Zheng Ren'an arranged Jiang Danwu to the corner of the refining room, and after explaining for a while, he took out several star stones that had already been carved, and landed with a wave of the star stones, and a light blue light curtain immediately rose in front of Jiang Danwu at that moment.

"This is ......" Looking at the faint light shield in front of him, Jiang Danwu asked with some confusion.

Zheng Ren'an said with a smile, "This is a defensive star array, which can isolate the heat wave of some sparks, after all, your cultivation is still shallow now, I'm afraid you won't be able to stand it for a while." ”

"Understood, then please start with the master. Jiang Danwu naturally didn't think that he, who had already begun to cultivate the star power of the Burning Sun, would not be able to withstand the scorching heat of Zheng Ren'an's spark, instead, his eyes kept sweeping back and forth over the star stones on the ground, and recalled the knowledge of the star array he had learned in the library to confirm it.

"Okay!" Speaking of this, Zheng Ren'an suddenly turned pale and said: "No matter what happens for a while, you can't leave this star array, you can't make any sound, otherwise the star sword refining will be wasted, not only will you have no use for the star sword, but you will also have to compensate me for the materials." ”

"It's good. Of course, Jiang Danwu knew that neither alchemy nor refining could be disturbed by others, and it was already a great blessing for Zheng Ren'an to let himself watch here.

Zheng Ren'an nodded, and when he turned to face the furnace in the center, the momentum of the whole person changed dramatically in an instant, his breathing was calm and even, and there was no fluctuation on his face.

It seems that this old guy really has some ability, just with this hand to calm down, Jiang Danwu has to admire Zheng Ren'an's realm.

Half an hour passed, but Zheng Ren'an didn't move for a long time, his eyes stayed on the furnace, and his brows were slightly locked, as if he was doing some kind of ideological struggle.

After another moment, Zheng Ren'an finally breathed a sigh of relief, his palms lit up, and the temperature of the entire refining room dropped suddenly, and in just an instant, a thin layer of frost formed between his eyebrows, even Jiang Danwu, who was under the protection of the star array, felt a piercing chill at this time, and at first glance, he couldn't help but shiver, and hurriedly used his star power to resist the cold outside his body.

"Xuanshuang Cold Iron!" Looking at the Xuanshuang Cold Iron in Zheng Ren'an's hand, which glowed with infinite white light and exuded countless chills, Jiang Danwu couldn't help but take a breath of cold air.

Xuanshuang Cold Iron, this is the name of that material in the cultivation realm in the previous life, what is it called in the Lu realm in this world, Jiang Danwu does not know, but he knows that even in the previous life, Xuanshuang cold iron is also a good thing for refining weapons, if there is such a large volume in front of him, I am afraid that even the strong people in the tribulation period will be tempted.

No wonder this old man was a little hesitant just now, it turned out that he was thinking about what to use to refine the star sword for himself, Jiang Danwu smiled lightly at the corner of his mouth, he believed that the star sword created by Xuanshuang Cold Iron had an absolutely extraordinary effect.

At this time, Zheng Ren'an didn't care about Jiang Danwu's feelings at all, the cold iron started, and when he threw it, he immediately fell into the furnace, and then the purple light flashed all over his body, and he made sword fingers with both hands, and formed several magic tricks and pointed at the furnace at the same time, and in an instant, a raging fire wrapped the cold iron in the ding.

Although there was also a layer of star array protection across the furnace, Jiang Danwu still felt that the chill disappeared instantly, and was replaced by a heat wave that was hotter than nothing.

Looking at the flames in the furnace, Jiang Danwu understood what Zheng Ren'an would set up this star array before, it turned out that the sparks used in refining were not as gentle as alchemy, and the flames in the furnace were full of violent aura at this time, coupled with the strength of Zheng Ren'an's Star Emperor Realm, it was indeed much stronger than he imagined.

The sparks wrapped the Xuanshuang cold iron, scorching evenly all around, but Jiang Danwu's gaze continued to sweep over the magic tricks in Zheng Ren'an's hands and the sparks in the furnace.

This step seems simple and repetitive, but Jiang Danwu understands that just like refining medicinal materials during alchemy, it can almost be said to be directly related to the success or failure of the most relatable.

This lasted for ten days, except for the fact that the Xuanshuang Cold Iron had become red all over its body, there was no sign of it being refined at all, but Jiang Danwu keenly felt that the Xuanshuang Cold Iron at this time as a whole was like a volcano that had not yet erupted......

Sure enough, all of a sudden, the magic trick in Zheng Ren'an's hand began to change, his right hand condensed star power, and he continued to depict in the air, and suddenly scratches of different shades appeared on the extremely tough outside of the Xuanshuang Cold Iron, and with the tip of Zheng Ren'an's nose let out a soft snort, the countless criss-crossing lines on the Xuanshuang Cold Iron seemed to be connected by an inexplicable force in an instant.

A dazzling strong light flashed, and the entire furnace was also flashed red, and then the entire piece of Xuanfrost cold iron began to slowly dissolve, Zheng Ren'an did not relax at this time, and then his wrist shook again and again, and in the blink of an eye, more than a dozen rays of light of different lusters flew from the storage bracelet into the furnace.

