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Two days later, in the Black Evil Mountains, a blue-robed figure ran through the mountains, as he walked, he observed the surrounding terrain from time to time, and occasionally listened to the sounds around him with his ears, he walked carefully, and seemed to be looking for something.

This figure is Ning Fan, from the east of Kunlun to the south of Kunlun, there are many places to pass in the middle, and some places still need to carry some special tools to pass, so it was already this time when Ning Fan arrived.

This time, there was no experienced Meng Quanlong by his side, and he could only rely on himself, so he walked very carefully, while guarding against possible dangers, while observing the terrain, trying to find the Mithril Valley where Kunlun and Tiancang fought last time.

Ning Fan was naturally no stranger to that valley, but Ning Fan didn't know much about its location. The last time he thought he could get there was because he was teleported to the vicinity of the valley by Huayangzi's inheritance space, and then he met Jiang Hu again, so he got there; And when he left, he was taken away by Liu Wanjian Edgeworth, and the speed was so fast that he didn't remember many characteristics of that side at all.

Now that a person has arrived here, he has not found anything familiar, and Ning Fan can only look for it little by little.

Fortunately, he was able to walk with a sword now, and his speed was still very fast, and under his care, although he encountered a few demon beasts along the way, he avoided them in advance.

Half a day later, Ning Ji finally found a place, although the valley had long since ceased to exist due to that volcanic eruption, Ning Fan still recognized this place at once.

As soon as he found a place, Ning Fan became excited, Bai Qianjiang's ring could be obtained immediately, and Zhang Qianyin's ring could now be opened.

For him, who is now short of money and materials, the role of these two rings is self-evident, of course, it is good to open them as soon as possible.

Soon, Ning Fan found the crater, at this time, although the volcano has stopped erupting, the temperature on the crater is very high, and the surface of the crater has been blocked by a layer of volcanic ash.

However, this was a trivial matter for Ning Fan, I saw that his sword reached the crater, and then he summoned his own strange fire and smashed it towards the crater.

This crater was just plugged not long ago, and the blockage was not too deep, coupled with the high temperature of the fire, it was only two blows, and the crater was smashed open. A wave of heat erupted.

As soon as the heat wave passed, Ning Fan Edgeworth flew towards the crater.

At this time, although the temperature on the crater was still very high, it was not something that ordinary people could bear, but Ning Fan's body had undergone a certain degree of transformation as early as the last time he arrived, and it was fine for ordinary flames to burn on his body, not to mention that it was just a little bit of high temperature?

Soon, Ning Fan was above the magma.

This place has not changed much, Ning Fan quickly found the black rock where he had buried the ring before, and with almost no effort, Ning Fan took the ring out.

Sure enough, it's a baby, it's been roasted for so long in this place at such a high temperature, and this ring hasn't changed at all, and it's not damaged at all.

Ning Fan looked at it in his hand, with a smile on his face, he could finally open it, this was something he had obtained when he was still in the Void Dan period, and he felt a sense of accomplishment when he thought about it.

As soon as his divine sense moved, Ning Fan leaned into the ring, but only encountered a slight obstacle, and the ring was opened by him.

This Bai Qianjiang is really extraordinary, the space in this ring is more than ten times larger than the one that Ning Fan has now, and there are hundreds of square meters of space, just like a big room.

The things inside were neatly placed, only a pile of shiny silver stones were randomly piled in the middle of the ring, which Bai Qianjiang had just gotten at that time, and it might not have been sorted out yet, so it would be so messy.

Glancing at those Mithril Mines, Ning Fan's eyes lit up, although he still didn't know how to use this Mithril, but what could cause the two major sects to fight and get it must be very extraordinary, and now there are so many Mithril Mines here, it must be a lot of wealth.

If it were something else, Ning Fan might use it to exchange it for a large sum of spirit stones or something, this Mithril Mine, he didn't have this kind of plan, this is a refining material, a refining material that can be encountered but not sought!

Finally, Ning Fan suppressed his excitement about getting the Mithril Mine, and then looked at the other things in the ring.

Ning Fan looked from left to right, and the first thing he saw was several swords, neatly placed in the far left corner of the ring. Ning Fan counted them, there were five in total, ranging from the mortal weapons used by martial artists to the spiritual weapons used by cultivators.

From the point of view of Ning Fan, who already has a certain amount of experience in sword casting, these swords are obviously not ordinary.

The sword on the far left was actually a bronze sword, and it was also a cast sword, Ning Fan could see it at a glance, and he didn't care about looking at the others, Ning Fan directly took the sword out of the ring and took it in his hand to observe.

Compared with the swords cast by Ning Fan, the quality of this sword is much higher, the cyan sword body and the red sword spike, coupled with the faint fluorescence emitted by the entire sword, make this sword a mortal weapon, but it has a faint spirituality.

After looking at the outside of the sword, Ning Fan once again used his divine sense to observe the inside of the sword, and found that although the material of the sword was mainly copper, he didn't know what accessories were added to it, which made the whole sword look more uniform and seemed to be more dense. Such a structure is naturally better than the sword forged by Ning Fan.

In addition, although the inside of this sword does not form veins like the spirit sword, the grains inside it are dense and uniform, and the compatibility with true qi must be good, Ning Fan speculated that such a sword, as long as the true qi is enough, should be able to exude sword qi.

After observing for about half an hour, Ning Fan finally raised his head and felt that he had gained a lot. He felt that this should be a direction for him to forge swords in the future, and strive to make the internal material of the sword uniform and the grain dense.

In addition to these, Ning Fan felt that his understanding of the sword had also deepened, a good sword should not only have a sharp blade, but also the sword body should be dense and even, and the structure should be reasonable, so that the whole sword can play its role more as a whole.

In other words, the sword must not only have a local sharpness, but also have an overall integrity.

After reading the first sword, Ning Fan looked at the second sword again.

The second sword is an iron sword, to be precise, a steel sword, the body of this sword is blue and gray, the sword light is faintly flashing, the lines are smooth, and the blade is shining with cold light.

This is also a mortal weapon, but compared to the previous bronze sword, this sword is only in appearance, and the quality is higher than the previous sword. If you slash this sword against the sword just now, although you may not be able to cut off the bronze sword, you will definitely be able to leave a hole in it.

Suddenly, Ning Fan found a very strange place, on this dense sword body, it was not a color, but there were irregular stripes that were not too obvious, what is this?

Looking up and down, Ning Fan found that the entire sword body had this kind of stripes, and some of these stripes were actually connected, and they were very long.

After observing for a long time, Ning Fan kept frowning and didn't figure it out. Is this pattern a decoration, or is it an unintentional impression when the sword was made?

It is unlikely that such irregular stripes are deliberately decorative, and no one would use such irregular stripes for decoration, right? That's what was formed when the sword was made?

Suddenly, a spiritual light flashed through Ning Fan's mind, and a possibility came to mind, this sword could not be made with the method of refining a hundred times, right?

As soon as this idea was generated, it was immediately affirmed by Ning Fan. He glanced up and down at the entire sword body again, intently observing the stripes on the sword body, and soon came to a conclusion that this sword actually had dozens of layers of stripes, that is to say, this sword, even if it has not been refined for a hundred years, has dozens of refinements.

No wonder the quality is so high, it turns out to be this kind of process.

If you can learn a hundred exercises yourself, can you also make this kind of sword? Ning Fan's heart was full of anticipation.

Then, Ning Fan mobilized his divine sense again and observed the sword from the inside. At first, Ning Fan didn't find anything, the difference between this sword and the previous one was not too big, at most the internal grains were smaller and more uniform, but soon, Ning Fan discovered the difference.