......

In a cave in the upper reaches of the Yinsha River, Gao Cheng held the magic trick in his hand, and a red flame burned in front of him, and he carefully controlled the mana and input energy into this flame. Boom, the flames rose, and the center of the fire even appeared blue and white.

"Tiangang Spiritual Fire...... If you want to use Xiao Tiangang Refining Treasure Recipe to refine the magic weapon, you must first practice this flame, Tiangang Spiritual Fire can quench the material of the material, and carve the forbidden method inside the magic weapon blank!"

The fundamental method of Xiao Tiangang refining treasure is the Xiao Tiangang forbidden law, this set of forbidden methods has a total of 36 changes, each change can refine a magic weapon, these 36 changes are divided into two parts, of which the top grade eighteen methods can refine a magic weapon with spirituality, which can be called a spiritual treasure.

The eighteen methods of the lower grade can only refine ordinary magic weapons, of course, whether it is a spiritual treasure or a forbidden method of a magic weapon, it must rely on the quality of the magic weapon material, if there is no good material, even if Gao Cheng cultivates Xiao Tiangang's forbidden method to the peak, he will not be able to refine the spiritual treasure with ordinary materials.

The alchemy furnace below the Oolong Pond is the magic weapon made by the predecessor master countless years ago with 10,000 years of cold iron, which is called Feng Tianding, and it is also the magic weapon that ranks third in the eighteen methods of the lower grade.

Gao Cheng has more than five hundred and ninety years of mana, and there is no problem in practicing the Tiangang Spiritual Fire, but due to the limitations of mana and materials, only the last few treasures of the Eighteen Methods of the lower grade can be refined now. And there is no guarantee of refining success.

"The last few magic weapons of the eighteen methods of the lower grade, if you want to refine to perfection, there are not a few materials needed, among these magic weapons, the one with the least restrictions on materials is the seventeenth ranked soul suppression nail!"

Gao Cheng kept thinking about the changes in the Xiao Tiangang Forbidden Law, and the thirty-fifth change was the Tiangang Town Soul Forbidden Law. By carving this forbidden method into the best materials, you can refine a cultivator who specializes in restraining the changes in divine thoughts. If he didn't have a spell or magic weapon for mental defense, he would lose most of his life if he was hit by the Soul Suppression Nail.

The more he comprehended the Xiao Tiangang Forbidden Law, the more vigilant Gao Cheng was in his heart, there were countless magic spirit treasures in the world, and the second-to-last change in this forbidden law could cause fatal damage to him.

This is just a magic weapon, if you encounter a more powerful spiritual treasure, wouldn't you be scattered after taking a beating?

Gao Cheng secretly reminded himself that he must act in a low-key manner when his strength does not reach a certain level, and after a while, all the Tiangang spiritual fire in front of him turned blue and purple, Gao Cheng stopped thinking, and as soon as his mind moved, the spear erected next to him was swallowed by the firelight.

This spear is just a weapon used by the Silver Sand Cave Mansion to give to the boss of the monsters, and it has no characteristics other than good materials. After being thrown into the Tiangang Spiritual Fire, the spear lasted for a stick of incense, and then it slowly turned red and softened, and gradually turned into a ball of black-red molten iron.

"Although the soul suppression nail made with Xuantie is not perfect, it is also of the highest grade! With a magic weapon, my strength can increase several times, and even in the case of a sudden sneak attack, a demon king with a thousand years of mana like Clam Qiangu will also capsize in the gutter!"

The thought in Gao Cheng's heart flashed, the Tiangang spiritual fire was burning, and the molten iron evaporated with wisps of green smoke, which were all impurities inside. When the iron juice turned pure red, he began to use his mana to outline the Tiangang Town Soul Forbidden Method......

Half a day later.

The molten iron in front of Gao Cheng's eyes had condensed into a three-inch-long iron nail, and the nail exuded a little halo, constantly devouring the aura in the void, as well as the mana in his body.

"Condensation!"

