The sun in the sky is releasing energy.

And in a mysterious underground realm.

But it's full of magma.

But at this time, on top of a piece of magma, there is a man and a pig.

In front of them lay a refining furnace.

At this time, after three months, Fan Xiaodong was almost the same, and all the materials were refined.

And now one of the materials being refined is called Ghost Soul Cold Crystal.

And this is also the last one, but this ghost cold crystal is also the most difficult material to melt.

Under the observation of Fan Xiaodong's divine sense, several black liquids in the refining furnace were churning inside, and some bubbles were rising towards the sky from time to time.

Not only that, but these bubbles are black, black bubbles, who doesn't feel weird when they see them? In addition, there is also a hint of chill in this bubble.

Under the large amount of fire energy, there was also a cold aura emitting out, I have to say that this ghost cold crystal was an extremely alternative material for ten hours, and it passed quickly like this, and at this time, Fan Xiaodong had been waiting for an hour without bubbles being generated.

These bubbles contain a large number of impurities, and now that the bubbles are gone, it means that these materials are already quite pure, but Fan Xiaodong knows.

This is the highest level that can be refined in terms of his skills, this ghost cold crystal is the most important thing, how can Fan Xiaodong end it like this?

Therefore, he set his sights on the Fire Shadow Pig, but Fan Xiaodong remembered that when the Fire Shadow Pig was refining the bone wings, the bone wings could be completely refined.

Sure enough, at this time, I saw Fan Xiaodong's gaze.

The big mouth of the fire pig shot out a ball of flames.

In the space of ten minutes, some bubbles appeared in the liquid material.

After three bubbles appeared in a row, the Fire Pig stopped.

Fan Xiaodong knew that with the current strength of the Fire Shadow Pig, it could only be like this.

However, now Fan Xiaodong is still quite satisfied, and now the purification degree of this material is very suitable for Fan Xiaodong.

Fan Xiaodong wanted to refine a spirit treasure magic sword this time, not that Fan Xiaodong didn't want to refine immortal weapons, but with Fan Xiaodong's current level, I am afraid that he can only refine spirit treasures, if he refines the immortal treasure magic sword, even if he kills Fan Xiaodong, he has no choice.

Of course, the first time he refined the magic weapon, it was to refine the spirit treasure, and if he let others know the Dao, he would definitely despise Fan Xiaodong deeply.

Next, what Fan Xiaodong has to do is to fuse materials, Fan Xiaodong's divine sense is extremely powerful, and it has the effect of refining the gods, presumably it will not be too difficult to fuse, the difficulty is that in the process of fusion, it also needs to be fused into the formation, and the formation depicted this time is not the usual one.

The formation that needs to be restrained this time is the formation that is specially required on the Five Elements Sword Control Technique.

This formation needs to be coordinated with essence blood, not only that, but it also needs to integrate the aura of fire attribute in the formation, in a word, the formation depicted is extremely mysterious and profound.

And now Fan Xiaodong is only tightly limited to the state of theory for the depicted formation, and has not practiced it yet?

"I wish I could refine it all at once!" Fan Xiaodong begged in his heart towards the Heavenly God and Buddha, and dancing in his hand, a drop of red and yellow blood essence blood had been forced out by Fan Xiaodong, seeing his red and yellow blood, Fan Xiaodong smiled bitterly, to be honest, Fan Xiaodong didn't know what was going on with his own essence and blood? It seemed to be getting more and more yellow inside, and with the improvement of cultivation, the yellow became more and more obvious.

"Whew......!"

With a long breath, Fan Xiaodong controlled the fire attribute energy in his body, and quickly surged towards the essence blood, at this time, he saw that the drop of essence blood was rapidly growing larger and swelling, and in a moment, Fan Xiaodong had already cast the formation, and then, after the essence blood was injected into the formation, Fan Xiaodong was heading towards the two materials that were about to be fused in the refining furnace.

"Buzz......!"

Suddenly, both materials were shocked, and there was a buzzing sound, remembering that drop of essence blood formation was pouring into the two materials, and suddenly the two materials were even deeper.

Seeing this scene, Fan Xiaodong let out a long breath, everything was difficult at the beginning, and now that the head has been opened, the rest is simple.

Immediately after that, Fan Xiaodong began to cast the second formation.

This kind of formation is not the same as the first time, Fan Xiaodong needs a total of 9981 formations in actual combat to achieve the state of unity, and these 81 formations are also different, although there are several that are somewhat similar, but they are not the same.

Then Fan Xiaodong ran a few more aura.

Once again, a drop of essence blood was forced out, and it quickly integrated into the formation.

This time, the formation was also transformed quite smoothly.

However, at this time, after using two drops of essence blood in a row, Fan Xiaodong's face was also a little pale.

"Whew......!"

The mutation happened, and when Fan Xiaodong entered the formation, the two materials were shocked, but this time he did not absorb the formation, but directly rebounded the formation, and at the same time, the two materials fluctuated rapidly, as if they were about to fly out.

Fan Xiaodong's face changed, and he hurriedly divided a part of his divine sense to suppress it, but it was okay not to suppress it, as soon as it was suppressed, the two materials were as if they had met an enemy, and they rebounded quickly.

Fan Xiaodong was a little at a loss, but at this time, the Fire Pig exerted his actions, only to see that the Fire Pig emitted a ball of aura, and sprayed out the two materials, under the forced suppression of the Fire Pig, which two materials were completely calmed down.

He glanced at the Fire Pig gratefully.

Fan Xiaodong began to think about the reason why it happened just now.

Soon Fan Xiaodong understood, because when he cast the magic circle just now, the time of fusion was not accurate.

After this situation, Fan Xiaodong became cautious, for fear of encountering any more danger.

But fortunately, this time Lady Luck stood by Fan Xiaodong's side, and the rest of the process was extremely smooth, and every material was safely fused by Fan Xiaodong.

And now what Fan Xiaodong has to do is also the last step, that is, the big fusion, fusing all the materials together, although this process is a bit complicated, but after the previous decomposition, the following step is much simpler, it can be said that there is no danger, as long as you refine it safely, but it is extremely time-consuming.