Immortal cultivation starts with copying.

Time in the netherworld is chaotic; the alternation of sun and moon is too frequent and too random.

This also caused Chen Yunhao to not know how long he had been in the Netherworld.

He had no idea how far he had flown. Of course, in his mind, he felt that it was not far. Indeed, the geographical environment and danger of the Netherworld greatly restricted his flying speed.

Coupled with the various dangers that occurred from time to time, he only remembered that he had changed more than twenty flying boats under his feet.

I encountered too many of the same ghost demons I had killed before along the way.

After all, a living human like him, after entering the Netherworld, is like a night pearl, too dazzling and too attractive.

Along the way, he killed at least twenty or thirty ghosts, monsters and demons.

These are all those who are as strong as him. The rest are just cannon fodder and are not counted.

Fortunately, so far, he has been able to handle it and has not had to use his life-saving methods.

In fact, in his opinion, the easiest things to deal with are ghosts, monsters and demons, and the most difficult things are the ubiquitous space cracks.

Even if he asked the soul to leave, it would be of no use. He had no way to predict and deal with the space cracks. He could only rely on himself to be careful.

Generally speaking, Chen Yunhao's stupid method was still effective. He used the flying boat as the first layer of protection, and had five Vajra Talismans as a shield on his body. These two methods allowed him to escape several sudden attacks from space cracks.

But this method is only suitable for him, and other cultivators cannot learn it at all. After all, everyone's resources are limited, but Chen Yunhao has unlimited resources and can afford to spend them. This is his confidence!

In a word, without various resources, there is no way to talk about cultivation, and becoming an immortal or not is just empty talk.

Chen Yunhao has been walking in the Netherworld for so long, but he has never encountered a Yinming grass, let alone one that is ten thousand years old.

The Yinming grass, which can reach the ten thousand year level, is not only needed by humans, but also by ghosts, monsters and demons. It can be used to consolidate and enhance the soul and is a very sought-after treasure.

The deeper you go into the Netherworld, the more chaotic the atmosphere becomes.

More space cracks appeared in the sky, and the aurora would flash from time to time. In some areas, there were even continuous thunders.

In places where there are dense thunders, it feels as if the sky is falling, and thunders are pouring down from the void.

The Yin thunder was black and silent. If Chen Yunhao had not practiced the Thunder Art for many years, he would have avoided that fatal place from afar.

The Yin Lei Zone is like a vortex with great suction. Even from more than ten miles away, Chen Yunhao can feel the pulling force.

Yin Thunder has little power on the physical body. Unlike Heavenly Thunder, it targets the soul.

No matter whether they are human, demon, monster or ghost, once they are hit by this Yin thunder, I dare not say that their souls will be shattered, but at least half of their three souls and six spirits will be gone.

After Chen Yunhao learned the magic of thunder, he knew that there are two kinds of thunder in the world. One is the extremely yang and strong heavenly thunder, including the thunder of catastrophe.

The other type is the Yin Thunder, which is extremely yin and cold. Yin Thunder does not belong to the spiritual world, but is born in the void. It is a kind of divine thunder that is specifically used to restrain extraterritorial demons.

Chen Yunhao has been cultivating immortality for hundreds of years and has traveled all over the lower world. Even though the spiritual world is extremely huge, he has almost traveled through half of it. He has only heard of the existence of Yin Lei and has never seen it with his own eyes.

So Chen Yunhao stood more than ten miles away, watching from afar, not daring to get close at all.

No one knew where the sky above Yin Lei was connected to, but just one glance at it made Chen Yunhao feel a little scared, as if it was the huge mouth of a monster that could devour everything.

It's a pity that there is no skill to control Yin Lei. Otherwise, if I could control both Yin and Yang thunder, I would not be afraid of traveling around the world.

Chen Yunhao sighed in his heart and turned away reluctantly.

That Yin Lei area can be said to be a wonder of the world, and I am afraid it is the only one in the entire spiritual world.

These are all strange phenomena in heaven and earth, indicating that we are close enough to the edge of the Three Realms.

Only when the three realms collide and rub against each other will this rare phenomenon of heaven and earth appear.

The increase in strange phenomena in heaven and earth also means that we have entered a more dangerous area.

The space cracks in the sky no longer appeared one by one, but in large patches.

Chen Yunhao even saw a space crack, as if the sky had cracked open, and it was extremely huge.

Through the huge space crack, Chen Yunhao saw the vast void and two cloud-like existences, almost touching each other.

Those two huge cloud-like existences are the Netherworld and the Demon World. In the void adjacent to the three realms, there is not nothing, but lightning like a net, covering the entire void.

The deeper you go, the fewer ghosts, monsters and demons you encounter.

Even the lowest mosquitoes know how to seek good fortune and avoid misfortune, let alone ghosts and demons who are as smart as humans. They will never approach the depths of the underworld.

Only Chen Yunhao was still going upstream. In the face of this strange phenomenon in heaven and earth, he felt his own insignificance and had long wanted to retreat.

But the most basic factor in whether a cultivator can become an immortal is his character.

Everyone knows that a cultivator who likes to back down is destined to have no chance of becoming an immortal.

Therefore, the thought of retreating only flashed through his mind for a moment, and there was no need for the spirit of the weapon to urge him. He could clearly tell what was more important!

Now Chen Yunhao no longer dared to fly in the air, but instead used the magic of walking to walk close to the ground.

As long as the spirit of the weapon doesn't say stop, Chen Yunhao will keep going.

The deeper you go into the underworld, the more the rotation of the sun and the moon disappears, leaving only endless darkness, just like walking into the abyss.

Although there are fewer ghosts, monsters and demons here, there is another kind of trouble.

Chen Yunhao kept running close to the ground. From time to time, one or two rat-like monsters emerged from the ground.

It is about the same size as a mouse, but its hair is like thorns. It runs very fast and has sharp teeth and a very ferocious mouth.

Whether they are alone or in groups, they will attack Chen Yunhao desperately if they encounter him.

Chen Yunhao called them spiny rats for the time being. These little creatures had no magic powers, and each one was even weaker than a first-level monster.

However, their bodies are extremely hard, and their teeth are very sharp. With just a few bites, they can bite through the Vajra Talisman shield on Chen Yunhao's body.

One or two wouldn’t matter, but no matter how strong the body is, it can’t withstand Chen Yunhao’s sword energy.

But later, the ground was full of rat holes, as if he had fallen into a rat's nest. Hundreds and thousands of rats rushed out together and pounced on Chen Yunhao frantically, which was a headache.

In the end, they had to call in the lyreworm, using its sonic attack to make the agoutis dizzy, and they were able to escape temporarily.