It is because of Qin Yichen's increasing infusion of aura that the things hidden behind the tunnel begin to get restless. Qin Yichen even feels that behind the rock of the tunnel, a huge energy body is becoming more and more violent. Qin Yichen hastens to sacrifice the red demon sword. His heart moves. The red demon sword goes through his aura wall and is in the fire.

The red demon sword is fond of high temperature. As soon as it enters the space full of fire, it becomes more like a fish in water. After a burst of sword sound, Qin Yichen controls it to fly up and down in the internal space and tries his best to absorb the high temperature. Soon, the red demon sword turns red and seems to have accumulated enough strength.

With a smile, Qin Yichen controls the red demon sword to fly directly to the rock at the end of the tunnel. The red demon sword, which originally cut iron like mud, is extremely hot at this time, and its power is greatly enhanced. Therefore, this blow, boom, will easily smash the rock.

After the dust disappeared, Qin Yichen saw that the source of the fire was a stone the size of a football. The stone was bright red and dazzling.

Qin Yichen was surprised. He was also surprised. He never dreamed that this time, he saw such a big Huoyan crystal!

Huoyan crystal is a kind of exotic treasure bred in the spiritual pulse, which is a rare refining material for fire cultivators. If a thumb sized Huoyan crystal is integrated into the flying sword, it can improve the quality of the flying sword. Qin Yichen himself has never seen such a big Huoyan crystal!

Moreover, ordinary huoyanjing doesn't attack the creatures close to it. It's just a special material. However, this huoyanjing can realize its close and attack itself. It can be seen that this huoyanjing is in the process of self refining!

As long as there is the essence of heaven and earth, everything in the universe has its own refining process. People can become immortal, animal can become a monster, and the heaven earth material is nurtured under the nurture of spirit, and it may also be refined to a new state. The high order fairy grass can be refined into fine, and so is the flame Yan Jing.

This huoyanjing has no advanced consciousness now. It just has self-defense instinct. I'm afraid that it has been bred for at least ten thousand years. If you give it thousands of years, this huoyanjing may really be able to cultivate into essence. If it is refined into essence, then its strength will reach a peak. At that time, let alone Qin Yichen, Even ten Qin Yichen could not cope with it.

At the moment, huoyanjing's attention seems to have been shifted to the past when facing the direct attack of the red demon sword. It immediately releases a fierce flame to burn the red demon sword. However, it doesn't understand the characteristics of the red demon sword at all. The sword is made of xuantiejing, which is extremely resistant to high temperature after refining. Moreover, the sword is refined by Qin Yichen, and has full fire attribute. Fire is very important to him, Just like water to fish, this fiery crystal is the primary stage of refining. It can only burn the red demon sword with its own flame. In this way, it is inferior. Instead, the red demon sword can use its energy to strengthen itself.

But even so, Qin Yichen still feels a little uncomfortable. If the usual huoyanjing is found, anyone can take it directly. But the one he met has already started primary refining. Otherwise, he just needs to wave his hand and put it into the storage ring finger to finish everything.

The red demon sword doesn't need Qin Yichen to provide him with aura at this time. After he attacks, he releases the energy accumulated in his body, and then continues to absorb energy from huoyanjing itself and attack it again. Huoyanjing's divine consciousness is very single and simple. In other words, it's also very weak. As long as Qin Yichen can defeat it, Then this flaming crystal can be owned by itself.

The attack of the red demon sword makes the spirit of huoyanjing fight back regardless of everything. For a moment, the fire is burning more and more vigorously in the space squeezed by Qin Yichen's aura wall. Qin Yichen also bears the pressure of the fire in the space and constantly mobilizes the aura in his body to make the Dantian run to the extreme. A large number of pure aura gather in the aura wall to resist the energy of huoyanjing.

The red demon sword is like a fish in water in this sealed environment. Every attack is a full-scale attack, and each time it causes damage to huoyanjing's divine sense. After all, huoyanjing's divine sense is only a primary state, and it can use very little of huoyanjing's essential energy. If it takes it to refine the whole huoyanjing, its strength will be innumerable times stronger than it is now.

Huoyanjing put a big fire to attack Qin Yichen before, and then was attacked by the red demon sword, an opponent that it could not defeat. After several rounds, huoyanjing gradually lost the battle. The light of huoyanjing became more and more dim. At the end of the crossbow, it could no longer send out more flames to entangle with the red demon sword, while the red demon sword pursued after the victory, He absorbed the flame in the whole compressed space to himself and launched the final offensive against the flaming crystal.

