nothing.

Huan Yu said: "Actually, you are only one step away from success. I was originally worried that your entire spiritual power would explode, but the result was beyond my expectation. When your entire spiritual power is mixed with metal, it will explode."

It seems to be a natural barrier that prevents the spiritual power from being so violent."

What Huan Yu said was the truth. Originally, Su Dong's spiritual power could easily explode, but adding metal prevented the spiritual power from colliding with each other and made it extremely stable. The damage to the casting platforms was not the cause of the explosion, but the explosion.

Caused by loss of control of spiritual power during high-speed rotation.

The so-called spirit quenching technique is to replace the traditional furnace with spiritual power. Ordinary casters throw metal into a high-temperature furnace for smelting, but spirit quenching involves throwing metal into the wildly rotating spiritual power for purification.

Su Dong has done well so far. Facts have proved that Su Dong's entire spiritual power is suitable for performing the spirit tempering technique, but he cannot stop when it is time to stop.

Su Dong accidentally discovered a powerful force, which is the centrifugal force generated by the high-speed rotation of spiritual power. The casting table is an object specially used to control spiritual power. In terms of strength, there is probably nothing stronger than the casting table in the world.

But Su Dong's small spiritual storm made of spiritual power and metal can cut the casting platform in half in one breath!

What a crazy power this is!

As a warrior, Su Dong immediately realized the incomparable combat power of the spiritual storm. If this power were applied to the enemy, Su Dong believed that even the God of War would knock off one of his legs!

The high-speed rotating spiritual power is like gangrene attached to the bones, and will stick to the casting platform. Unless the spiritual power is completely exhausted, it will never stop.

What Su Dong is most proud of is that he has more spiritual power reserves than others. Suppose he uses so much spiritual power to create a killing storm! That is not a matter of killing people, but destroying the world!

Snap~

Su Dong clenched his fists. It was very challenging to apply spiritual power storm in battle. Su Dong could not do it yet. Using spiritual power storm to smelt metal was also a unique skill. Su Dong had not mastered it either. He clearly discovered a rare

The power to destroy everything, but cannot be used, is a headache.

Silently standing up, Su Dong took out another piece of steel from the star ring and put it in his hand.

"Let's rest for a while. I haven't slept for two days and two nights. Why are you working so hard?" Huan Yu said with some distress.

Su Dong is a lunatic when he is serious and will never sleep until he solves the problem. Huan Yu is really afraid that Su Dong will one day go crazy because of being too persistent.

"I have stayed in Wudao for too long, and the purity of my spiritual power is much higher than before. Now I have taken in some impure spiritual power. It is just a good time to test whether the technology of spiritual power storm is pure.

Is the spiritual power suitable or the messy spiritual power is more suitable? Moreover, I also want to try what will happen without the casting platform." Su Dong said calmly while making preparations.

There has never been a real genius in the world, and real geniuses are all polished. The world only saw Su Dong killing everyone. His formations, martial arts, and casting skills were all in a mess, but few people noticed how hard he worked behind the scenes.

How much effort it took.

Snap~

Su Dong put his hands together and used spiritual power to hold the piece of steel in his hands. A large amount of spiritual power spurted out, pouring into the steel bit by bit, tearing it apart inch by inch!

After a night of training, Su Dong's skills became more and more proficient. After a few minutes, this ball of spiritual power mixed with metal moved at high speed, tearing a piece of steel into powder!

The next step is to use high-speed centrifugal force to generate temperature in the steel for melting!

You can see that the speed of the spiritual power is getting faster and faster, and sparks are constantly flying out. Those are impurities in the steel, which were thrown out during the high-speed centrifugal motion!

"No way! It turns out that the purer the spiritual power is, the harder it is to temper it! Your current state is much better than when you were without a way!" Huan Yu said with wide eyes.

Su Dong was also very excited. His hands suddenly exerted force and closed in the middle. A piece of steel that was originally the size of a basketball was compressed by Su Dong to the size of a fist!

The fiery red steel ball is simply more dazzling than the sun!

Suddenly, Su Dong's expression changed drastically!

"Oops! Out of control again!"

The mythical beast Gu Tian was very alert. He was originally staring at the beautiful fireball in Su Dong's hand. When he saw something was wrong with Su Dong's face, he immediately bit Su Dong's belt, flapped his wings, and brought him into the air with a clatter.

Boom~

At this moment, it was important to save his life. Su Dong quickly threw the fireball in his hand towards the ground, and saw fierce flames rising into the sky, literally lifting half of the mountain!

A good mountain was reduced to flat ground in the blink of an eye. What a terrifying attack power this is!
Chapter completed!