Brush!

Lin Mu's arm shook, and the black dragon sword let out a sword roar, and it appeared in his hand, due to the shock of the true qi, the golden veins on the black sword body were unusually bright and eye-catching.

"Good Sword"

As soon as the Black Dragon Sword came out, Fang Tong immediately praised it, although he had also seen Lin Mu use the Black Dragon Sword when he was in the Mercenary Chamber of Commerce before, but because of the tense scene, he didn't care much.

At this moment, when he looked closely, his eyes couldn't help but light up, he had never seen a mortal-level mid-grade spirit treasure, it could be sharp to this level, the black dragon sword in Lin Mu's hand was probably enough to be comparable to an ordinary mortal-level high-grade spirit treasure.

Then, with a wave of Lin Mu's palm, a large piece of alchemy materials poured out, and the ping pong fell to the ground, the black dragon sword was extremely sharp, turning into a ray of light, cutting the materials he needed, and an invisible true qi sprayed out, and those cut haode materials automatically floated in front of Lin Mu's body.

Instantly, soul power gushed out from within the body, filling every part of the room like a storm.

"What a strong soul power"

Fang Tong's clothes were lifted up by the power of the soul, feeling the invisible wind and waves, Fang Tong was shocked again, although he was not a treasure refiner, he knew the unique soul power of the treasure refiner, he had personally felt the soul power of the Fang family's mortal-level mid-grade treasure refiner, compared to Lin Mu's, the gap was really not a little bit.

At the same time, an invisible telekinesis rushed out of the Tianchong Cave, and also rushed out, and there was a fire python that turned into a golden flame, and the moment the fire python appeared, it was completely fused with the telekinesis, turning into a sea of fire, and those materials, as if they were completely ready, were smoothly thrown into the sea of fire one by one in order.

Lin Mu's movements were like flowing water, without the slightest sluggishness, and in just three breaths, he completed all the preludes.

"What a skillful method of treasure refining"

Fang Tong couldn't help but admire, although he was a layman, he could also see some doorways, compared to the Fang family's treasure refiners, Lin Mu was really much stronger.

In his eyes, Lin Mu's treasure refining methods were like a master-level treasure refiner who had been refining treasures for decades, and he didn't have the slightest sense of rustiness at all, which was simply a unique talent.

If Fang Tong knew that Lin Mu was refining treasures for the third time, I am afraid that he would directly open his mouth in surprise.

The Black Dragon Sword itself was refined by Lin Mu himself, so no one was more familiar with the structure inside than him, so in order to make the Black Dragon Sword advance, there was no need to smelt the Black Dragon Sword again, and directly smelt the materials needed and integrate them into the sword.

Black top rock, refined iron, red copper, and green spirit wood, these were the materials before refining the Black Dragon Sword, and now they were added by Lin Mu to three mortal-grade materials.

Under the fire cloud and golden flame, these materials were refined one by one, and their essence was completely raised.

Lin Mu's whole person entered a very quiet state, he seemed to be completely integrated into the process of refining treasures, and every time he refined treasures, he would have a deeper understanding of treasure refining.

This time, a total of seven materials were thrown into the sea of fire, completely smelted at one time, and the power of the soul was sensitive to a certain extent, and he was able to find the melting point of several materials at the same time, which saved Lin Mu a lot of time.

Refining treasures can make Lin Mu enter a very mysterious state, in this state, Lin Mu found that every part of his body has been mobilized, every muscle cell is beating, and among the five deified acupoints, the original static true qi will also roll, like a tide, rolling like a tide.

In the Tianchong Cave, the golden small tripod rotated unhurriedly, and the small tripod seemed to be a fundamental source, constantly supporting Lin Mu.

The whole body was mobilized, and the true qi was even more condensed, and the situation that Lin Mu had devoured the black-veined rhinoceros before and caused the instability of the realm caused by crossing two levels was also constantly stabilizing with this state.

The mobility of the body was completely mobilized with the refining of treasures, but Lin Mu's heart was unusually calm, when integrated into this state, it seemed that everything was empty, and his heart was clear, Lin Mu called this state of his own [Emptiness].

In the state of emptiness, Lin Mu's understanding and mastery of treasure refining was also becoming more and more proficient, and when he completely purified the seven materials in only half a quarter of an hour, Fang Tong, who had been watching from the sidelines, stumbled under his feet, and saliva flowed out.

"Nima, is this a human?"

The old man panicked, he had also heard a lot about the process of refining treasures by treasure refiners, the Fang family had treasure refiners, and he had seen it with his own eyes, it was difficult to refine, like Lin Mu, it was too scary.

Fang Tong remembered that the treasure refiner of the Fang family, with the Nine Recultivation of the Condensation Pulse Realm, refined a mortal-grade mid-grade spirit treasure, and it took four hours to purify it, and it took a full day to successfully refine a spirit treasure.

And Fang Tong's surprise had just begun, when Lin Mu completely integrated the materials into the Black Dragon Sword and successfully raised the Black Dragon Sword to the top grade of the mortal level, it only took an hour, which was half the time compared to refining the spirit treasure for himself before.

Although it is said that the Black Dragon Sword itself is a finished product, it is also too scary.

It's not human at all.

Buzzing~~

The moment the Black Dragon Sword was promoted to the top grade of the mortal rank, it buzzed violently, and the entire room was shaking with the powerful sword qi.

And this is not completely over, after the Black Dragon Sword was promoted to the top grade of the mortal level, it became even more miraculous and sharp.

At this time, Lin Mu took out a fist-sized piece of Taiyi Essence Gold, and the Black Dragon Sword turned into a black shadow and slashed out.

Taiyi Essence Gold is very strong, but after all, it is only a material, how to resist the sharpness of the Black Dragon Sword that has just been promoted to the top grade of the mortal level, there is almost no hindrance, and it is cut off by Lin Mu A piece the size of a projectile.

Whew'~

Looking at the Taiyi Essence Gold wrapped in the power of the soul, Lin Mu exhaled a breath, this is the most critical step, it depends on his own Fire Cloud Golden Flame, whether he can smelt the solid Taiyi Essence Gold, if it succeeds, this large amount of wealth can really play its value.

Fang Tong on the side, his eyes were bright, he didn't dare to breathe, his fists were clenched, he seemed to be even more nervous than Lin Mu, because he also knew how much the preciousness of Taiyi Essence Gold could bring to the spirit treasure.

Under the control of Lin Mu's mental power, the sea of fire that the fire cloud golden flame turned into instantly condensed, turning into a vivid fire python, completely enveloping the Taiyi Essence Gold.

Sneer~~

Lin Mu almost adjusted the flame to the highest temperature, and the surface of Taiyi Essence made a sneering sound, but after more than ten minutes, Taiyi Essence Gold was burned red, but there was still no sign of being smelted.

Seeing this situation, Lin Mu and Fang Tong's faces couldn't help but show a trace of disappointment.

"That Fire Cloud Golden Flame Python has a trace of the bloodline of the Nine Heavens Holy Fire Beast in its body, and among the flames, it must also have the characteristics of the Nine Heavens Holy Fire, stupidly said, my Fire Cloud Golden Flame is enough to ensure that I refine the Yuan-level Spirit Treasure, this Taiyi Essence Gold is just the lowest level, the Fire Cloud Golden Flame, it will definitely be able to be refined"

Lin Mu frowned, did not give up, and continued to control the flames to penetrate into the Taiyi Essence Gold.