Boom!

The result of the highly compressed Destructive Breath burst open the fully-formed demon's body.

This fully-formed demon wasn't willing to succumb to those, like Xiao Mu and Zhao Yan, whose power initially was far less than its own. Consequently, it chose suicide on the spot.

Xiao Mu, Zhao Yan, and Wang Tong took action simultaneously, each casting a protective barrier in front of them to block the force of the demon's suicide.

"Such a pity!"

Xiao Mu shook his head.

He had not expected this fully-formed demon to choose suicide; he had still wanted to ask some questions, like where the demon came from and what kind of existence it belonged to.

He had encountered a creature like a demon for the first time, which was fundamentally different from zombies and evil ghosts.

"It is indeed a pity. If we had caught it alive and sold it to some research institute, it could have fetched a good price," Wang Tong joined in, his face filled with regret.

Zhao Yan, however, remained silent, picking up from the ground. After the demon's suicide, some remnants of its corpse had been left behind.

These remnants could also be sold to a research institute when taken back.

"Look, don't pity it. You better come and help."

With a glance at Wang Tong, Xiao Mu gave a bitter smile. He had no choice but to help and, together with Zhao Yan, pick up the remnants of the demon's corpse.

His girlfriend definitely wouldn't let go of any opportunity to make money.

Together, the three quickly picked up the fragments of the demon's corpse and put them in a plastic bag for Xiao Mu to keep.

Immediately after that, Zhao Yan collected some branches from the Demon Tree and gave them to Xiao Mu to store as well.

These branches could also be sold for money if taken back.

If it wasn't for Xiao Mu's constant reminder that the Earth Seal Space was almost full and couldn't contain more, Zhao Yan would probably want to take back all the remaining branches of the Demon Tree.

However, looking at the inaccessible branches of the Demon Tree, she still repeatedly expressed her regret.

After cleaning up, the three continued to walk forward.

The road ahead was treacherous. Even though demons, Demon Trees, and fully-formed demons were all killed, the potent Death Qi was still everywhere, and the bizarre terrain made a person's hair stand on end.

The three continued to move forward.

Crack! Crack!

A few kilometers later, they suddenly heard the uninterrupted sound of thunder from ahead.

How is this possible?

All three were somewhat stunned.

Why were there sounds of thunder inexplicably coming from the front?

After exchanging glances with each other, they continued to move forward.

A few kilometers later, the scene ahead left all three frozen in their tracks.

"How can this be?"

"What is this?"

"Is this an Array?"

In front of them, right in the middle of the road, was a wide and peculiar altar resembling a high platform. It completely blocked the entire road.

The altar was at least a few hundred meters in size.

Over the altar were golden clouds enveloping the area. Golden Thunder continuously fell from the clouds, relentlessly striking the altar.

It was unknown what material the altar was made of, but it was incredibly robust. No matter how the Golden Thunder hammered away at it, there was no change.

Furthermore, there were at least a dozen skeletal remains on the altar.

The whole body of these skeletal remains was charred, clearly killed by the Golden Thunder.

Furthermore, judging from the skeletal structure, these remains belonged to demons, all of them fully-formed demons.

"These demons had wanted to leave this valley, but they got killed by the thunder. Why is there thunder here?" Zhao Yan murmured to herself.

Not just Zhao Yan, Xiao Mu and Wang Tong also found it.

Past the altar was the outside of the valley.

These demon skeletons had evidently intended to pass through the altar to get to the valley's exterior. However, the continuous thunder falling from the sky above the altar had killed them.

"It's the force of the world!" Xiao Mu boldly speculated, "These demons don't belong to this world. As a result of their rash invasion into this world, they suffered its force's rejection."

"This altar, the existence of this thunder, I fear is to keep the demons blocked inside this valley."

"Who orchestrated all this?" A puzzled Zhao Yan wondered why.

Xiao Mu shook his head.

Whoever arranged this may not necessarily be a person. It may just be the rule of this world.

The invasion of demons, being rejected by this world, was killed by the world's force.

"How do we get out?" Wang Tong frowned, raising the most critical issue.

The world's force derived thunder, blocking demons inside this valley, and also blocking Xiao Mu and others who had rashly invaded the Demon Land.

With their strength, they definitely couldn't overcome the Thunder Power that not even the demons could pass through.

"Can we not leave?" Zhao Yan used her detective eyes to scrutinize the altar, looking for some form of mechanism or similar thing. Eventually, however, she found nothing.

This thunder over the altar was not controlled by the mechanism or similar existence but was due to the world's rules being spontaneously generated, and thus, was beyond control.

"Is this the only way?" Xiao Mu murmured to himself.

"Let's go back and look for an alternative exit," Wang Tong suggested.

And so, the three turned around seeking another exit.

The Demon Tree had been destroyed, and the demon was dead. For the time being, except for the special evil Qi that had seeped into the air, there was no significant danger in the valley.

The dispersed evil Qi could be blocked by both the Fire Dragon Vehicle and the Yin Wind Carriage.

However, after circling around the valley, the three had almost overturned the whole valley but hadn't found any other exits other than this one.

A few hours later, the three returned to the Thunder Altar, their faces heavy.

"It seems that this is the only way." Xiao Mu said with a stern face.

Wang Tong, dissatisfied, questioned, "How can we get past this?"

The power of this Golden Thunder was more potent than ordinary thunder - it had killed even fully-formed demons, let alone them.

"Think about it, there might be a way," Zhao Yan contemplated.

Xiao Mu said, "Currently, the only thing I have that can withstand thunder is the Divine Armor Talisman, but how can the power of the Divine Armor Talisman resist such strong thunder?"

"Certainly, we can't resist it directly, but is there a way to avoid the direct resistance?" Zhao Yan asked.

The Golden Thunder's strength was too great; direct resistance was undoubtedly the most foolish choice.

"I have Thunder Symbols. Although their power is far inferior to the Golden Thunder here, since they are both associated with thunder, they may be of some help, but..."

Xiao Mu stopped suddenly as he reached that point.

"But what?" Zhao Yan turned her head to ask, curiously looking at Xiao Mu.

"Give me some time to retreat and see if I can comprehend more advanced uses of the Thunder Symbols," said Xiao Mu.

"Alright!" Zhao Yan agreed immediately.

Subsequently, Xiao Mu walked away and sat down, his back to Zhao Yan and Wang Tong. He quietly took out the "Ten Thousand Talisman Sutra" and chose the Thunder Symbol. Then, he used the Mutation Technique once more to mutate the "Ten Thousand Talisman Sutra".

The consumption of 20 Energy Points resulted in the appearance of the Thunder Transformation Technique in the "Ten Thousand Talisman Sutra" Thunder Symbol section.

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