The last material Huan Yin needed was called the pentagonal rhinoceros, which was the pentagonal thing floating directly in front of him.

This five-horned rhino is extremely strange, and each of the five horns is a color, so there are five colors. However, these five colors are not all. In the heart of the pentacorn, the color is even more peculiar, a new color that mixes the five colors, and it is also the sixth color.

Each of the six colors of the pentacorn rhinoceros represents one of the attributes of the five elements, and the sixth color represents the attribute of the five elements mixed, which faintly has a taste of the natural unity of the five elements, and does not even need to be deliberately refined.

The pentacorn rhinoceros is not something unique to the Ghost Domain, it can be found in the entire Demon Cultivation Sea. However, it is extremely difficult to find. Because they often exist in the depths of the Great Murder Land or within some Jedi. In terms of the ghost domain, there is only one place where it is possible to find this pentacorn, and that is the depths of the Fierce Ghost Forest.

Now the five-cornered piece that Huan Yin got has a lot of origin, in fact, it is what he found after the last time the ghost marquis Jiang entered the fierce ghost forest, and it is also the only piece of the Jiang family. Now that Ghost Hou Jiang has taken it out, it shows his sincerity.

"This pentacorn rhinoceros is an excellent forging material, even if it is the best, I hope that this last thing can bring a real qualitative change to my earth fire. Stretching out his hand, the pentacorn rhinoceros was held in Huan Yin's hand. Rubbing this thing with his hand, Huan muttered hoarsely.

The reason why the whole strengthening process ended with a pentagonal rhinoceros was that even Huan himself couldn't find any particularly logical reason. Because there were already nine hundred and ninety-five kinds of materials integrated into the current earth fire, and when he added this last one, there were already too many forces and attributes that he needed to balance. So much so that he didn't even feel like he knew where to start, so much so that he wasn't sure he could completely balance it.

The pentacorn rhino has its own five elements, so it can restrain each other on its own, if you have to find a reason, I'm afraid this is the reason that Huan Yin can give himself now.

After a moment of silence, Huan Yin tried again to adjust his extremely tired body to a slightly better state. Then, he took some pills to boost his qi and tonify his spirit.

"Let's get started. Stretching out his hand, the pentacorn rhinoceros was thrown into the last ball of fire outside the sky by Huan Yin. Suddenly, the colorful colors were reflected by the firelight, and it was accompanied by a "crackling" sound.

The pentacorn rhinoceros is hard and self-reliant, which can be regarded as a system of its own. Therefore, Huan Yin knew that it was not easy to refine this five-horned rhino, and it was even more difficult to let the extraterrestrial fire fuse the attributes of the five-horned rhino.

However, for the steps of "refining" and "melting", Huan Yin had already carried out nine hundred and ninety-five times in this retreat, so even if it was difficult for the pentacorn to refine and fuse, he would be familiar with it, but it would only take longer.

After the pentacorn entered the fire, Huan was silent for a whole day, as if he had settled down. But in fact, he didn't rest for a moment, but kept controlling the flames to completely refine and fuse the pentacorn rhinoceros into the extraterrestrial fire.

Huan Yin could feel that the real difficulty of refining the pentacorn rhinoceros was its central part. It fuses all five attributes and is self-contained, if it weren't for the fact that the Outer Heaven Flowing Fire was really strong, if it weren't for the fact that Huan Yin's flame was really powerful, I'm afraid it would be impossible to take it down at all.

A day later, when Huan Yin opened his eyes, the "refining" and "melting" had ended, and the flame attribute of the Outer Heaven Flowing Fire itself had also been erased by him. As a result, the small flame that appeared in front of him was a flame of a very strange color, which was almost exactly the same color as the central part of the pentacorn.

"Success or failure is a step here. His face suddenly became extremely serious, and Huan Yin knew that the last step of the "group" was the last step he had to face in the material of the pentacorn, and it was also the last step that the entire strengthening of the earth fire needed to do. If this step is completed, the earth will be fired. If there is any mistake in this step, the whole game will be lost.

Looking at the already exaggerated earthy yellow flame, Huan Yin carefully experienced the difference between it and the pentacorn flame for a long time, and wanted to try to find a shortcut or pattern for some combinations.

It's just that he was tempted, but in the end he shook his head helplessly. He couldn't find it, because the attributes inside the pentacorn rhinoceros were already complex enough, and the attributes in the earthy yellow flame were undoubtedly hundreds of times more complex than the pentacorn, and at this point, Huan Yin could almost only resign himself to fate except for being able to follow his feelings.