As soon as the various materials came into contact with the solution of the Xuanshuang Cold Iron, they were immediately dissolved by its scorching high temperature, and the various colors were mixed together, emitting a strange light, and at the same time, Zheng Ren'an's spark not only did not weaken at all, but strengthened again.

At this time, Jiang Danwu, who was constantly running the star power to resist the heat wave coming through the star array, also had a feeling of sweating on his back.

Seeing the strength of Zheng Ren'an's Xinghuo, Jiang Danwu didn't even have to doubt that if he fought with the other party, he only needed to release the Xinghuo, and he couldn't resist it at all, such a result made Jiang Danwu, who had always been smooth sailing in cultivation, and even with the experience of his previous life, Jiang Danwu, who often defeated his opponents superbly, finally no longer had contempt for the powerhouses of this world.

Because, even if he cultivated to the Yuan Infant Stage at the beginning, his natal true fire may not be stronger than the current Zheng Ren'an.

At this time, with the continuous burning of the spark, the color of the solution is gradually dimming, Jiang Danwu Zhilu said that this is quenching, to remove the impurities in various materials, the more thorough this process is, the higher the grade of the star weapon will be.

Jiang Danwu still didn't let go of any detail, and Zheng Ren'an seemed to have the intention of letting Jiang Danwu understand, so the magic trick in his hand didn't change very quickly.

When encountering some tricks that he couldn't understand for a while, Jiang Danwu also forcibly memorized them and studied them slowly in the future.

In the blink of an eye, another twenty days passed, and the mass of solution in the furnace no longer had any luster changes, turning into a silvery white color.

Immediately, the magic in Zheng Ren'an's hand changed again, the time of the tea, those solutions had condensed into the shape of a long sword in the continuous rotation, Zheng Ren'an's magic in his hand at this time suddenly accelerated, both hands waved at the same time, a star array just appeared on the sword embryo, and then it was covered by another star array, and under such a superposition, not only did not have the slightest sense of disobedience, but made the star array and the star array echo each other, and there was a feeling of endless life.

Even if Jiang Danwu had already known Zheng Ren'an's design of the star array on the star sword, seeing this scene at this time, he felt that the mystery between the star arrays was also a feeling of relaxation.

Even, as time went by, Jiang Danwu seemed to fall into some kind of contemplation, as if he felt a trace of the key, but he couldn't catch it, this feeling was so uncomfortable that people wanted to go crazy, and at the same time, Jiang Danwu was upset, and almost wanted to scream, but he knew that Zheng Ren'an at this time couldn't stand the slightest disturbance, so he had to constantly suppress the irritability in his heart.

It wasn't until Zheng Ren'an completed the depiction of the last star array that Jiang Danwu suddenly felt a burst of clarity in front of him, and the essence of light flashed in his eyes, at this moment, he finally understood a lot of the content that he had written down in the library pavilion before, and for a while, the countless star arrays superimposed on the sword embryo seemed to be layered in front of Jiang Danwu's eyes at this time, and even the wonders of many places, at this time he really tasted it.

Just when Jiang Danwu was immersed in his own formation world, the purple light on Zheng Ren'an's body skyrocketed again, but at this time, the temperature of the star fire in the furnace did not increase again, but plummeted in an instant, and a feminine power emanated, and the star fire seemed to turn into cold ice, making the speed of the star sword suspended in the furnace condense.

Suddenly, a strong pressure was pressed down, and even Jiang Danwu in the star array was pressed down for a while.

And Zheng Ren'an, who also felt the strong pressure, finally flashed a trace of joy full of excitement on his face.

Not long ago, Jiang Danwu, who had only felt the power of the Heavenly Tribulation, naturally would no longer feel unfamiliar with such a Heavenly Tribulation, and immediately the whole person became excited, although the Star Sword was not refined by him, but the Star Sword belonged to him.

Similarly, when the clouds appeared above the Hidden Sword Peak, the elders and disciples of the entire Tianluo Sect also boiled.

What happened to the Tianluo Sect recently, first the Dan Tribulation of Xingdan Peak, and now it is the turn of the Weapon Tribulation of Xingjian Peak, and all the elders are also rushing towards Xingjian Peak at almost the same time.

This is already a habit, in addition to watching the excitement, of course, there is also a reason that everyone is worried that if there is any accident at the critical juncture of the Heavenly Tribulation, it is easy to help, after all, whether it is alchemy or refining, the person who can attract the Heavenly Tribulation is an extremely valuable talent, not to mention such a person in the Tianluo Sect, even in the Star Boundary, it will also become the object of the great power to recruit.

"Where is Jiang Danwu?" As soon as Yu Wanfa landed on Star Sword Peak, he immediately asked Hong Feng, who was saluting. He naturally remembered that Jiang Danwu had said that he would ask Elder Zheng to help refine a star sword, thinking of what happened after Jiang Danwu entered the Tianluo Sect, when he sensed the Heavenly Tribulation, Yu Wanfa had a feeling in his heart that this matter was probably related to Jiang Danwu.