"Since it's an empty hall, should we go in and take a look?" Baili Pangpang looked into the hall with some curiosity.

"I'm afraid we'll have to go in."

An Qingyu moved the red door in his hand away and said with a frown, "This door seems to be locked from the outside and cannot be opened from the inside."

"Can't open it?"

Li Deyang glanced at the frail An Qingyu, and walked to the door with some disbelief. He tugged at the door a few times, but found that it was indeed motionless. He couldn't help but ask in confusion: "It shouldn't be like this. It was quite easy when I pushed the door just now."

Cao Yuan sighed and slowly swept the flashlight across the hall. "If we can't open the door, let's go in and look for another way out."

The four of them took a step forward, observing their surroundings vigilantly, and began to move towards the hall little by little.

The front of the hall was empty except for a few thick pillars. It was not until you entered the center of the hall that a giant throne with gilded carvings appeared.

This throne is at least thirty meters high, and with the carved backrest at the back, the overall height is almost seventy meters. If the roof of this hall was not high enough, this chair alone would probably pierce through the roof.

Baili Pangpang used the beam of his flashlight to slowly examine the giant throne in front of him, and could not help but speak:

"Isn't this chair too big?"

"This is the chair of the ghosts and gods who guard this heavenly palace. It is normal for ghosts and gods to be large in size. I guess the chair of the King of Fengdu is bigger than this one." Cao Yuan explained.

He turned around and saw An Qingyu with his head down, as if he was thinking about something.

"What are you thinking about?" Cao Yuan walked to his side.

An Qingyu pushed his glasses and asked, "Do you remember the blue-gray wall we saw when we came in?"

"Yes."

"There is one thing I don't quite understand." An Qingyu thought and said, "If this is the legendary Fengdu, then why is there a wall built by the Han Dynasty outside Fengdu?"

When Cao Yuan heard this, he couldn't help but stand there in a daze.

"Fengdu must have existed longer than the Han Dynasty. Since they built a wall outside, it means that someone in the Han Dynasty must have discovered the existence of Fengdu. At that time, building such a large wall underground would have consumed a lot of manpower and materials. The most important thing is that such a large project did not leave any traces in history books..."

An Qingyu shook his head. "I don't understand why they would do this."

Cao Yuan pondered for a moment, "Could it be that a certain emperor, in pursuit of eternal life, reached some kind of contract with Fengdu?"

"It's possible, but if so, why build a wall?" An Qingyu asked in confusion, "If the emperor wanted to live forever, shouldn't he have offered some tribute? Building a wall there is like... afraid that something will escape from Fengdu."

"Run out..." Cao Yuan pondered for a moment, "Could it be some kind of mystery? No, that's not right. The mystery should have appeared after the fog fell a hundred years ago. The time doesn't match."

An Qingyu raised his eyebrows when he heard this, "Why do you think there is no mystery before the fog falls?"

"If there had been a mysterious appearance before the fog fell, without the Night Watchmen, Da Xia would have been in chaos long ago." Cao Yuan said as a matter of course.

An Qingyu looked at him meaningfully, "But before the fog descended... we had God."

Cao Yuan was stunned in his place, with shock in his eyes, "You mean, the mystery may have existed before the fog fell, and the reason why Daxia did not fall into chaos is because there are gods protecting it in secret?"

An Qingyu nodded, "This is just my personal guess. After all, there is no evidence to show that there was a mysterious existence before the fog descended."

Cao Yuan looked at the huge chair and sighed.

"Anyway, that wall is indeed a bit strange... But first of all, let's find a way to leave."

The four of them walked around the seats and followed the side aisle directly to the main hall, which was a more spacious space. However, compared to the front hall, there were more furnishings here.

A bed, a table, and a black bookshelf filled with files, and even some burnt-out incense in the corner.

"Is this the bedroom?" Baili Pangpang asked suspiciously.

"...This is called the sleeping palace." Cao Yuan rolled his eyes. "If I'm not mistaken, this should be the sleeping palace of the ghosts and gods guarding this heavenly palace."

"Does God need to sleep too?"

"…"

Cao Yuan simply ignored Baili Pangpang's question, walked forward silently and started observing with a flashlight.

Although these furnishings look ordinary, this is from the perspective of gods. In the eyes of Cao Yuan and others, these pieces of furniture are huge monsters, especially the bed, which is almost as big as two football fields. It is unknown how long it will take to search this room.

Baili Pangpang was still thinking seriously about whether the gods should sleep, while An Qingyu had already walked to the bookshelf.

Suddenly, his eyes stopped on a file.

Several silk threads shot out from his palms, grabbed the edge of the file, and with a strong pull, he took it down from the upper shelf.

"What is this?" Li Deyang walked over puzzled.

An Qingyu spread the file on the ground, quickly scanned the words on it, and was slightly stunned.

He looked up at Cao Yuan who was also walking over, and spoke slowly:

"I think I understand where that wall came from..."

…

While dodging the paper soldiers along the way, Lin Qiye quickly moved towards the direction where the sound came from.

Fortunately, Baili Pangpang and others had already led away most of the paper people, so the journey was relatively smooth. Except for the cold wind blowing around, there was nothing unusual.

Although Lin Qiye couldn't see them, after communicating with the owner of the house just now, he could guess that the cold wind that blew from time to time was actually some ghosts that he couldn't see.

Soon, he saw the collapsed house of Baili Pangpang. This was also the direction where the sound came from, but now the place was empty.

"Which direction did they go?" Lin Qiye frowned slightly and looked at the route he had taken. His eyes followed the road under his feet and extended to the distance...

There, black palaces stand tall.

Is it a palace left behind by ghosts and gods?

Lin Qiye hesitated for just a moment and then walked towards the standing palaces. Judging from the route, Baili Pangpang and others must have entered one of the palaces.

,