No enemy situation appeared at this moment, so Xin Buren naturally had no need to exert the ghost energy of the underworld, so that countless ghost phantoms only existed in wandering form.

According to the Undead King, once the ghost phantom is supported by enough ghost energy, it can become sensitive.

To a certain extent, it is possible to sense an extremely weak breath from the invisible Yichen and issue an alarm to notify the upper level of Youyinmen.

"Then you have to be more careful"

Yichen just thought silently in his heart and did not say it directly.

He knew that the Undead King insisted on walking with him and did not stay in the sun and moon space, but was afraid that the ghost phantom would move.

The Undead King and the Ghost Phantom are basically similar in their perception of human breath.

However, the ghost phantom is under artificial control, while the undead king is completely in a state of freedom.

It is precisely because of this that the Undead King must follow Yichen to prevent unexpected things from happening.

With the company of the Undead King, even if Yi Chen occasionally has a faint breath, he will be covered up by the Undead King, and the ghost phantom will not be given a chance to discover it.

Starting from the place where Yin Wuwei and Xin Buren were staying last time, Yichen was cautious every step and did not dare to neglect the slightest.

Since it is the ghost energy arranged by the old monster Youyin, it must have the source.

What Xin Buren can control is nothing more than accepting the instructions of the old monster Youyin to activate the adjustment.

Even if Xin Buren is useless and replaced with Yin Wuwei operation, it can also achieve the required strength.

Therefore, the safest way is to find the source of the Netherworld Ghost Qi and try to prevent the Netherworld Ghost Qi from leaking out.

Otherwise, once the decisive battle begins, the upper leaders of Youyin Sect can use the ghost spirit to command the ghost phantoms and carry out devastating blows on all armies.

Compared with the ghost phantoms that have been replenished with energy, the human war king is simply vulnerable.

Even peak existences like Mr. Xia Ye and Elder Xuan Dao have almost no way to fight back.

If Yichen hadn't fought hard to get the opportunity, I'm afraid Mr. Xia Ye and Elder Xuan Dao would have been unable to escape from the fog.

Including Yi Chen himself, there is no special means to deal with the ghost energy that reaches a certain intensity, at most it is to protect yourself.

Relatively speaking, the Undead King has a clear advantage.

As long as you do not use the method of devouring or absorbing and refining to attack the ghost energy of the underworld, you can be in a safe situation.

First of all, neither ghost phantom nor ghost energy will easily launch an attack on the Undead King.

When the Undead King simply mingles in the fog, there is no safety hazard unless an accident occurs.

"From here to east"

After careful investigation, the Undead King had some clues to pursue.

A small amount of ghost energy scattered in the fog moves in a certain direction, although it is not easy to detect.

With Yichen's perception, especially when he is invisible and closed, he cannot capture it, and he cannot even distinguish the movement of the ghost energy of the underworld.

The Undead King is different. He is a body of nothingness and does not need to hide anything deliberately. Just search carefully according to his own way.

Suddenly

Yichen did not answer when he heard this. He followed the direction of the Dead King's instructions and continued to investigate eastward.

The little ghost energy swimming in the void was very weak, but the Undead King quickly rushed towards the ground.

With the guidance of the aura of the Nether Ghost Qi, the Undead King and Yi Chen landed diagonally from the void.

The rough direction is facing east, but the location points to the ground deep in the valley.

Minggu is a valley deep in the Qilian Mountains, with rocks and trees on all sides.

The further down, the stronger the aura of the ghost energy of the underworld. Of course, this is mainly the perception of the undead king.

"Uh, there's something weird."

The Undead King rushed in front of Yichen, suddenly stopped landing, and said in confusion.

Swish

Spread the undead energy around, forming a thin barrier.

Put Yichen in the barrier to prevent Yichen's breath from being exposed.

Before in the void, the Undead King felt that the ghost phantom had no intelligence, and as long as Yi Chen was invisible and closed his breath, there was basically no problem.

But here is close to the ground of the Nether Valley, and no one dares to say whether unexpected things will happen.

Now, the Undead King encountered obstacles and could not continue to go deeper.

“I felt it too.”

The undead spirit energy of the undead king can effectively block the breath of Yichen.

If no outsiders appear, it should be no problem to say less words.

Indeed, when Yichen's body was about to fall to the cliff on the ground, a gloomy breath came to his face.

Although it is not as strong as the ghost energy activated by Xin Buren last time, it is much stronger than the one in the fog.

Moreover, the direction of this breath is clear, which is to seep out from somewhere in this rock.

"There is a seal, be careful!"

The Undead King tried it but failed to break through the obstacles around the rocks.

After the sun and moon space and the nourishment of the undead aura, the strength of the undead king has reached the level of a super strong man.

Even better than ordinary early-level super strong men.

With his ability, if he encounters a super strong man who is suspected to be "same type", ordinary barrier formations can basically be cracked.

Above the rock in front of me, there was obviously an energy beyond the control of the Undead King, flowing faintly.

The undead energy surged out, forming a layer of extremely strong penetration energy around the rock, hoping to resolve the barrier formation.

However, what surprised the Undead King was that his undead aura was actually swallowed by the barrier formation.

If you didn't withdraw quickly, the energy that you finally condensed would be deprived of by the barrier formation.

"You are almost the same kind, and it's normal for you to swallow each other."

Yichen was not particularly surprised and said calmly.

With the barrier of the undead energy, Yi Chen was able to display a certain amount of strength and his activity space was also increased a lot.

The breath triggered by the Dead King's attempt to break the formation made Yichen feel familiar.

It was just for a moment that it was difficult to tell where I had seen it through the not-so-rich aura.

This is not the aura released by the barrier formation that envelopes the rocks.

Instead, it penetrated from the barrier formation and drifted slightly in the air, which was very similar to the ghost energy of the underworld, but the one here was more pure.

The real barrier formation did not leave a clear impression on Yi Chen.

I barely felt an energy that was even more gloomy than the undead aura, rushing around the rocks.

"It may be that old monster, who is stronger than mine."

The Undead King does not make a rash move, and expresses his own ideas, and also provides reference for Yichen.

After all, Yichen's cultivation level has not reached the level of a super strong man, and it is difficult to withstand the energy pressure of two super strong man.

If Yi Chen accidentally hurts him, the Undead King will not be able to bear this responsibility.

Let Yichen know the other party’s cultivation strength and possible identity.

The specific way to continue must be decided by Yichen before making a decision.

"You can help me watch out, I'll try."

After thinking, Yichen ordered the Dead King to be a warning to prevent enemies from attacking.

This place belongs to the territory of Youyin Sect, and this barrier formation should be arranged by the old monster Youyin.

Just based on strength, Yichen is not qualified to crack the barrier formation arranged by the old monster Youyin.

However, Yichen's mastery and application of barrier communication may come in handy.

Before exercising barrier communication, there cannot be any crises or hidden dangers.

Fortunately, the Undead King is strong enough, even if the old monster Youyin takes action himself, he may not be able to win with one blow.

Buzz

After the Dead King set up a defensive barrier, Yichen began to implement barrier communication.

Mobilize all the energy around the cliff and convert it into energy that penetrates into the barrier formation.

Under the mobilization of Yi Chen, countless five elements gradually covered the barrier formation while penetrating.

By communicating with the barrier formation, as long as the attributes of the barrier formation can be found, Yichen will have the opportunity to try to crack it.

Even if the person who set up the barrier formation has the strength of a super strong man, Yichen still has a glimmer of hope of success.

Hiss
To be continued...