Chapter 2687 Mysterious Boundary

Fang Bai followed the trail and found that the mysterious Demon Emperor's aura finally disappeared in Tiantun City.

Fang Bai guessed that the mysterious Demon Emperor must live in a demon residence in Tiantun City, and must have set up hidden formations inside and outside the demon residence.

From this, it can be seen that the mysterious Demon Emperor not only understands the art of formations, but also must be extremely proficient in it, otherwise it would be difficult to hide from Fang Bai, who was unparalleled in formations in his previous life.

Fang Bai, who entered Tiantun City as a beginner of the Demon Emperor Realm, wandered around the city to investigate the residence of the mysterious Demon Emperor.

Tiantun City is 100,000 miles in radius, and every demon residence in the city is equipped with formations, but in Fang Bai's eyes, those formations are not worth mentioning at all, and his spiritual consciousness can easily penetrate into them.

One day, when Fang Bai was investigating an inconspicuous demon residence in Tiantun City, his spiritual consciousness was blocked, and he found that the formations set up around the demon residence were surprisingly exquisite, so he guessed that this was most likely the hiding place of the mysterious Demon Emperor.

So Fang Bai found a nearby demon residence and lived there to monitor the movements of the mysterious demon emperor, while thinking about how to crack the formation of his demon residence so that his consciousness could penetrate into it.

Fang Bai, who was unparalleled in the formation of the fairy world, encountered considerable difficulties when cracking the formation set up by the mysterious demon emperor, so he became more and more certain that the other party was the descendant of the Devouring Heaven Emperor.

Only a powerful person like the Devouring Heaven Emperor could have such an outstanding descendant, and the formation set up by him could even stump Fang Bai.

However, for Fang Bai, the difficulties were only temporary. If he was given enough time, there would be no formation in the world that he could not crack.

More than ten days later, when Fang Bai had some clues about cracking the formation, he suddenly found that the mysterious demon emperor had left the demon residence, left the Devouring Heaven City, summoned a wind roc, and flew towards the fairy world.

"What is this guy doing in the fairy world again?"

After the mysterious demon emperor flew thousands of miles away, Fang Bai appeared in front of his demon residence, talking to himself.

Fang Bai was not in a hurry to chase the mysterious Demon Emperor, but quickly cracked the formation of his Demon Residence and entered it.

Fang Bai thought that this was the place where the mysterious Demon Emperor lived, and it was protected by the supreme formation, so there might be some good things in it.

Sure enough, after searching in the Demon Residence for a while, he found an emperor-level space magic ring, which contained many star-shining stones.

This discovery made Fang Bai very happy.

Although the emperor-level space magic ring could not be compared with the five-element space ring, its space area was also quite large, and it was no problem to accommodate millions of immortal stones.

The star-shining stone was taken from the endless space, and its effect was comparable to that of the emperor pill. It was extremely difficult to obtain it, which was a great gain for Fang Bai.

Unfortunately, the space magic ring worn on the finger of the mysterious Demon Emperor was always carried by him. If he wanted to get it, he would have to fight a big battle.

Afterwards, Fang Bai also left the Swallowing Sky City, summoned a wind roc to ride on it, and followed the breath of the mysterious Demon Emperor and tracked him.

The mysterious Demon Emperor thought he had concealed his aura very well, but he didn't expect Fang Bai's sensing ability to be extremely sharp. The two were separated by more than 10,000 miles, flying to the fairyland one after the other.

Fang Bai was not afraid of being discovered by the mysterious Demon Emperor. After all, his current identity was just a small Demon Emperor at the initial stage, and in his eyes, he was just an ant.

How could a lion pay attention to an ant?

However, Fang Bai still tried to keep a distance of tens of thousands of miles from the mysterious Demon Emperor, outside the detection range of his spiritual sense, so as not to arouse his suspicion.

Not long after, the mysterious Demon Emperor and Fang Bai flew over the Tianyin Mountains at the junction of the fairy and demon worlds and entered the magic ring.

After the mysterious Demon Emperor arrived at the fairyland, he suppressed his own cultivation and transformed the demonic energy into fairy energy, looking like a high-level fairy emperor.

After Fang Bai returned to the fairyland, he no longer operated the Heaven Swallowing Art and maintained the initial stage of the fairy emperor.

Fang Bai couldn't guess what the mysterious Demon Emperor's purpose was in entering the fairyland, but he knew that he would never come for no reason, so he followed his breath all the way to track him to see what he wanted to do.

The central area where the four wildernesses of Chengtianyu, the ninth heaven of the fairyland, meet is a strange area with a radius of 100,000 miles.

Within this 100,000-mile range, there are mountains and waters, fairy birds and beasts, desert forests, grasslands and flowers... It brings together almost all the landforms and scenery from the secular world to the fairyland.

In addition, the space here is filled with fairy spirits of various attributes, pure and rich.

The most peculiar thing is that multiple attributes of fairy spirits coexist in a space and get along harmoniously without any conflict.

In some holy places of cultivation in the fairyland, if there are fairy spirits of different attributes, it is difficult to be compatible with each other. Once they collide, it will cause strange phenomena in the world.

For example, water and fire, fire and gold, gold and wood, etc., once they collide, they will be turbulent and restless.

However, in this central area, the immortal energy of gold, wood, water, fire, earth, wind, and thunder are all in harmony, which puzzles many immortals.

Originally, this place has pure and rich immortal energy of various attributes, which should be a unique holy place for cultivation in the immortal world, and many immortals have also thought of this.

Unfortunately, this area is like an independent kingdom, refusing any immortal to enter.

Even the emperors of the three realms will be rejected.

Fang Bai had visited here in the past. At that time, he was at the peak of his strength, full of vigor and confidence, but he was also blocked by an invisible air wall.

Fang Bai guessed at that time that the area of ​​100,000 miles must be a barrier left by a powerful person. Maybe after reaching the realm of the Great Emperor, he can try to break through it again.

At this moment, Fang Bai followed the mysterious Demon Emperor all the way to this most mysterious area in the fairy world.

"Does he want to enter this barrier?"

Shortly after the mysterious Demon Emperor approached the barrier, Fang Bai also appeared at the edge of the barrier, and the distance between him and him was shortened to about a thousand miles.

There were many immortals wandering around the barrier. These immortals saw the extraordinaryness of the barrier and hoped to find some opportunities.

With so many immortals, Fang Bai was not worried that the mysterious Demon Emperor would pay attention to him again.

The mysterious Demon Emperor stood on a hill at the edge of the barrier, looking at the scenery in the barrier with burning eyes, his expression kept changing, and he seemed very excited.

"This mountain belongs to me, the Immortal Emperor. Get out of here!"

A moment later, a peak Immortal Emperor flew over from afar and landed on the top of the mountain where the mysterious Demon Emperor was, then waved at the mysterious Demon Emperor as if to shoo away a fly.

"That guy is dead!"

Fang Bai noticed the movement here and could not help but mourn for the peak Immortal Emperor.

Sure enough, the mysterious Demon Emperor didn't even look at the peak Immortal Emperor, and punched out casually, instantly killing the arrogant peak Immortal Emperor into pieces.