Immortal cultivation starts with copying.

There was nothing under his feet, so Chen Yunhao didn't dare to take a step, for fear that he would step on empty air and fall into the endless void.

"Eh... How come the lower realm is connected to the demonic realm?"

The spirit of the weapon let out a surprised voice, and the ancient mirror even appeared in front of him from his dantian.

"The Demon Realm! Are you talking about the Demons from Beyond?"

Chen Yunhao's face changed and he asked hurriedly.

"No, stay here and don't move. I'll be back soon."

The spirit of the weapon did not respond to Chen Yunhao's words, but disappeared in a flash the next moment.

Chen Yunhao's face was gloomy, but he could only stand there obediently and dared not move.

He couldn't say that he believed the spirit's words 100%, but at least he was 99% sure that they were correct.

It says it is the Demonic Realm, so it must be the Demonic Realm.

Chen Yunhao had read records about the Demonic Realm in some classics, and it was indeed as the spirit of the weapon had said, the lower world should not be connected to the Demonic Realm.

The Demonic Realm also belongs to the upper realm, and is on the same level as the Spirit Realm, the Demon Realm, and the Netherworld.

But the Demonic Realm is a very special existence. It is not a realm of its own, but a special existence that depends on the three major realms.

As for the Demon Realm, let alone the lower realm, even in the upper realm, whether it is the real demon spirit clan or the ghost clan, they all turn pale at the mention of the extraterritorial demons.

The demons from outside the domain are both visible and invisible, and they can change in many ways. No matter whether they are human demons, monsters or ghosts, as long as they develop inner demons during their cultivation, the demons from outside the domain will take advantage of the opportunity and invade.

Once the extraterritorial demons take advantage of the opportunity and invade, it is equivalent to having your body taken away, which is tantamount to death.

That's why Chen Yunhao was nervous. He had no confidence that he could stop the invasion of the extraterritorial demons.

After only four or five breaths, the spirit of the weapon flew back.

"Senior, have you discovered anything...?"

"You leave first. I'll take this space."

Before Chen Yunhao could ask for clarification, he felt his body being pulled by a force, his eyes blurred, and he returned to the place where he entered.

Chen Yunhao was confused, but soon he felt the ancient mirror returned to his dantian, and the light curtain portal in front of him flashed and disappeared completely.

Only a dark hole remained, like a mine tunnel leading to the depths of the underground, with a hint of cold air blowing towards him.

Chen Yunhao's spiritual consciousness probed into the ancient mirror. He wanted to find the spirit of the mirror and ask what was going on.

"senior……."

As soon as Chen Yunhao opened his mouth, he saw the spirit of the weapon turn its head and look at him.

"This... Senior, have you gained something again?"

Needless to say, the spirit of the weapon must have benefited again just now. No, it was the ancient mirror that benefited again.

The last time he saw the spirit of the weapon, his head couldn’t move.

"That's right, that small space just now wasn't the Demon Realm. Have you ever heard of raising Gu?"

Chen Yunhao nodded when he heard this. The art of raising Gu is quite common.

"That space just now was where someone imitated the Demon Realm and raised extraterritorial demons. It's quite similar...!"

Chen Yunhao took a deep breath when he heard this. He couldn't imagine what kind of method this was.

He simply couldn't imagine that there was any other powerful person in the underworld who had such ability!

"There's nothing magical about this space. It's just a fragment of the Demon Realm that happened to fall into the lower realm and was discovered and transformed..."

The spirit of the weapon saw the shock and confusion on Chen Yunhao's face and explained.

It sounds simple to talk about weapon spirits, but it is not something Chen Yunhao can fully understand. After all, it is beyond his cognition.

No matter what, it was a bargain for Gu Jing and Chen Yunhao.

"There's something down there that's quite a treasure. Go get it."

When Chen Yunhao heard that there was a treasure, he immediately became excited. No one would complain about having too many treasures in his hands!

Chen Yunhao's spiritual consciousness withdrew from the ancient mirror, and he looked at the hole that led directly downwards.

He gripped the Sky-Breaking Sword tightly in his hand again and stepped into the hole.

This hole is not deep, only about ten feet down, and at the end is a small cave about four or five feet in size.

A black bead the size of a fist was floating in the cave, emitting a faint black light.

What kind of treasure is this? Chen Yunhao looked at it for a long time but couldn't recognize it.

So he didn't dare to start easily, so as not to get himself into a mess.

"This is a mustard bead. As the saying goes, a grain of sand is a world. The small space of the demon world just now was hidden in this mustard bead..."

"Is he a natural space treasure?"

Chen Yunhao's eyes lit up and he asked anxiously.

"good……."

The spirit of the weapon replied affirmatively.

This time Chen Yunhao had no more hesitation. He stretched out his hand and grabbed the fist-sized mustard bead in his hand. It was so light in his hand that it felt like he was grabbing a handful of air.

Chen Yunhao looked at the mustard bead in his hand with delight. This was a rare treasure that could only be found once in a thousand or ten thousand years.

He had only seen a record of this thing once in ancient books and knew that it had many wonderful uses, but he had always thought it was something that only existed in legends.

I didn’t expect, I really didn’t expect that my luck would be so good.

Chen Yunhao had seen it in the classics of Thunder Mountain. The greatest function of this treasure was that it could be refined into a portable space.

But there was no record in the classics on how to refine it, so he had no idea.

Chen Yunhao's spiritual sense probed the mustard bead and saw only a void space inside. It was very large, several times larger than the secret realm he had entered.

"Senior, do you have any method to refine it?"

Even Thunder Mountain doesn't have a method to refine it, so finding a method to refine it in this world is as difficult as climbing to the sky, so I can only shamelessly ask the spirit of the weapon for advice.

"Put it in your Niwan Palace, wrap it with your divine thoughts every day, and assimilate it with your breath. After eight or nine times, it will be accomplished."

This mustard bead is a natural thing, not artificially refined, so there is no such thing as a treasure refining secret or magic formula.

The only way is to assimilate it bit by bit over time. Fortunately, there are only seventy-two days and Chen Yunhao has the patience.

The Niwan Palace is located behind the forehead. It is the residence of the mind and consciousness. Like the lower dantian, it is called the upper dantian. It is also a void place hidden in the human body.

Chen Yunhao took the mustard bead and slapped it against his forehead. The next moment, the mustard bead entered his sea of ​​consciousness and was wrapped in layers of Chen Yunhao's spiritual thoughts.

After retreating from the rockery, this trip was very successful, and both the ancient mirror and he were beneficial.

There is still a small area left to search. Even if there is no gain, this trip is worth it, and it is worth it for me to run tens of millions of miles across the boundless sea to get here!

Half a day later, Chen Yunhao returned to the hall where he came from.

I don’t know how long it took me, but I went through the area I could see in front of me like going through a sieve.

He believed in his own feeling that there should be no place left and no treasures left except Jianshan.