Gao Cheng let out a low snort, and suddenly urged all the mana to pour into the iron nail, and as soon as the halo was released, the three-inch iron nail was suspended in the air out of thin air, and no abnormality could be seen.

"Finally the refining has been successful!" Gao Cheng breathed a sigh of relief, refining the magic weapon for half a day, almost emptying out all his spiritual power and mana, and his body was a little weak.

However, after paying such a price, there is naturally a huge gain, this soul suppression nail has been successfully refined, and it has reached the level of an ordinary magic weapon!

Gao Cheng's mind moved, and he entered the mana into the soul suppression nail, and when he heard a sound, the iron nail turned into a black light, shuttling back and forth around the cave, fluttering, and dozens of deep holes appeared in the hard mountain walls on both sides.

Just looking at such a scene, the power of the Soul Suppression Nail is far above the Three Yin Arrows. And it has not yet exerted its ability to suppress the soul of the gods.

After successfully refining the magic weapon, Gao Cheng had an extra hole card in his hand, and his heart was much more stable, so he got up and left the cave and flew into the cave in the upper reaches of the Yinsha River.

At this time, Gui Wuzhong and the Water Rhino Demon were waiting anxiously in front of the door of the cave, and they were turning around anxiously. Gui Wuzhong's eyes were the best, and he immediately found Gao Cheng's figure.

He breathed a sigh of relief and hurriedly shouted, "Chief, there is news from Yinsha Water Mansion, let all the leaders go to Shui Mansion within three days to discuss matters!"

Gao Cheng frowned slightly, and asked, "What is the reason for going to the Water Mansion to discuss matters?"

Gui Wuzhong shook his head and said: "I don't know about this, but not long ago, the Golden Snake Mountain fought with two little babies in a row, and the monsters on the mountain had a lot of losses.

"Okay, you and the water rhino demon continue to guard the cave, I'll go and see what the clam is going to do!" Gao Cheng said, and then no longer returned to the cave, he directly cast the water control method, turning into a ghostly light in the water and swimming quickly downstream.

Yinsha Water House.

A ghostly light stopped in the river, revealing Gao Cheng's figure, he looked forward, at this time, a team of patrolling water demons guarded the periphery of the water mansion, and in the depths of the cave mansion, there was a strong demonic aura hidden. It seems that the nine youkai leaders in charge of the waters of the Silver Sand River have almost arrived.

Gao Cheng took out the boss token, and then came to the door of the cave, the patrolling monster saw a golden robe human appear in front of him, and when he was about to shout loudly, he suddenly saw the token in the other party's hand.

"Huh, it's the Blackfish Leader!"

The patrolling water demon only sensed carefully at this time, and found that Gao Cheng had a faint demonic aura on his body, and the qi and token matched, so he hurriedly bowed his head and saluted, and then got out of the way and asked Gao Cheng to enter.

In the waterhole in the cave, several fish-headed monsters stood on both sides with spears and tridents, and one of the monsters was Yu Qing who led Gao Cheng into the cave.

In the middle and lower reaches of the Yinsha River, more than two hundred years of mana have been able to suppress a body of water.

It's not like everywhere that there are seven or eight big demons with three or four hundred years of mana like upstream. There are even youkai that have transformed into humans. At the beginning, Gao Cheng was just a spirit with less than a hundred years of mana, and when he went upstream to take charge of the waters, all the monsters thought that he would definitely die.

Yu Qing and several other monster leaders were talking, and suddenly a few monsters were startled when they saw Gao Cheng, who had transformed into a human, and thought that humans had come to Shuifu. However, Yu Qing quickly recognized the aura on Gao Cheng's body, and a pair of fish eyes were stunned suddenly, and said in shock: "This breath ...... You're the leader of the Blackfish?"

"What? He's the leader of the black fish? How did he turn into a human form? Could it be that the demon king made the move?"

"It's not a dot, his human form looks perfect, he must have cultivated some kind of superior exercises, and he transformed himself......! Doesn't this mean that he has more than five hundred years of mana!"