The night was covering Beicanglingyuan, and Mu Chen was quietly sitting cross-legged on the bed. In his hands, white light was flowing. In the smooth and round beads, there was a white dragon roaring and roaring. The low dragon roar made the air vibrate.

Mu Chen stared at the White Dragon Spirit Pearl in his hand, and a look of doubt flashed through his eyes. In the White Dragon Spirit Pearl, there was extremely powerful spiritual power stored. He could mobilize some of these spiritual powers, but he vaguely felt that this White Dragon Spirit Pearl should not only have this effect, but whenever he tried to invade the White Dragon Spirit Pearl, he would be bounced back, and the power inside resisted his entry.

That kind of resistance seems weak, but it is actually extremely terrifying. Even Mu Chen dared not break through without authorization, otherwise the rebounding force would probably cause him to suffer a lot.

"The inside of this White Dragon Spirit Pearl... seems to have been set up with a seal." Mu Chen frowned and murmured to himself.

"You guessed it right." Jiuyou Bird's thought suddenly sounded in his heart.

"Do you know what's going on?" Mu Chen was slightly happy and asked in his heart.

"This White Dragon Spirit Pearl should be the inheritance object left by the White Dragon Supreme, but a seal has been set up inside it. With your ability, it may not be broken." Jiuyou Bird said.

"Can you break it?" Mu Chen asked quickly.

"Now, it may be a bit difficult." Jiuyou Bird said helplessly. After all, it has not been completely restored.

"What should I do?" Mu Chen was a little dumbfounded. If the seal could not be opened, wouldn't he have to stare blankly?

"Breaking this seal may allow you to borrow external power." Jiuyouque pondered.

"External power? What does it mean?" Mu Chen was a little surprised. Where did he borrow such a powerful external power from?

"Where are you going to tomorrow..."

Mu Chen's heart moved and said in surprise: "You mean...Thunder Domain?"

His eyes were slightly brighter, and there was an extremely huge and terrifying external force in the Thunder Realm. If he could borrow it, he might indeed be able to break the seal in the White Dragon Spirit Pearl.

"Um."

Mu Chen nodded slightly, holding the White Dragon Spirit Pearl tightly with his palm, a flash of heat flashed through his eyes, wishing he could enter the Thunder Realm now, and then use the power to crack the seal inside the White Dragon Spirit Pearl.

"Okay, then I will enter the Thunder Realm tomorrow!"

Hearing Mu Chen's words, Jiuyouque's thoughts were also excited: "This time I want to refine enough Heavenly Thunder Pearls in it. We are only less than two million spiritual values, so we can buy the essence and blood of Beiming Long Kun, right?"

Mu Chen nodded with a smile. He obtained a total of 4.5 million spiritual values ​​in this Heavenly Level mission, which was only more than two million away from the seven million spiritual values ​​of the Beiming Dragon Kun.

Although this is still not a small number, at least, it is already very close.

Mu Chen stroked the White Dragon Spirit Pearl with his palm, and some curiosity and expectation arose in his heart. If Jiuyou Bird obtains the essence and blood of Beiming Dragon Kun, he should be able to completely recover and escape from the shackles of the spirit beast and become a real divine beast, right?

It should have become very powerful at that time, right? I can't wait to see it.

...

The next day, it was still early in the morning. After Mu Chen and Luo Li separated, they immediately set off and rushed towards the direction where the Thunder Domain was.

In the twisted space outside the Thunder Realm, countless students were still pouring in. In it, Mu Chen could feel many people with powerful spiritual power fluctuations and immediately smacked his tongue. It seemed that many people were working hard to practice for next month's hunting battle.

In addition to the twisted space, there are some huge hanging stone platforms. The terrifying crowds of people rushed from all directions and finally entered the Thunder Realm through these stone platforms.

Mu Chen also landed on a huge platform. When his vision swept, he suddenly stopped at the edge of the stone platform. There was a silver giant monument, and there seemed to be thunder flashing on the giant monument.

Around the giant monument, there were figures full of people, pointing at the silver monument from time to time. Occasionally, whenever the giant monument flashed with silver light, some exclamations burst out.

Mu Chen couldn't help but shoot along the projection, only to see some names with flashing lightning arcs engraved on the stone tablet, which seemed to be very unusual.

"What is this?" Mu Chen was a little surprised. He didn't seem to notice the stone tablet last time.

"This is the Thunder Domain Monument, specially used to record the names of those outstanding students who sprinted to the Thunder Domain... This is also a kind of achievement." A man who seemed to be an old student smiled.

Mu Chen suddenly realized, and glanced over and took the information on the stone tablet into his eyes. At the top, he saw some familiar names.

Shen Cangsheng, the thunder domain sprint, the highest level, the ninth level.

Li Xuantong, Thunder Domain Sprint, the highest level, the eighth level.

Su Xuan, the highest level, the seventh level.

Crane Demon, the highest level, the seventh level.

Li Peng, the highest level, the seventh level.

......