Finally, after the last round of attack of the red demon sword, huoyanjing has been completely darkened. The little divine sense in its infancy is completely destroyed by the red demon sword. The temperature at the end of the whole tunnel gradually drops, and the remaining flame is absorbed by the red demon sword. The whole tunnel is darkened again. Only the red demon sword and huoyanjing are emitting dim red light.

Qin Yichen quickly stepped forward and picked up the Huoyan crystal. Although it is a treasure of fire system and has amazing energy, it has almost no temperature without the refining of divine consciousness, just like an ordinary spirit stone. Qin Yichen took this Huoyan crystal in his hand and looked at it carefully, Only then discovered that the flaming crystal is slightly different from the flaming crystal which I have seen, as if it already contains some spirituality, which is not possessed by the ordinary flaming crystal.

Maybe it's because it has entered the refining stage of budding divine consciousness that it has such a change. Qin Yichen doesn't care. Spirituality is a good thing. As long as he doesn't have divine consciousness, he can use it for him. Then, he put huoyanjing and red demon sword into the storage ring at the same time, and he began to think about how to use this huoyanjing, First cut the size of thumb from its body, and then refine the red demon sword again. If the red demon sword is tempered with huoyanjing, its quality will be improved more than one level!

Then, Qin Yichen turned to leave the end of the tunnel and met Luohu at the corner. As soon as Luohu saw Qin Yichen come out, he quickly asked, "master, what was the situation inside just now? I vaguely feel that the temperature has increased a lot all of a sudden, forcing me out of more than 100 meters, the temperature has gradually dropped, and then I come back in again. "

Qin Yichen said with a smile: "it's a good material of fire. It's called huoyanjing. It's not too old. I've cultivated a little divine sense, so it's a bit powerful. But now its divine sense has been defeated by me, and the material itself has been put into the storage ring."

On hearing this, Luo Hu was overjoyed and asked, "master, this huoyanjing should be of great help to your cultivation?"

Qin Yichen said with a smile: "it can't help the cultivation itself, but it can greatly promote the cultivation of the magic weapon of fire attribute. I believe that if we practice the red demon sword again after this time, we can certainly improve the strength of the red demon sword more than one level."

"That would be great." Luohu can't help but say: "in this way, your strength will be greatly improved." Said, Luo Hu asked again: "then there should be no problem here in the future?"

"No problem." Qin Yichen nodded and thought of what Luohu had done here before. He said with admiration: "Luohu, you have dealt with this matter very well. It can be said that all aspects are involved. This really surprised me. I didn't expect that your mind is so meticulous. It's totally different from your appearance."

Luo Hu scratched his head awkwardly and said with a smile: "elder, my image in your eyes before was not that kind of stupid big guy who didn't think about everything and didn't have a root?"

Seeing his embarrassed appearance, Qin Yichen said with a smile: "it's not so outrageous as what you said, but your performance this time really makes me look at it with new eyes." After that, he said, "let's go out and tell them that the high temperature inside has disappeared. Then you and Lao Xu will go to the local government and ask them to issue an investigation report, saying that sulfur, nitric acid and other substances have chemical reaction. Give a general explanation, and the matter can be turned over, However, the workers' comfort and follow-up pension must be in place. Money is not a problem. "

Luo Hu nodded gently and said, "I know, master. I will do this well."

Qin Yichen immediately said: "after daybreak, you have to work hard to send me back to that song. I have to hurry back to Jinling to refine the red demon sword."

Luo Hu can't help but say: "master, this is the spiritual vein, and the land is vast and the people are sparse. In my opinion, it's better for you to practice here than in Jinling?"

Qin Yichen also knows that it's much better to practice here, but song Wanjing is not absolutely safe in Jinling now. When she was closed in Jinling, her mobile phone was always on. Once she had something to do, she could arrive in a very short time. However, if she was practicing here, if she had an accident, she would not be able to catch up with her for a day, If she had any problems, he would not be able to deal with them. So he decided to go back to Jinling first.

Therefore, as soon as he got out of the mine, Luohu immediately prepared the car. Qin Yichen pretended to be at a loss and told Lao Xu and the workers that the high temperature inside had disappeared. He didn't know what was going on. He suggested that Lao Xu not return to work for the time being. He would return to work after the government's investigation results showed that there were no safety hazards.

After explaining everything, Qin Yichen immediately contacted the airline and applied for the route. He took the car of Luohu and rushed back to Naqu.