This process is not very difficult.

Of course, it's not particularly simple.

It's just that it's not so difficult for Lin Feng. Other people can't open the mysterious iron box at all. Even if it can be opened, it's estimated that it will be directly killed by the reverse bite of the mysterious iron box. This is not alarmist. That's the truth.

In the whole process of the gap of the mysterious iron box becoming larger and larger, Lin Feng has been very careful. He must always be on guard against the reverse bite of the mysterious iron box, otherwise, anything may happen, and the whole process will be extremely dangerous.

Lin Feng was really influenced by the mysterious iron box. To be exact, he was influenced by the power released by the mysterious iron box. There were many cracks in his body, and blood flowed out of the cracks.

His soul seemed to be affected. He felt that his soul was about to be swallowed up by a dark abyss. This feeling was really terrible.

However, this is the price paid to urge the mysterious iron box.

The power released by the mysterious iron box also had an impact on the mysterious strong man. He was severely impacted, and his originally illusory body became more illusory.

"What a terrible attack!".

The mysterious existence has a cold, dark voice and endless killing intention.

This is because he has always been with the wind and water. Where will he be injured, especially in the hands of a young monk? Such a thing has never happened. Now, he is naturally angry.

And Lin Feng also analyzed his psychology before.

Lin Feng feels that he is sensitive and can't stand any failure or setback. His heart is not necessarily strong. In fact, many people think that the inner world of the strong must be strong, and there is no basis at all.

Whether the inner world is strong or not has no direct connection with whether it is strong or not.

It has an important relationship with this person and what he has experienced.

Environment can change a person.

Therefore, the inner world of the strong is not necessarily strong, and the inner world of the weak is not necessarily fragile.

"Ten thousand laws!".

The mysterious strong man spoke. When his voice fell, countless runes appeared on the surface of his body.

After seeing those runes, Lin Feng's eyelids couldn't help beating violently.

Those runes made Lin Feng feel very dangerous. They were a bit similar to the pioneer runes, but they didn't seem to be the pioneer runes. Lin Feng couldn't help moving a little. Various runes or arrays between heaven and earth were prohibited, which were divided into two different forms.

The first form is man-made. Now it is basically this man-made Rune and array prohibition.

Friars show all kinds of extraordinary abilities by learning runes and array prohibition.

Therefore, many great array mages have been created. Apart from others, the vein of Tianshi Dao has been inherited to Lin Feng. Every successor of Tianshi Dao is great and worthy of respect, but the fate is a little tragic.

In this world, in addition to Tianshi Dao, there are other terrible inheritance. His attainments in runes and array prohibition are not much worse than Tianshi Dao.

There may be fewer acquired runes, but more congenital runes reach the height of Tianshi Dao.

Therefore, the second kind of Rune mentioned here is the congenital Rune bred by heaven and earth. Then, in the process of the pioneers and the mysterious existence, the congenital Rune bred by heaven and earth should be regarded as the oldest congenital Rune between heaven and earth.

Theoretically, these oldest congenital runes should be the most powerful runes.

After a long period of improvement, the power of these runes has been continuously enhanced and perfected. In the post pioneer era, the mysterious existence in front of us is indeed no small matter.

When the power of those runes is released, the power of those runes is directly suppressed towards Lin Feng, not only for Lin Feng, or not for Lin Feng, but for the mysterious iron box controlled by Lin Feng.

Two different forces collide together, annihilate and disappear silently. It seems that there is no big fluctuation, but Lin Feng knows that this is the real great collision. If the two energies do not annihilate each other, the energy just generated by the collision can even destroy a big world.

"What a terrible means!".

Lin Feng was frightened. As he guessed, when those mysterious and Ancient Runes emerged, the combat effectiveness of this mysterious strong man was greatly improved.

Then, the next situation is extremely bad for him.

Lin Feng's look became extremely dignified. He continued to try to open the mysterious iron box. The larger the gap opened by the mysterious iron box, the more powerful the power released. Therefore, Lin Feng felt that if the gap opened by the mysterious iron box was large enough, it should be able to resolve the immediate crisis.

However, this powerful existence did not give Lin Feng enough time. He released a more powerful attack, and more powerful forces surged in. These forces directly acted on the mysterious iron box, which made Lin Feng feel that something incredible appeared. After the mysterious iron box withstood this force, it did not continue to resist, but began to close actively.

This is the first time.

When the mysterious iron box was oppressed, even if Lin Feng didn't urge the mysterious iron box, the mysterious iron box would take the initiative to fight back, but now the mysterious iron box is going to be closed. Lin Feng thinks there are three reasons for this.

The first reason may be that the strong one is so powerful that the mysterious iron box feels the pressure. The mysterious iron box is unwilling to completely tear its face with this statue and chooses to take the initiative to step back.

The second reason may be that the mysterious iron box is unwilling to continue to cooperate with him, or is unwilling to let Lin Feng use him as a tool to deal with others.

The third reason may be that the power released by the mysterious strong man is very special, which can suppress the mysterious iron box, so the mysterious iron box is gradually closed.

But no matter which reason, Lin Feng's dangerous situation must be changed. If it can't be changed, Lin Feng will be doomed this time. Lin Feng can't help being extremely anxious. How should we deal with this situation?

Lin Feng felt that his situation was getting worse and worse. It seemed that it was difficult to mobilize his mana. He was suppressed too much.

"In the face of absolute strength, even if you have some terrible things, you still can't be of any use!". This mysterious existence is walking towards Lin Feng step by step, with a gesture of controlling everything.

He slapped Lin Feng, as if he wanted to abolish Lin Feng's Dantian.

At this critical moment, Lin Feng's deepest position in his mind, a silent force, began to recover.