Half an hour later, they appeared in front of a stone gate, more than twenty miles away from the entrance of the cave.

I saw that the colored light on the stone door was circulating, as if there was some prohibition on it, and the young man made a transmission note, and after a while, the door slowly opened.

Suddenly I felt a rush of heat, and I saw that there was a tall and wide hall inside, and there were more than a dozen stone caves around the hall, and there were thick stone doors at the entrances of the caves, and each stone door seemed to have a forbidden existence.

There was a gray-shirted young man in the hall. Qin Fengming used the spiritual eye technique to check, that person had the fifth-layer realm of the Qi Gathering Period. At this time, a pile of refining materials was being sorted out.

The young man who had brought him here asked him to wait here for a while, and he began to sort out the refining materials on the ground.

When I came over for a meal, I saw the door of the largest stone cave suddenly open, and Uncle Fei walked out of it.

Seeing Qin Fengming, he said with a serious expression:

"Senior nephew Qin, whether you like refining weapons or not, since you are here, you must learn the way of refining weapons with peace of mind, in the first ten days, I will find some materials to teach you the art of refining, if you can't meet my requirements after a month, you can't stay in the refining hall." ”

"If you meet my requirements, I will assign you some tasks to refine the materials every month, and as long as you complete them, you can cultivate on your own. Ten low-level spirit stones will be given to you every month. This month, I can give you twenty spirit stones to practice refining. As he spoke, he handed Qin Fengming twenty spirit stones.

"The disciple must study hard and will not disappoint Uncle Fei," Qin Fengming took the spirit stone and said respectfully.

"Okay, come with me. As he spoke, he walked to a stone cave next to him, and with a wave of his hand, the stone door opened silently.

Follow Uncle Fei into the stone cave, and the stone door closed silently. Suddenly, a flash of light flashed, and a layer of prohibition flashed out on it.

The temperature in the cave was significantly higher than that of the hall, but its spiritual power flowed in the body, and it suddenly felt that the temperature was much lower.

Eyes swept in the stone cave, found that the cave has four or five zhang long and wide, about five or six zhang high, on the cave ground, scattered six crouching toads, each more than three feet high, all with their mouths open, head high, posture as polite, mouth spit a trace of white gas.

I saw Uncle Fei walk up to one of the toads, take out three low-level spirit stones, put them in the three grooves on the toad's body, and hit a magic duel, only to see that a hot flame spit out from the toad's mouth.

"The earth fire here is not much more than the Dan fire of the predecessors of the Cheng Dan period, I opened the patriarch to use the great magic power to lead the fire of the center of the earth here, and set up dozens of fire initiating beasts to put on it, as long as the spirit stone is used to attract the magic circle, the fire initiating beast can spew flames from its mouth, and the monks in the qi gathering period and the foundation building period can use this alchemy and refining tool. This place is comparable to the earth fire of Senior Brother Lu's Alchemy Hall. ”

As he spoke, he instructed Qin Fengming on how to control and use the Earth Fire.

"Senior nephew Qin, you have to watch carefully and pay attention carefully. In the future, if I follow my practice, I will be able to refine the material. ”

After finishing speaking, he took out a refining furnace and placed it on top of the earth fire, put a piece of refining material into the furnace, skillfully controlled the size of the flame, and after a meal, the material turned into a liquid, and then, Uncle Fei played another spell, only to see that the color of the flame turned white.

A layer of gray-white substance slowly appeared on the surface of the liquid material, which lasted for a meal, and Uncle Fei used a long pincer-like utensil to take out the gray-white substance. Use a utensil to put away the remaining ingredients. Another spell was struck at the fire-initiating beast, and the flames of the fire-initiating beast suddenly disappeared.

Qin Fengming looked at it seriously, Uncle Fei seemed effortless, but Qin Fengming knew that Uncle Fei didn't know how many years of accumulation would make it so easy.

After Uncle Fei finished the demonstration, he passed on the various fire control techniques to Qin Fengming, and after throwing him a bunch of refining materials, he turned around and walked out of the cave.

Qin Fengming sat on the ground, recalling the law decision passed on by Uncle Fei with his heart, and played a law decision against the fire beast, "suddenly", the fire beast spit out flames, and hit another law decision, the flame slowly transformed, but the conversion was much slower than that of Uncle Fei.

He knew that his spiritual power was not as profound as Uncle Fei's, and he needed to slowly experience the heat of this transformation.

Put the refining furnace on the fire initiating beast, put in a piece of refining material, and according to Uncle Fei's procedure, exercise and purify this piece of material.

But as expected, zuihou, this piece of material was refined into a black thing and scrapped.

For the next month, he went through the process every day, except for eating and sleeping.

For the first ten days, Uncle Fei would come over every day to give guidance. Ten days have passed, and I haven't seen Uncle Fei yet.

Every four or five days, Qin Fengming would replace the spirit stone. Only then did he know why Uncle Fei gave him twenty spirit stones. Consuming spirit stones so quickly is really beyond the reach of ordinary disciples.

In the first half of the month, he would fail to refine and purify eight or nine times out of ten, but after twenty days, the failure rate dropped to five or six out of ten, and when it came to nearly a month, the success rate reached seven or eight out of ten. Despite this, he was still very worried in his heart, and he didn't know if he could pass Uncle Fei's test.

He didn't know that his success rate of such purification was already outstanding even in the entire refining world.

Thirty days later, when Uncle Fei came to inspect the practice of this month, he was very surprised by his practice techniques and success rate.

According to his assumption, Qin Fengming can have a success rate of two or three percent, even if he is qualified. What refiner doesn't take years or decades to be foolproof. Qin Fengming was able to master the cultivation technique to such a level in just one month, how could he not be surprised.