Because he didn't know what state Amon was in, Klein didn't dare to delay. After his mental problems were initially resolved, he immediately came to Calderon to get water from the "River of Eternal Darkness".

And because this involves the source material, he can only divine and predict to a certain extent. He can see some vague images and cannot make accurate judgments.

After looking around, Klein raised his hand and summoned the historical pore image of himself from a few minutes ago, allowing his main body to return to the "Source Castle".

His consciousness then transferred to the projection, giving it a physical presence.

Then, Klein reached into the void again and pulled out the historical projection of the "Star Staff".

Frankly speaking, after being able to use most of the Beyonder abilities below Sequence 0 of the Apprentice pathway through Sefirah Castle, Klein actually no longer needed the Star Staff, a Level 0 Sealed Item. He could basically reproduce the magic of the latter, and it had almost no negative effects.

However, he always believed that an angel still had to have a melee weapon, because he never knew when he would fall into the predicament of his active supernatural powers failing.

In the mysterious world, this is definitely something that could happen. Regardless of the restrictions of the rules of the "Arbitrator" path, or the certain degree of supernatural failure brought about by a certain outer god, it is possible to achieve a similar effect.

In this case, picking up a hard cane with some passive effects and directly smashing the enemy's head is an effective method.

As an Angel King of the "Fortune Teller" path, it is instinctive to be prepared in all aspects!

After weighing the Star Staff and adjusting his hat, Klein took out the bird-shaped gold ornament from Sefirah Castle and pinned it to his left chest pocket.

Then, he took a step forward and entered the city of Calderon, which was once the kingdom of the ancient god of death, the Phoenix Ancestor Graygari.

The first thing that caught his eye was a huge deep pit with no visible bottom. All kinds of strange-shaped buildings surrounded the deep pit, extending downward in circles, forming a magnificent city beyond the ordinary people's cognition.

Some of those buildings were single houses standing on top of pale stone pillars, some were long, rectangular coffins with no windows and doors on the roof, some were directly graves with stone tablets at the entrances, and some were built from various bones, looking quite messy...

The closer to the bottom of the pit, the more intact the buildings are; the closer to the top, the more they have collapsed, filled with decay and ruin caused by the erosion of time.

Klein only took a glance, and a faint gray mist appeared around him. He directly relied on the status of "Source Castle" to resist Calderon's rule of transforming all living beings into the dead.

Becoming a dead person did not have a very negative impact on him, but he himself did not like that cold and indifferent feeling.

"The 'gray flood' that rose earlier has all receded..." Klein, who was wearing a top hat, a windbreaker, and a cane, nodded thoughtfully and took a step into the depths of Calderon that could be seen by the naked eye.

This time he used the extraordinary ability of the "Thief" path to directly steal the distance within the perception range, so as to avoid entanglement with the various dangerous monsters active in this mysterious city.

It's not that he was afraid, but the monsters he should be afraid of. If he didn't want to waste time, he wouldn't mind taking the opportunity to collect a batch of secret dolls to make up for the losses caused by the destruction of "Utopia".

In addition to this reason, Klein was also cautious about another point:

Calderon is a city of the dead. The "River of Eternal Darkness" is likely to flow in the deepest part of the ground. The puppets are essentially dead, and once they get close to the underground, they may mutate.

As he went deeper step by step, Klein realized that he was overthinking:

None of the various monsters hiding in this strange city dared to show up. The aura of "Source Castle" made their instinct for survival overcome their crazy tendencies and predatory habits.

The deeper he went underground, the quieter Klein's surroundings became. Those strange buildings were clearly well-preserved, but they seemed to have been dead for many years. Even the aura had become cold, dark, and decayed.

It felt like watching a black-and-white silent movie. If I couldn't hear my own "breathing" and "heartbeat", I would have suspected that I was deaf... Klein coughed lightly and used his inner mumbling to fight against the silence of death.

He intuitively believed that once he adapted to this environment and his body and mind became silent, he would truly and irreversibly die bit by bit.

The closer you get to the ground, the stronger this feeling becomes.

Klein continued to gain distance after walking for a long time, and finally saw the bottom of the deep pit.

No, this is not the real bottom, there is just a huge, dark palace blocking the way down.

The palace was supported by huge pillars and was inlaid with various bones and different parts of corpses. Some places were even covered with bloody skins of different races.

Klein stared for a few seconds, then without hesitation, he carried the Star Staff, passed through the open door, and entered the palace.

On both sides of the hall, there are coffins of different shapes and colors. They are placed there quietly, as if even existence itself has been weathered by death.

As Klein entered, some noises suddenly came from inside the coffins, as if rusty joints were opening one by one.

