"What? Two months required thirty pieces of 'Ten Refining' refined iron? I remember that the last mission only required twenty pieces of 'Ten Refining' refined iron!" Senior Brother Hou wailed, with a desperate expression on his face.

"That's right, the refined iron of the 'Ten Refining' is all good materials for refining top-grade magic weapons, how can the puppet hall raise the requirements so much all of a sudden. Lin Quan and the other four eleventh layer cultivators also had ugly faces.

As long as anyone with a little refining experience knows that refining thirty pieces of 'Ten Refining' refined iron in sixty days is definitely an unimaginable problem. If you want to successfully complete the task, on average, you have to refine a piece of "Ten Refining" refined iron every two days, and this kind of task is indeed a very torturous task for a disciple of the eleventh level of cultivation.

"Ladies and gentlemen, this task is indeed a bit difficult, even if we wait, it will not be easy to complete. Without further ado, Wu took his leave first. Senior Brother Wu arched his hand at everyone with a solemn expression, and then picked up his storage bag and strode away.

"Hmph, you poor fellows are really out of luck. Haha......"

As soon as Senior Brother Wu left, the other two Twelfth Layer Cultivation Senior Brothers first laughed at Lin Quan and the other six with disdain, and then glanced at each other and left one after another. Even if they don't work hard, I'm afraid they won't be able to complete the task.

This time, there were only three twelfth-level senior brothers among the nine attendant disciples, and they had already secretly regarded the other two as their biggest opponents from the moment they entered the puppet hall. After all, only two people can get that 800 contribution points, and no one wants to be left behind.

After the three senior brothers all left, Lin Quan no longer paid attention to those who had sad faces, he picked up his storage bag and walked quickly to the door of the 'No. 56' Earth Fire Room, and easily used the forbidden disc to open the door of this Earth Fire Room that would belong to him alone for the next two years.

After entering the earthfire room, Lin Quan closed the only door for the first time. Then he took out a jade bead magic weapon and checked it around the gate several times, and then he picked up some beads and walked around the earth fire room twice, and finally when he confirmed that there was indeed nothing wrong in this earth fire room, Lin Quan finally breathed a sigh of relief.

Based on his understanding of the Dao Technique, he was ninety percent sure that no one had arranged anything hidden in this earth-fire room. After all, this is an earth-fire room full of berserk fire-based spiritual power, and generally speaking, there is nothing that can be placed here and can hide from his detection magic weapon.

The hanging heart finally let go, Lin Quan walked quickly to the rest place in a corner, he first replaced the original ordinary goods with the "Pure Heart and Soul Fixing Futon" taken out of the Tai Chi space, and only after sitting down in all directions did he unhurriedly open the storage bag that Master Li had distributed to him.

There were four items in this ordinary white storage bag: forty pieces of black iron ore, a small jade bottle containing twenty pills of the Hidden Gu Dan, an ordinary earth firearm ding, and finally a small jade slip. The first three things were all task items that were clear at a glance, and as for the last jade slip, Lin Quan only understood that the content inside mainly detailed the requirements of the task and a puppet hall's unique experience and tips for refining iron.

After turning over and looking at these items several times, Lin Quan was both happy and worried in his heart.

I was glad that I had learned a very useful refining technique the day after I came to this puppet hall. Although this piece of jade only recorded the refining experience of refined iron, it was still quite useful to Lin Quan under the bypass.

The worry was that these forty pieces of black iron ore were all the size of two adult heads, and it was definitely a big challenge for Lin Quan, who had not been in contact with alchemy for a long time, to successfully refine thirty qualified pieces of 'Ten Refining' refined iron in two months.

After secretly comparing his previous best refining speed, Lin Quan already had the consciousness of struggling in this earth fire room for two months in a row. Anyway, this Uncle Li has each given out twenty pills of the Hidden Valley Pill, and based on the calculation that each Pill can keep three days without hunger, this is exactly the amount of two months.

