Each innate immortal aura contains an innate divine forbidden, and when the prohibition is refined, this innate immortal aura is refined. However, Chen Xian hadn't thought of how to use these scattered innate immortal auras before, he just simply sealed them, and now he could only sharpen the spear in battle, refining materials and refining these innate indestructible aura.

Fortunately, the prohibitions on these innate immortal spiritual light were not complicated, and after refining the soul seal and the experience of the Eastern Emperor Bell Empress, Chen Xian spent three days refining the seven wood attribute innate immortal spiritual light. And after three days of calcination, the wood attribute spiritual materials in the copper furnace were also refined into the purest materials.

"How can these seven innate immortal spiritual lights be perfectly integrated with other materials?" Although the innate immortal spiritual light was put into the furnace, Chen Xian hadn't yet figured out how to fuse it with other materials to refine it into a magic weapon.

Maintaining the temperature in the furnace and not causing the materials inside to condense into solids, he began to try to mix the seven innate immortal spiritual lights with the white-green liquid that gathered together.

"Bang ......"

The innate immortal aura is like a posthumous and independent immortal, which does not coincide with any of the materials, nor with the other six realms, or that they are like stones in a pit, smelly and hard, and the other materials are unwilling to accept them (there seems to be no difference between the posthumous independence and the stinky and hard?). Whenever Chen Xian wanted to fuse these things together, it would always cause a small explosion.

"It's really troublesome!" Chen Xian frowned, and after scolding secretly, he increased the input of immortal yuan, and the wind in the furnace was blowing, the fire was raging, and the temperature soared in vain.

Chen Xian continued to increase the input of true fire, and the materials in the furnace, except for the seven innate immortal spiritual lights, all the other materials were vaporized, turning into the purest white-green essence and being imprisoned in the furnace.

The material is vaporized, Chen Xianmian does not change color, and the amount of immortal yuan in his hands is still increasing. He wanted to see if he could melt these innate immortal aura through high temperature and mix them into the vaporized materials.

The temperature in the furnace continues to rise, and the flame turns from red to red to purple, red to lavender, light purple to dark purple, and then from purple to black.

The color of the flame is actually dark purple, and the reason why it looks black is because the flame temperature is extremely high, the void collapses, and the visual vision sees the scene of the destruction of the void, not the true color of the flame. But the air distorted, and the color of the void collapsing and destroying seemed to have become the true color of flame. At such a high temperature, the white-green essence that was originally floating in the furnace was completely vaporized, and there was no trace of existence at all, and they did not disappear, but were decomposed into particles invisible to the naked eye by the high temperature. This shows how terrifying the temperature of the flame in the furnace has been.

But even so, the seven innate immortal spiritual lights showed no signs of melting, but they gave Chen Xian a little hope, that is, when the flames turned purple and blackened, these innate immortal spiritual lights all shrunk into balls and turned into seven balls. Obviously, the increase in temperature also has an effect on these innate immortal auras, which shrink the heating area one by one to resist the calcination of the fire.

Although those innate immortal aura lights looked like they were about to be unable to resist, Chen Xian couldn't increase the temperature of the flame anymore and add the last degree Celsius that crushed the innate immortal aura, because he had already driven the immortal yuan input to the highest horsepower.

"According to the current rate of immortal yuan consumption, within three days, the immortal yuan in the body will be consumed, and it seems that I have no ability to melt these innate immortal spiritual lights. Chen Xian kept pouring immortal yuan into his position, and at the same time thought of countermeasures in his heart.

After thinking for a moment, Chen Xian withdrew his left hand that was attached to the different position, picked up the oolong sword that was lying across his legs, and communicated the sword spirit, causing it to shrink to a length of three inches.

"Drink!" Chen Xian broke off, holding a miniature version of the oolong sword in his left hand, and slapped it towards the position where his right hand was, and the sun on the sword body kept spitting.

When the oolong sword was about to hit the back of his right hand, Chen Xian quickly withdrew his right hand and pasted the oolong sword spraying the true fire of the sun to the place.

The flame in the furnace was dumb for a while, but it was soon replaced by a golden flame, and the temperature did not drop, but increased a little, after all, the quality of the sun true fire in the oolong sword was very high, and it was several times that Chen Xian Xianyuan converted the real fire through the pseudo-gossip furnace, and the temperature in the furnace did not decrease but rose.

The true fire of the sun in the oolong sword has accumulated three calamities, which can be described as endless, and the quality is high, Chen Xian decided to go with the seven innate immortal spiritual light in the furnace, and he didn't believe that he couldn't melt the seven spiritual light.

"The wind rises!" Chen Xian's heart moved, his hands were attached to the different position, and the immortal yuan rolled into the furnace, and after the formation was transformed, it turned into two wind dragons circling in the furnace and roared.

The true fire of the sun in the furnace became more and more vigorous under the blowing of the strong wind, and the furnace was full of golden flames.

The temperature in the furnace became higher and higher, and the golden yellow sun changed color more and more, blazing white like the midday sun, but ten thousand times hotter than the noon sun.

Under the high temperature, after three days and three nights, those innate immortal spiritual lights had a new reaction, and the wisps of essence were hung on the innate immortal spiritual light that shrunk into a round ball.

"It's working!" Seeing this situation, Chen Xian's spirit was lifted and his confidence increased greatly, and the natal immortal yuan was poured into the furnace from a different place without money, turning into a strong wind, making the true fire of the sun in the furnace burn more fiercely.

A month later, the seven innate immortal spiritual lights all turned into wisps of thin threads, but they remained continuous with each other and did not completely decompose.

Chen Xian was not in a hurry, and took two pills to supplement the immortal yuan from time to time to ensure that the wind in the furnace would not stop, and he believed that only by perseverance would he be able to refine these innate immortal spiritual lights.

A few days passed, and the wisps of innate immortal spiritual light spread out with a "poof", and turned into a talisman the size of a grain of rice, and these talismans, the wind could not blow, the fire did not hurt, it seemed very strong, and there was an eternal and immortal charm from it.

"Innate True Meaning, Immortal Divine Rune?" Chen Xian looked at the spirit runes the size of rice grains in the furnace, and was a little surprised in his heart, this turned out to be a thing with innate true meaning in the inheritance memory, called the Immortal Spirit Rune, and he didn't expect it to be something after the innate immortal spiritual light was decomposed to the extreme.

Chen Xian's divine sense swept and found that there were a total of 907,200 immortal runes in the furnace, and after calculating, each spiritual light actually decomposed 19,600 immortal runes, the number of one yuan.

"The culture of the one-yuan immortal rune is a prohibition, and each immortal rune is different from each other, but it is linked to a mysterious state, which is enough to form a close whole. If it weren't for the Sun True Fire cultivated by Taiyi in the Oolong Sword, even the Great Luo Golden Immortal would not be able to destroy these innate immortal spiritual lights, no wonder he dared to use the name of immortality, this is simply non-holy and unbreakable!"