The dense thunder pattern fonts are flashing, and each name represents a powerful achievement. There are ten layers in the Thunder Realm. The further you go, the more terrifying the thunder power in the Thunder Realm. Those with a weaker strength dare not stay in it.

This Thunder Domain Monument can also reflect from one aspect how many hidden dragons and creeping tigers are there in the Beicangling Courtyard. In addition to Chen Cangsheng and Li Xuantong, who can distance themselves from behind, nearly dozens of others followed closely behind Su Xuan and the He Demon. Some names have never been seen at the top of the Heavenly List, but obviously, the strength they have should not be underestimated.

"It's worthy of being Shen Cangsheng."

Mu Chen sighed that the highest level he had sprinted before was only the fourth level, but Chen Cangsheng directly reached the ninth level. If he went further, he might be able to reach the last level of the Thunder Realm.

Such strength is really shocking.

Li Xuantong was not weak either. He rushed to the eighth level and followed Chen Cangsheng. This guy is worthy of being a powerful figure who can challenge Chen Cangsheng.

"I'm going to try this time. Which level can I sprint to?" Mu Chen's eyes flashed with a look of eagerness. The last time he entered the Thunder Realm, he was only the strength of the Divine Soul Realm, but now he has entered the Rongtian Realm. He has many powerful methods.

Mu Chen glanced at the Thunder Domain Monument and stopped. He moved his body and rushed into the twisted space. With the flashing lightning, he had already appeared in the thunder-torn domain.

In the thunder realm, the sky was still gloomy, and the overwhelming thunder kept falling. The rumbling thunder echoed throughout the space, causing the heaven and earth to shake.

This is not the first time Mu Chen has come to the Thunder Realm, so he is somewhat familiar with it. The thunder power of the first layer of the Thunder Realm is too weak and is completely unsuitable for him now. Therefore, he did not hesitate at all and directly activated his speed to the extreme and went deeper.

Mu Chen is obviously much stronger than the last time he entered here, so in just less than ten minutes, he had already rushed into the fourth floor.

However, he just stayed on the fourth floor for a moment, and felt that the thunder power there could not help him now, so he decisively gave up and entered the fifth floor again.

In this thunder realm, generally entering the fourth level requires the strength of the Rongtian Realm, while in the fifth level, it is a significant improvement. At the worst, it is necessary to reach the strength of the late stage of the Rongtian Realm, or even the quasi-transformed Heaven Realm.

At the later level, the requirements for strength are also more stringent.

Of course, level is not the only criterion for judging. With powerful means, you can still pass...

With Mu Chen's current strength, there was not much difficulty in sprinting to the fifth level. When he entered the fifth level, he just made a slight sense and shook his head again.

The power of thunder here does not easily gather the power that is enough to break the seal in the White Dragon Spirit Pearl.

He started sprinting again.

In just over a dozen minutes, he encountered the sixth level of the Thunder Realm barrier, but he just punched it out, and the violent spiritual power training was torn apart.

His figure flashed, and he swept through the crack and entered the sixth floor of the Thunder Domain.

Rumble!

When Mu Chen entered the sixth level of the thunder domain, the shocking thunder sounded suddenly in his ears, as if it was shocking the blood in his body boiling.

He raised his head and said that the sixth floor of the thunder domain space was even darker. The thunder clouds in the sky were almost invisible. Thunders like giant pythons penetrated the world, and that scene was like the end of the world.

Mu Chen sensed the violent spiritual power of heaven and earth in the world. After a while, he shook his head slightly: "It's not enough!"

Mu Chen pondered for a moment, looked up at the depths of the thunder space, and further down there was the seventh level of the Thunder Realm. There, even people with the strength in the early stage of the Huatian Realm could not resist the bombardment of thunder.

"We need the power in the middle stage of the Huatian Realm..."

Mu Chen narrowed his eyes slightly, and then his body suddenly flew out. If he wanted to quickly break the seal in the White Dragon Spirit Pearl, he could only rely on the powerful thunder power in the thunder domain, so he had to go as deep as possible.

Although the power in the middle stage of the Huatian Realm is powerful, it is not that simple to stop Mu Chen.

Mu Chen held his palms tightly, and his black eyes reflected the thunderous world, which looked particularly sharp.

After Mu Chen flew over the sixth floor of this Thunder Domain, his speed began to slow down for a long time, because in front of him, the space was distorted, and a layer of thunder barrier penetrated the world and blocked the front.

Beyond the thunder barrier, there are many stone platforms. There are many figures on the stone platforms. Most of the people who can stay here are not names, and they are also famous in the Beicang Ling Academy. What they practice hard here is to one day break through the barrier and enter the seventh level of the field.

Mu Chen's arrival also attracted a lot of attention, and especially when some people noticed Mu Chen's strength, they all looked shocked. The strength of Rongtian Realm could actually reach this sixth level?

Mu Chen didn't care about the numerous gazes. He approached the huge thunder barrier and slowly clasped his palms. He had to sprint in from here.

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