The Thirteenth Level of Emperor Ji was set up by the Empress in White herself. Over the endless years, no one knows how many powerful demons have fallen on the way to pass the level.

However, Gu Fei never imagined that a super strong person was imprisoned in the fourth level of the Thirteenth Level of Emperor Ji.

Although this guy was a prisoner, his fighting power shocked Gu Fei.

"Whoosh!"

The old man in black just casually struck the cave with his sword, splitting the entire cave in half. The sharp sword light suddenly struck the outside and disappeared into the distance.

This is a bit scary.

You know, this was just a sword swung by the old man in black. It was so powerful that it stunned Fengxuan and others outside the cave.

Without any hesitation, Fengxuan and the others immediately ran away from them.

Just kidding, they can't get involved in a battle of this magnitude. If they don't want to die, they should stay away.

"boom!"

With a loud noise, terrifying destructive power erupted from the depths of the cave. The next moment, a dazzling ball of thunder exploded underground, and countless lightning bolts burst out of the ground.

Endless amounts of sand and gravel were blasted directly into the sky, and dust swept out in all directions, covering all directions.

"this……"

Fengxuan looked at this scene and was extremely shocked. She became even more suspicious of Gu Fei's identity.

How could a small thunder demon clan have such a powerful existence? This is absolutely impossible.

You must know that the Thunder Demon Clan is a second-rate alien demon race in the eastern realm of the alien demon world and has nothing to do with the first-rate forces.

And the combat power displayed by Gu Fei may have already surpassed the ancient ancestor level.

This guy has been pretending to be a pig and eating the tiger.

Wu Heng, Feng Yang and the others have long been confused.

They never dreamed that there would be such a powerful being in the fourth level of Emperor Ji. This simply gave them no way to survive!

If they were to pass the Thirteenth Level of Emperor Ji, they might not even be able to pass the first level.

It was all thanks to Gu Fei that they were able to get here.

Gu Fei's power far exceeded Feng Xuan's expectations.

"Buzz!",

At this time, the sword roared, and the fierce sword light rushed out from the ground, slashing in all directions.

"this……"

Fengxuan and the others hurriedly evaded.

They don't dare to touch this kind of sword light, let alone force it, even if they touch it, they will be seriously injured. If they are unlucky, they will die directly.

At this time, Gu Fei's thunder power and the sword power of the old man in black were constantly colliding.

The sound of chains colliding continued to sound.

Although the cave was destroyed, the old man in black was still chained to the boulder and was unable to leave the boulder.

Gu Fei was shocked while taking action. If the old man in black got out of trouble, he would definitely not be his opponent.

Because he discovered that the old man in black had an iron chain through his bones, and even his spine was locked by the iron chain.

This means that most of the black-clothed old man's cultivation has been blocked, and he can only exert 20% to 30% of his power.

Even so, Gu Fei still felt a lot of pressure.

This old man in black is definitely a super strong man. If he exists like this, why is he imprisoned here by the empress in white?

Everything happens for a reason, and Gu Fei can't control that much. Now he only has one goal, which is to pass the fourth level of Emperor Ji.

The True Demon Sword in the hands of the old man in black is the key to entering the fifth level of the Emperor's Ultimate.

Gu Fei really risked his life to save his disciples in order to obtain the blood of the Flame Dragon.

If it weren't for the fact that his cultivation level had just reached the middle level of the Emperor, even if the old man in black could only exert 20% or 30% of his power, he probably wouldn't be able to defeat this guy.

Gu Fei guessed that if this guy regained his peak cultivation level, he might be able to compete with the strange demon ancestor Dragon Turtle.

With just one sword strike, the old man in black forced Gu Fei back.

Countless sword lights circled and danced around Gu Fei's body, and the void was directly split into countless dark space cracks by the sword lights.

These space cracks only appeared for a very short time and then disappeared.

Even if one is as powerful as the Strange Demon Supreme, it is not easy to cause damage to the void.

"Leigang body protection!"

Gu Fei did this again.

However, I have to say that Gu Fei's move was really useful, as the violent Lei Gang blocked the surrounding sword light.

"One palm draws thunder and breaks the sky!"

Gu Fei did not hesitate, he raised his right hand and struck towards the old man in black with a palm.

"Rumble..."

The strike of Gu Fei's palm actually caused thunderstorms in the sky. The dazzling lightning tore through the void, and the destructive power blasted directly towards the old man in black.

This is Gu Fei's own Nine Heavens Lightning Palm.

Using his own power of thunder to attract the power of the Nine Heavens Thunder for his own use, the power of Gu Fei's palm cannot be underestimated.

"Are you from ThunderClan?"

The eyes of the old man in black were gleaming. He only had 20% to 30% of his skill and could not use many magical powers. He could not tell the depth of Gu Fei at all.

However, his intuition told the old man in black that the guy in front of him was definitely not as strong as him.

However, after the fight, the old man in black realized that he had seriously underestimated his opponent.

Gu Fei's power exceeded the expectations of the old man in black.

The old man in black swung his sword and directly broke Gu Fei's thunder palm, and the sharp sword light struck in front of him.

"snort!"

Gu Fei disappeared instantly.

He showed his extreme speed and suddenly appeared behind the old man in black.

The old man in black seemed to have eyes on his back. Without thinking, he swept the demon sword in his hand behind him and struck Gu Fei in the middle.

The moment he saw Gu Fei was about to be struck by the sword of the old man in black, Gu Fei disappeared from the spot again.

"..."

The old man in black was angry.

"If you have the guts, come out and fight openly."

The old man in black roared.

"Haha, am I not fighting you openly?"

Gu Fei's laughter came from all directions, and the void around the old man in black was actually the afterimage of Gu Fei when he moved at extremely high speed.

Fengxuan and the others in the distance were all staring nervously at the battle.

Because Gu Fei's victory or defeat directly determines their fate.

If Gu Fei loses, they will also be dead.

Even Fengxuan and the other ancient ancestors of the strange demons couldn't tell the difference between Gu Fei's afterimage and his true body.

Not to mention them, even the old man in black couldn't tell the difference.

"That's unreasonable!"

The old man in black was furious, and the next moment, endless sword light erupted from the True Demon Sword in his hand, piercing through the afterimages in the void.

This is an indiscriminate attack.

The old man in black didn't care that the figure was Gu Fei's afterimage or that figure was Gu Fei's true body. Regardless of whether it was the afterimage or his true body, he was completely destroyed.

Wherever the sword light passed, Gu Fei's afterimage in the void disappeared, leaving only his true body.

Gu Fei pointed out, smashing the sword light that penetrated, then took a step forward, appeared above the head of the old man in black, and then stepped on the head of the old man in black.

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Chapter completed!