"This Uncle Li is really calculating, and this design is clearly to let us spend two months in this fire without eating or drinking. Alas, if it were only for two months, it would have passed by gritting your teeth. ”

But no matter how hard it is, it's useless, since you have accepted this task, you must do your best to complete it. Lin Quan didn't believe that this master would deliberately assign some tasks that could not be completed at all to make things difficult for his juniors. Besides, even for the sake of this rich earth fire resource, Lin Quan is ready to do his best to survive. With the right to use the Earth Fire for free for two whole years, Lin Quan believed that his alchemy level would definitely improve by leaps and bounds.

After everything was ready, Lin Quan no longer hesitated to start work.

In the middle of the earth and fire, there are a total of four special unicorn heads, the main unicorn head is in the center, and the three auxiliary unicorn heads are placed in the way of "three talent arrays" around the main unicorn head.

For the sake of prudence, at the beginning, Lin Quan only drew out the earth fire of the main qilin head. With the casting of the magic trick in his hand, in an instant, I saw a raging tongue of fire erupt violently from the mouth of the main qilin. Looking at this purple-red earth fire whose power far surpassed that of the true fire of the condensing qi cultivator, Lin Quan's heart was also agitated, what else could not be done with such a strong flame.

After a deep groan, Lin Quan threw a piece of black iron ore at the pillar of fire. He made subtle adjustments to the pillar of fire ejected from the head of the main qilin in the most intuitive way, and after repeating this several times, he nodded in satisfaction. This first step is complete.

The Earth Fire Ding assigned by the Puppet Hall slowly flew directly above the pillar of fire under the control of the Spirit Technique, and immediately after, a brand new piece of black iron ore flew into the Ding in the air. Next, Lin Quan concentrated all his spiritual consciousness on the ore in the ding, using the technique of 'one heart and two purposes', while controlling the earth fire tripod and heating the ore evenly, while silently recalling the various techniques of refining black iron in his mind. After all, this was the first time he had used earth fire, and he was refining the most cumbersome black iron ore. Although the puppet hall gave ten more spare mines, he did not dare to be negligent in the slightest.

More than half an hour later, under the calcination of the high temperature and fire, the surface of this black raw ore has all turned red, and there are bursts of smoke floating from time to time. After an hour and a half, the surface of the ore has largely softened. And from time to time, some cloudy gray-black liquid dripped from it.

Seeing this, the corners of Lin Quan's mouth couldn't help but curl up. According to the refining experience, whether it is the green smoke at the beginning or the turbid black liquor just now, it means that the impurities in the raw ore are being refined little by little by the high temperature. In this way, the first step of refining is almost complete. Next, you only need to use another water mill for less than an hour to slowly wait for the whole ore to completely soften and finally melt to end the "first refining".

This process lasted smoothly for more than half an hour. Just as Lin Quan was secretly thinking about how long it would take to completely dispose of this piece of black iron raw ore, a sharp pain suddenly came from his head, and the spiritual power in his whole body instantly showed signs of losing control. Caught off guard, Lin Quan couldn't help but snort, stumbling a few steps and almost falling to the ground. Under this influence, the Earth Fire Ding in mid-air and the black iron raw ore inside the Ding all fell to the ground uncontrollably.

Finally stabilized his figure, Lin Quan, whose face was pale, quickly sat down on the spot. He quickly took out three bottles of pills, took a few pills each, and immediately meditated and breathed. It wasn't until more than half an hour later that his face regained its blood color, and with the help of the elixir, he finally regained some spiritual sense and barely controlled the almost uncontrollable spiritual power in his body.

"It's so dangerous! This dual-purpose technique is very useful, but sometimes it is not good to be too involved. I really didn't expect that I could concentrate so much that I didn't even notice that my spiritual sense was exhausted, is this considered self-inflicted?" Lin Quan shook his head with a wry smile.

At first, he found that the spiritual power in his body was out of control, and he thought that he was being plotted by something, but after thinking about it, he reacted. It turned out that the loss of spiritual power this time was completely caused by his own carelessness. The reason is that he forgot the time when he used the 'dual-purpose' technique to recall the refining experience, so that his spiritual sense was completely exhausted, so he suddenly felt a severe headache, and the spiritual power in his body was almost out of control.

"Well, next time, you must pay attention to the time of each time as much as possible to control the time to about an hour. It's a terrible feeling to be depleted. After figuring out what happened, Lin Quan secretly warned himself.