According to the information Cui Fu had investigated.
The Astral Disk was likely lost within an ancient battlefield.
In the Dragon God Kingdom, there were indeed quite a few ancient battlefields, but their locations were all rather remote and dangerous, with few people daring to approach them.
The ancient battlefield they were going to this time was hidden deep underground. It once belonged to a demon sect that was very powerful and extremely wicked.
Good and evil had been irreconcilable since ancient times.
During the era when sects flourished, righteous factions, in order to gain favor, formed an alliance and set out to destroy this demon sect hidden underground. The Law Sect had participated in this campaign.
The battle at that time was incredibly fierce. When the demon sect was annihilated and the fighting concluded, the battlefield became an ancient battlefield.
Countless incomplete yet extremely potent formations and restrictions were scattered everywhere.
The reason for believing the Astral Disk was lost there was because of the unique role the Law Sect played in this conflict.
The demon sect had laid numerous extremely powerful offensive formations. Array restrictions formed the foundation of these formations, and the Law Sect, being a sect that specialized in array restrictions, was invited to break through the obstructing formations to minimize casualties.
However, after that battle, only one elder from the Law Sect returned, severely wounded. Upon his return, he remained in a coma and died not long after.
It was also only a few years after that incident that the Law Sect discovered the loss of their supreme treasure, the Astral Disk.
In earlier years, many people would venture there to search for treasures, but for every ten who entered, having even one return alive was considered an immense stroke of luck.
To prevent further losses, certain factions concealed the entrance.
Nowadays, very few people are aware of this ancient battlefield, essentially only elders like Cui Fu or the Second Elder of the Mu Nan Sect.
For the sake of the sect's supreme treasure, Cui Fu had long wanted to enter the underground ancient battlefield to search for it.
However, with his weakened strength and the extreme danger of the ancient battlefield, having children, he did not dare to take the risk.
With Chu Fan's joining this time, Cui Fu felt considerably more confident.
The two wasted no time, and after three days, they neared the location of the underground ancient battlefield's entrance.
Just as Cui Fu was discerning the direction and preparing to find the hidden entrance, Chu Fan suddenly grabbed his shoulder and pulled him to leap onto a large tree beside them.
"Li...!"
"Someone's here!"
Cui Fu was about to ask what was wrong when Chu Fan's warning came out.
Someone was here?
Cui Fu's heart tightened. He then carefully sensed his surroundings, his slightly graying eyebrows furrowing. He thought he hadn't sensed anyone.
After waiting silently for a minute, the sound of breaking air began to be heard, and soon two men appeared nearby.
"There's no one here. Could the sensing system be mistaken?"
"It could also be wild beasts. Since we're here, let's just do a quick sweep to avoid being blamed when we return!"
The two began to move around the area. After finding nothing after a circuit, they turned back.
"That's strange. This place has been abandoned for decades, how could there be anyone here?"
Cui Fu murmured in confusion.
"Abandoned doesn't mean no one ever comes here. You haven't been here in years, have you?"
Cui Fu thought about it and felt it made sense.
This place was located deep within the Ten Thousand Mountains. Ordinary people would never come to this area.
However, factions with strength could reach this location.
To figure out exactly what was happening, the two began to leap through the trees. Chu Fan had discovered that there were warning devices on the ground, and it was precisely by triggering the warning devices they had planted in the vegetation that they had been detected.
There were quite a few of them deployed around, but in the eyes of the Demon God, these were all child's play, easily avoided.
Upon reaching the vicinity of the entrance and seeing the scene before him, Cui Fu was astonished.
The entrance, which had once been hidden, had been opened at some unknown time. From the surrounding construction, it was evident that whoever occupied this place had been here for quite some time.
"The faction occupying this place is likely not a sectarian force, but more like an external organization!"
Chu Fan voiced his analysis.
The reason for this conclusion was that the guards stationed around were all carrying modern weapons. Apart from having stronger physical conditioning, they were not people who practiced martial arts.
"That's likely it!"
"But, this is clearly an ancient battlefield. What would an external organization want with this place?"
Cui Fu was very confused.
According to his expectations, there should not be any personnel activity in this place.
However, he didn't ponder it too much.
The personnel of external organizations had limited strength. When facing a Master or above, they were like children fighting adults.
If they wanted to enter, they could simply force their way in. Cui Fu was confident that the dozens of people before them wouldn't be able to stop him.
"No rush!"
"You wait here!"
After saying this, Chu Fan disappeared from his spot with a gust of wind.
His powerful sensory abilities had already detected the presence of strong martial artists within the entrance.
Moreover, ever since approaching this place, Chu Fan had a bad feeling in his heart, which was why he hadn't immediately taken Cui Fu to force their way in.
Chu Fan never ignored his intuition.
The bad feeling made even this Demon God prepare to proceed cautiously.
Not long after, the sentries at the entrance immediately cried out.
"Quick, it's on fire!"
"Go and extinguish it quickly!"
"Send more people to put out the fire as soon as possible, otherwise, the warning system will be damaged!"
The raging inferno immediately drew away more than half of the guards at the entrance, leaving only four remaining to stand watch.
"Go!"
Chu Fan, like a phantom, appeared silently beside Cui Fu, grabbed his arm, and brought him directly towards the entrance of the underground ancient battlefield.
At this moment, Cui Fu truly felt what speed was.
Because the fire had attracted their attention, the two entered the entrance silently without alerting the guards.
While the outer defenses were tight, the internal security was naturally more lax.
"They... they've turned this place into a stronghold?"
Upon entering the cave and seeing that both the walls and the paths had undergone some construction, Cui Fu suddenly realized that the organization that had come here was not searching for items within the ancient battlefield, but rather intended to establish this place as a stronghold.
"This organization is called the Underworld Palace!"
Chu Fan suddenly spoke, his gaze fixed on a pattern on the wall that exuded an oppressive aura.
The reason he knew it was the Underworld Palace upon seeing the pattern was naturally because when he had learned about the individual named Underworld, Chu Fan had conducted a series of investigations.
While the gains were not substantial, they were not entirely absent.
The organization behind the Underworld was called the Underworld Palace. Similar to the Eternal Hall, it was also a very large underground organization.
And at the time, the faction that had attacked his mother, attempting to find the Dragon-shaped Jade Token, included the Underworld Palace.
"The Underworld Palace?"
"I've never heard of such an organization!"
Cui Fu recalled carefully, but he couldn't remember ever hearing of it.
"This organization is very well hidden, and it includes many powerful individuals. This place appears to be one of their strongholds, not their headquarters!"
Chu Fan voiced his analysis and walked deeper, curiosity and anticipation surging in the depths of his eyes.
He hadn't investigated the Underworld Palace himself, but that didn't mean he hadn't had others investigate.
The results had been negligible.
Therefore, Chu Fan was very surprised to find a stronghold of the Underworld Palace here, but he was also very expectant. Knowing this should allow him to understand the specific situation of the Underworld Palace. Even if he couldn't find the Astral Disk, it wouldn't be a wasted trip.