Walnut used me to boost her sales performance.

The further down you go, the dimmer the light from the Great Sun Palace becomes, until the light is completely blocked.

The underground of Yuanxia Palace is not truly nothingness; it has a bottom.

Jiang Bai saw the water below, which was of unknown depth. The stone he had thrown down sank completely into the water, but because it was so high up, he couldn't hear anything.

The Daiichi Mikoto created an ecological cycle in this space that is very similar to the outside world, with water evaporating from the bottom and forming clouds and mist above.

Perhaps when the Great Sun Palace closes at night and the temperature drops, these clouds will condense into water vapor, causing a light rain in the cave.

Jiang Bai didn't get too close to the water's surface. He saw many dragon lizards swimming in the water, and even more dragon lizards lying leisurely on the rocks exposed above the water, basking in the sun.

These lizards are very accustomed to the dark underground environment and live a very comfortable life.

Jiang Bai didn't disturb them and flew straight up.

What's going on next?

"There's water down there, and quite a few dragon lizards live there. Speaking of which, why are there so many dragon lizards here?"

However, the sounds of dragon lizards are rarely heard in the outside world.

Upon hearing his question, Ah Mao asked in surprise, "You don't know?"

"Know what?" Jiang Bai retorted.

"Before the arrival of Phanes, the primordial being, Teyvat was the world of the Dragon Kings, and these dragon offspring were the oldest inhabitants. After the Dragon Kings were defeated, the dragon offspring were also driven out and could only live in marginal areas like this..."

Jiang Bai suddenly realized that they had been driven here, which explained why there were so many dragon lizards here.

For these dragon lizards, Yuanxia Palace may be their only remaining place to survive.

I wonder if these dragon lizards have intelligence or can communicate...

"I do know about the great battle between the primordial humans and the Dragon King, but I didn't connect it to this much..."

"Speaking of which, where did the Dragon King go after his defeat?"

"Maybe he's dead, I don't know."

The two landed on a nearby island and slowly walked forward.

Jiang Bai was shocked to discover that there were actually Qiuqiu people in this Yuanxia Palace!

Where did the Hilichurls come from?

Were they former residents of this place?

Logically speaking, when Aurobas led his people to evacuate, they should have all left. After all, the underground space is limited, and the living space is even more limited. There couldn't be too many people in the entire Abyss Palace, and the giant serpent could have taken them all away with a single coil of its body.

How could they possibly leave some people here specifically to guard the place?

Or did these Hilichurls come here from the outside world?

Like some of the Canria machines we encountered along the way?

But the question is, how did the Kanreia get in?

Could there be other entrances here? If there were, the Fools wouldn't have kept trying to get in, but were unable to because of the seal.

Or perhaps, through some special passage... such as the abyssal passages used by the abyssal apostles?

As Jiang Bai continued walking, he discovered that there were quite a few of these Kanria machines, of all kinds, most of which were intact but in a dormant state.

Why did Kanria send so many machines to the White Night Kingdom? What are they looking for?

Even now, there is no map of the Abyss Palace in the Coral Palace. The only information about the Coral Jade Branch that we are looking for is a rough location. You can imagine how difficult it is to find that book here, which may have been destroyed.

"These buildings collapsed so badly..."

Ah Mao wanted to go inside a collapsed building to take a look, but he couldn't get in at all.

Over thousands of years, too many buildings have collapsed due to lack of care, and many have become ruins.

After much effort, around sunset, the two finally found a large building that was still in relatively good condition.

This is a library, but after thousands of years, most of the books and scrolls stored inside have been damaged, moldy, and cannot be read.

I finally found a few books that were still readable, but due to the paper sticking together, there wasn't much readable content.

Fortunately, we did obtain some useful information.

Because of the special location of the White Night Kingdom, the flow of the earth's veins here is also extraordinary. When the Great Sun Imperial Carriage closes, some remnants of the past can be seen.

However, not everyone can leave a lasting impression; only those with unwavering faith, strong will, and deep conviction can achieve this.

These afterimages still retain their consciousness from before they were alive, and are able to communicate and interact.

In other words, the book can be found from the afterimages of these remaining images.

But then another problem arises: how do we shut down Daiichi Mikoto?

Ah Mao returned from his walk outside and, seeing Jiang Bai still reading, couldn't help but remind him:

"It's getting late, let's get some rest."

Jiang Bai yawned, closed the badly moldy book in his hand, and took out a handkerchief to wipe his hands.

"In this environment, you really don't feel the passage of time at all..."

The Great Sun Palace is not a real sun; it is merely a light source built in imitation of the sun. It has no brightness variations and can only be turned on or off.

Ah Mao found a toppled, rough stone pillar, blew off the dust that had fallen on it, and then sat down.

"It's already past midnight outside. You should go to sleep; I'll keep watch."

He's a puppet, so it's not a problem if he doesn't sleep.

"Then trouble you."

Jiang Bai didn't stand on ceremony. He conjured a stone coffin, laid out bedding, and lay down inside to sleep.

On a rock not far from the library, a deep abyss appeared silently.

He murmured silently, without attracting anyone's attention.