"I'll succeed!" Huan Yinqiang beat his spirits and suddenly let out a low sigh.

Then, he guided the pentacorn flame slowly towards the earthy yellow flame. It's just less than three feet away, but Huan Yin is doing it very slowly. Until the two flames were less than half an inch apart, he actually guided for an hour.

In this hour, Huan Yin's whole body was already soaked with sweat. Because he was constantly experiencing the movement of the two flames, he was on guard against unexpected situations that could arise at any time.

But fortunately, the two flames have not moved at all during the whole process, just like two ordinary flames, just simply approaching, without the slightest wave.

In the last half an inch distance, Huan Yin's speed increased a little, but he still guided for a while. When the two flames, which had not moved at all, finally came into contact with each other, Huan Yin's heart suddenly tightened.

However, after observing for a while, nothing happened.

"Is this it?" Huan Yin couldn't believe his eyes, he felt that it all seemed to come too easily.

Huan Yin didn't rush to absorb the power of the pentacorn flame with the earth fire, he just let the two flames stop together, and then waited quietly. And this is a whole day, and when a day later, Huan Yin still hasn't waited for any abnormal movement, his spiritual power finally moves.

The final step of "grouping" is only now really about to begin.

Huan Yin's spiritual power surged above the earth fire, and then began to carefully try to absorb the flame power and attributes of the pentacorn flame.

When absorbing the power of inflammation, Huan Yin felt quite relaxed, and he almost felt like it was a matter of course. However, when Huan Yin had just begun to try to absorb the pentacorn attribute, the mutation suddenly appeared!

I only heard a muffled sound suddenly erupted from the center of the earth fire, and after a "bang", the entire earth fire suddenly spread out to both sides, and there was a momentum of direct explosion.

"Not good!" Huan was shocked, he never thought that he had been observing for so long, but now what he was waiting for was this one. You know, he's had combined so many materials before, and it was the first time that he had reacted so violently that he was about to crush the ground fire.

Under the tension in his heart, Huan Yin even forgot about his tiredness in an instant. He hurriedly surged his spiritual power and rushed to the center of the earth fire, pulling the flames that wanted to separate, struggling to maintain the last trace of the bottom line.

So, I saw that the earth fire that was about to be split in two was actually in the middle when there was only a line of connection left, but it stopped strangely. You can see that two flames have appeared in the air, but no matter how rioting these two flames are, they are all pulled by the thin line of flames.

"How can this be, how can it be like this...... Huan Yin insisted, and his divine consciousness suddenly poked out, pouring into the flames, to carefully investigate every place in the earth and fire that might produce repulsive power.

This exploration, Huan Yin was almost so shocked that he couldn't maintain his spiritual power. Because he suddenly found that the current earth fire was inexplicably full of repulsive power, and this repulsive power was not just caused by the pentacorn rhinoceros just now, but many of the attributes he added before seemed to have hidden diseases that had not been dealt with, and now these hidden diseases were all exposed due to the addition of the pentagonal rhino!

"Oh no, I'm still too careless!" Huan Yin shouted that it was not good, in the face of the current situation, I am afraid that anyone will feel extremely powerless, and I am afraid that anyone will also feel helpless.

The feeling of powerlessness suddenly grew in the bottom of his heart, and then soon brought Huan Yin's tired feeling, which made him have a drowsy thought. This is not to blame him, I am afraid that even the ghost Hou Jiang in his heyday will directly choose to give up when he encounters the current situation, not to mention that he is facing it now that he is exhausted?

It's just that once Ruohuan is slackened here, the line he struggles to maintain in the middle will be determined. And when it is broken, the fire of the earth is complete.

His head felt heavier and heavier, and Huan Yin wanted to sit on the ground with his ass, and he wanted to sleep so well.

"Rahu, I'm going to destroy Rahu!" Suddenly, such a voice suddenly appeared in Huan Yin's mind, making him suddenly feel a spirit, and even the thin line of flame that he was struggling to maintain was a little thicker.

His eyes widened suddenly, and Huan Yin whispered in the secret room: "I want to persevere, even if there are thousands of difficulties, can it be more difficult than killing Rahu from heaven?"

Speaking of which, Huan Yin turned out to be in the spirit again, as if he was returning to the light. In the flames, I am afraid that at this moment, there are thousands of repulsive forces waiting for him to solve. And he planned to sort them out one by one, as if he had just added the first material.