The gray mist around Klein became thicker, and all the coffins suddenly became quiet.

Ignoring these things, Klein walked to the depths of the hall. There was a gray-white stone staircase leading downward, and a huge stone tablet stood at the entrance.

On top of the stele stood a slender statue of a giant bird that seemed to be made of bronze, with various pale symbols on its wings.

Under the bird-shaped bronze statue, on the surface of the stone tablet, the words from the "language of the dead" are like very simplified birds of different shapes or snakes coiled in different shapes, forming two ambiguous sentences:

“Even the gods cannot escape;

"Even if you die, you will be detained."

Is this a warning to all creatures who come to Calderon not to go down this staircase? It leads directly to the "River of Eternal Darkness"? Klein's thoughts turned, and he carefully interpreted the words on the stone tablet.

In his opinion, this seemed to indicate that even a true God of Sequence 0 would sink into the "River of Eternal Darkness" and be unable to escape. Even death itself would be imprisoned by this abstract river of source essence. Although it would never disappear, it would never be able to escape.

It seems that, just like the "Chaos Sea", without the protection of the source, even if you just approach the "River of Eternal Darkness", terrible changes will occur... Klein retracted his gaze, adjusted the bird-shaped gold ornament on his chest pocket, walked around the stone tablet with a bronze statue on top, and walked down the gray stairs step by step.

He stopped stealing distance to avoid running directly into danger.

In the dark, silent and cold environment, the bird-shaped gold ornament on Klein's chest emitted a pale glow, illuminating a very small area, like a small boat of life struggling to survive in the tide of death.

After descending for an unknown amount of time, the aura of the Source Castle around him expanded reflexively and became extremely dense, like a grayish-white cocoon.

At the same time, Klein tilted his head slightly and heard a slight, illusory rustling sound.

This seems to indicate that deep underground, not far from the current location, there is an underground river flowing slowly.

The next second, Klein lowered his head and looked at his feet.

At some point in time, a dark, unreal stream of water suddenly appeared there.

Even light cannot exist on its surface.

“This is different from what I saw last time…” Klein frowned slightly.

When he went to Calderon to hunt the "Spirit World Predators" before, it caused certain changes, causing a large amount of gray-white illusory tide to surge up from the bottom of the deep pit.

The colors were completely different the two times I saw them.

Just as Klein's thoughts raced, at the bottom of the stone stairs, where the dark tide surged, a thin gray-white mist spread upwards and combined with the illusory water, expanding into gray-white "light" water that was more like mist.

After the water flowed to Klein's feet, it quietly retreated, as if it was rising and falling periodically.

This thin gray mist seems familiar... Klein's expression suddenly became solemn.

After pausing for a few seconds, he continued to descend.

This time, the rising tide of illusion overwhelmed him, made his body light, made his emotions quickly turn cold, and made his thoughts gradually fade away.

If it weren't for the protection of the "Source Castle" aura around him, Klein suspected that he would passively and irresistibly merge into this tide.

Next, the grayish-white "cocoon" rose and fell in the water flow, and as the tide receded, it slowly reached the end of the stairs.

Beyond the end is nothingness, and in the nothingness flows a straight, wide, illusory, colorless and dark river.

The river was so blurry and difficult to see clearly because it was surrounded by a grayish-white, thin mist that acted like a barrier.

“Sure enough…” Klein couldn’t help but whisper upon seeing this.

He was not unfamiliar with this kind of fog. He had seen it behind the door in the Bansi ruins, at the easternmost part of the God-Forsaken Land, and under the "Source Castle"!

Unlike other places, part of the water in the "River of Eternal Darkness" penetrated the gray fog and merged with the latter to a certain extent, sometimes dark and sometimes pale.

This part of the river water kept rolling up and falling down, like a tributary rushing in the darkness.

On both sides of the tributary, there are huge and pale stone pillars standing one after another, as if they are supporting something to prevent the other from collapsing.

At this time, between these stone pillars and on the edges of the tributaries, countless slightly blurry and translucent figures were walking back and forth, wandering, slowly but without stopping.

Among them, the most eye-catching is a confused figure that sometimes walks into the depths of the tributary, sometimes turns back, but can never escape from the river.

It was so huge, almost the same size as the surrounding stone pillars. It was covered in a dark black robe and its sides looked old.

Suddenly, it turned its head and looked at Klein.

Its face had obvious southern continental features, but it had decayed into patches, and had grown white feathers stained with pale yellow oil.

Klein knew him. He was Mr. Azik's father, the "God of Death" from the Fourth Epoch:

"Emperor of the Underworld" Salinger.