"The heroes of Haiqi Island have arrived... I thought they would be His Highness's blood relatives, but they're not... Let me think of a way to approach them..."

Chapter 819 is exciting, isn't it?

His figure quickly changed, transforming into an ordinary-looking young man with black-rimmed glasses who looked very knowledgeable.

"It's not a good time to go now. Let's wait a few more hours; that would be more convincing..."

As he spoke, he disappeared.

Just as Ah Mao, who was keeping watch at night, was idly flipping through the books that were already difficult to read, a young man approached with noticeable footsteps.

Ah Mao stopped flipping through the book, his sharp gaze fixed on the doorway, ready to launch an attack at any moment.

In a place like this, there could be no one else but the two of them.

What could be making that sound of footsteps?

The young man cautiously walked in, and his gaze was immediately drawn to the light from above, meeting Ah Mao's eyes.

His eyes lit up, and his expression instantly brightened with joy.

"We've found you!"

Ah Mao's eyes narrowed. It was too unusual for a human to appear in a place like this.

"Who are you? Why are you here?"

"My name is Yuanshang, and I am a researcher who came here to help with the investigation."

"Help? I don't know there's such a person who helps."

Ah Mao can confirm that this person is not a member of the Fools.

His order to the advance team on Haizhi Island was to remain in place and not to act without authorization.

"To be honest, I've been doing historical research on the White Night Kingdom. When I heard that the entrance to the Abyss Palace had opened, I immediately begged the current human goddess priestess to let me in..."

The person who called himself Yuanshang scratched his head, somewhat embarrassed.

"I thought I was too late to run into you guys, but it seems my luck is still pretty good..."

"Where are you a scholar from?"

Yuan Shang originally wanted to say Haiji Island, but if there was such a scholar on Haiji Island, the priestess would definitely inform them in advance so that they could come in together, instead of chasing after them later.

After thinking it over, he decided to go to another place.

"The Sumeru Teaching Academy has been staying on Haiqi Island for the past year."

Ah Mao's lips curled into a cryptic smile.

“The Abyss Palace has not been opened for hundreds of years. Even the Coral Palace has not left many historical records. How much research can you possibly have?”

"The Coral Palace left behind very few records because they didn't value history; to put it bluntly, they were historical nihilists..."

"However, it's hard to say that this historical nihilism wasn't intentional on Orobas's part, with the aim of burying a certain period of history, and that period of history he wanted to bury just happens to be the one that interests me..."

As Yuan Shang spoke, he became somewhat excited, as if he had truly become a researcher.

"That's exactly what those scholars from the Order of the Church would say..." Ah Mao murmured to himself.

Yuan Shang continued, "Moreover, I also felt that Orobas's death was somewhat strange, as if it was deliberately sent to his death... There must be a shocking secret hidden here!"

Five hundred years ago, Kanria sent people here to search for this secret. However, when the calamity occurred, the machines that came here naturally stopped remembering them. They remained on this planet and never returned.

Now that the Abyss Palace has reopened, it's time to rediscover its secrets!

"A shocking secret..."

Ah Mao's curiosity was indeed piqued.

"The predecessors of the Order Academy have conducted special research on the White Night Kingdom and left behind a lot of information. Based on this information and the information from the Coral Palace, I have compiled a lot of information."

Tell me about it.

"That's a long story. I'm exhausted from chasing you all the way here. I haven't even had a chance to drink some water. Let me rest for a bit..."

As he spoke, Yuan Shang plopped down on a nearby rock, not caring how much dust had accumulated on it.

He pulled out a water bag and started gulping down water.

Seeing that Ah Mao was staring at him, Yuan Shang said:

"There are two of you, right? The other one should be resting. I'll talk to you both when you're both here, so I don't have to waste my breath. I'm going to rest for a bit. Could you please protect me for a bit?"

He took out a sleeping bag, found an open space, and lay down inside, just like a human.

Jiang Bai didn't sleep for long. He had something on his mind, so he got up as soon as he had enough sleep.

When we came together, we found there was another person in the library.

"what's the situation?"

Ah Mao briefly explained the situation to him.

"It seems that the White Night Kingdom is not an unknown country after all..."

And so, there are scholars studying Sumeru.

Speaking of which, the scholars of Sumeru really do study everything, and they even know a thing or two about such secrets.

Jiang Bai had no doubts about Yuan Shang's intentions and purpose. With his current strength, it didn't matter what the other party's purpose was, as long as he could be of use.

"Sleeping so soundly!"

Yuan Shang crawled out of his sleeping bag and stretched.

"Hello, my name is Jiang Bai. Would you like some breakfast?"

Jiang Bai handed him a meat pie.

"Thank you, I'm actually quite hungry." Yuan Shang happily accepted it.

"Could you tell us about your knowledge of the White Night Kingdom?"

“No problem.” Yuan Shang said as he ate a meat pie and told them about the past of the White Night Kingdom as he knew it.

"The history of the White Night Kingdom did not begin with the arrival of Orobas; the Great Serpent Orobas is at most the last chapter in the history of the White Night Kingdom."

"Legend has it that the White Night Kingdom didn't actually live underground from the beginning, but rather sank from the surface to this underground..."