Lin Feng bought more than a dozen copies of finished refined iron and more than a dozen unrefined black iron ore in the shop that sold gas refining materials, because these were low-grade gas refining materials, they did not cost Lin Feng a lot of spirit stones.

Then he returned to the shop where he rented the cultivation room, and after adding a few spirit stones, he replaced his quiet room with the earth fire room, Lin Feng entered the earth fire room he selected, changed the outdoor room sign to the words "don't disturb", and then sat in front of the earth fire, the temperature of the earth fire room was much higher than the outside, and now Lin Feng sat in front of the earth fire specially drawn out, and felt that the heat on his body was unbearable.

Then he took out an ice spirit talisman and pasted it on his body, and suddenly felt a cool breath that instantly enveloped his whole body, and soon isolated the heat of the earth fire room from his body, and with the disappearance of the heat, Lin Feng regained his comfortable state, and then took out the black iron ore and practiced according to the treatment method on the jade slip.

The ice spirit talisman is a low-level talisman, which can well isolate the heat from invading one's body, which is also a kind of talisman commonly used by cultivators in refining, if there is no protective measure when refining the weapon, it will soon be invaded by fire poison, which will cause great hidden dangers for the monk's future cultivation.

I saw Lin Feng dragging the black iron ore with spiritual power, and then placing it in the center of the earth fire, the black iron ore that was subjected to high temperatures slowly melted into a black liquid, Lin Feng knew that melting the ore was only the first step, and it was also the easiest step, and the next step was the most difficult step, that is, purification.

Lin Feng probed out his divine sense, slowly invaded the black iron ore that melted into a liquid, and then according to the different properties of useful minerals and gangues, he used extremely fine spiritual silk to separate the useful minerals and gangue stones to the sides little by little.

Half an hour later, even Lin Feng, who had the Ice Spirit Talisman Protective Body, couldn't help but be full of man, but this was obviously not hot, but because Lin Feng was refining ore for the first time, the consumption of his mind was extremely great

Looking at the purified black iron ore that had solidified on the left hand, Lin Feng took out another piece of qualified refined iron that he had purchased, Lin Feng found that although the colors of both had become dark and shiny, Lin Feng looked carefully, and he could still see some gray dots on the dark and shiny surface, which was obviously unqualified for purification, and did not reach the quality of qualified refined iron, and could not be used for refining gas at all, even if it was forcibly used to refine magic weapons, it was extremely fragile, and I was afraid that it would be cut off at once.

However, Lin Feng was not discouraged, because after all, this was the first time to purify, whether it was from the perspective of technique or experience, Lin Feng still had a lot of shortcomings, but in the field of refining, even if he was a genius, he had to practice hard to achieve something.

Lin Feng was never conceited enough to say that he was a genius in that aspect, so hard practice was the most important thing, adjusting his sitting posture, Lin Feng took out a piece of black iron ore again, and purified it again according to the original steps.

A few days later, Lin Feng finally purified the black iron ore to a qualified level, and the purification time was shortened to half of the previous time, looking at the refined iron in his hand that was half smaller than the original volume, Lin Feng laughed, it seems that the efforts of the past few days have finally not been in vain, and after refining dozens of pieces, it has finally succeeded.

Next, Lin Feng took out the refined iron he bought, and then according to the method recorded on the jade slip, he first put the refined iron in the center of the earth fire and let it melt, and then through his own thoughts, little by little, the liquid mass of the melted refined iron was pulled into the shape he wanted, and the first plan in Lin Feng's heart was naturally to start from refining the lowest-grade magic weapon, so as Lin Feng's mind the melted refined iron began to slowly and gradually elongate, and as it was elongated to a certain extent, Lin Feng stopped changing its length, and then Lin Feng was shaping the sword body, with the influence of Lin Feng's thoughts, the bottom of the elongated refined iron began to become slenderAfter a while, a formed sword tip was formed, and with the formation of the sword tip, Lin Feng saw that his attention was on the other parts of the sword body, and then he saw that both sides of the sword body gradually became thinner, and then the sword blade was formed, and then the blood groove in the middle of the sword body, so far the sword body of the flying sword was completely completed by Lin Feng.

Immediately after Lin Feng's right hand threw out a ball of fine iron, obviously after having the sword body, Lin Feng naturally wanted to build a sword hilt, with the activity of Lin Feng's thoughts, soon, a formed sword hilt appeared in front of Lin Feng's eyes, followed by the docking of the sword body and the sword hilt, I saw Lin Feng carefully move the formed sword body and sword hilt towards the middle, as the sword body and the sword hilt finally became one, Lin Feng felt that he had played a commonly used method for refining qi "Condensation Technique" , I saw a blue light flashing on the flying sword in the middle of the earth and fire, and the form of the flying sword instantly solidified, and then it was taken out by Lin Feng.

After it cooled down completely, Lin Feng carefully looked at the flying sword tire he had built for the first time, and after looking at it for a while, it was still due to lack of experience and many flaws, Lin Feng immediately threw it aside, and took out the fine iron again to practice.

With Lin Feng's current net worth, he naturally doesn't care about the consumption of such low-grade refining materials, so, a month and a half later, Lin Feng finally refined his first lower-grade magic weapon, looking at the cold and shining lower-grade flying sword in his hand, Lin Feng smiled happily, the finished low-grade flying sword in his hand and Lin Feng's first lower-grade flying sword are the same style, even the materials used are the same, it can be regarded as a kind of remembrance.

Then he threw it into the storage bag, Lin Feng re-entered the state of refining, although he had successfully refined a low-grade flying sword, but Lin Feng knew that he was still not skilled enough, and the success rate was definitely less than the probability of failure.

With Lin Feng's practice, the success rate is getting higher and higher, and the various refining techniques are becoming more and more skilled, finally, Lin Feng ended his practice of refining weapons, and took out a booklet, the back of this booklet records the refining method of a high-grade spiritual weapon "Golden Red Sword", which is naturally obtained from the storage bag of "Yun Songzi".

At the beginning of obtaining the method of refining high-grade spiritual weapons, Lin Feng's cultivation was not high at that time, and he was far from being able to use spiritual weapons, so he was naturally put aside by Lin Feng.

At that time, it was different now, the current Lin Feng was already a monk in the foundation building period, and he already had two spiritual weapons.

And now that Lin Feng is already a refiner, he can naturally start refining this long-obtained high-grade spiritual weapon "Golden Red Sword", a high-grade spiritual weapon, Lin Feng is very eager in his heart, after all, the advantage of a magic weapon can make up for the lack of cultivation, if there is a high-grade spiritual weapon, Lin Feng will not have to be afraid of the witch in the stone cave that day.