963 is silent. In the ancient peak era, the Heavenly Emperor was alive and experts gathered, but in the end, he still failed. In comparison, in the current myriad realms, let alone Immortal Emperors, there are no Quasi-Immortal Emperors, and the number of Immortal Kings is far inferior. Judging from the current situation, there is almost no hope to be seen!

Throughout history, in the wars against strange races, many Immortal Emperors and Quasi-Immortal Emperors have died. Only those at the Immortal King level are qualified to participate in the war, while True Immortals... frankly speaking, are practically cannon fodder!

Therefore, the two counterattacks during the Chaotic Ancient and Desolate Ancient periods were basically not led by True Immortals or Heavenly Emperors, but by a group of supreme powerhouses from all the heavens, and even Immortal Kings were very few!

"In any case, the Alliance of Myriad Realms still has a certain possibility of fighting against the strange races, right?" Tai Yi sighed. Having experienced a great catastrophe, he always felt uneasy whenever he thought about it. Even if he reached the Universe Realm, he had absolutely no confidence that he could kill the Dark Cultivator!

The group remained silent, their hearts heavy. Compared to the eeriness and darkness, the invasion of the Great Underworld was nothing of great importance.

"Huh?" Suddenly, Jiu Liu San exclaimed in surprise, his eyes flashing with divine light as he stared at the interlayered area outside the Yang Realm, where Yin Qi also swirled, manifesting the chains of the Great Dao.

Nine Six Three's expression shifted repeatedly. Finally, he slapped out and shouted, "You brat, you dodged pretty well!"

Just as everyone was puzzled by Jiu Liu San's actions, a dark light suddenly descended from outside the boundary and appeared in Yin Zhou. The figure within the dark light was all too familiar to everyone, whether in terms of physique, appearance, or magical energy!

"It's you, Li Da! You scoundrel, you're still alive?" Tai Yiyi glared.

Li Da rolled his eyes and said, "What kind of talk is that? You're so much weaker than me, yet you're still alive. How could I possibly die?"

"..." Taiyi was speechless. Damn it, it really was this guy. His words were enough to make people want to vomit blood.

“Li Da, you’re not…” A group of people were surprised. Li Da’s disappearance was thought to have violated a taboo, leading to his sudden death. But now it seems that he is alive and well, without any problems.

"Alas, in my youth I was reckless and foolish. I pulled off a heist on the Four Extremes Floating Soil and obtained a rare artifact. Who would have thought that I would attract disaster and be plagued by misfortune? I had to fake my death to escape, and it took me so many years to barely recover."

Li Da sighed, then made a fierce vow: once he breaks through to become a king, he will definitely do another big job in the Four Extremes Floating Earth and make them spit out a lot of good stuff!

Everyone turned their heads. The Four Extremes Floating Land, in ancient historical records, is listed alongside other strange regions such as the Soul River, the Heavenly Emperor's Burial Pit, and the Ancient Underworld. All of these are territories operated by strange races in the outside world, and there are many powerful individuals among them!

Li Da is as audacious as ever, daring to even attack the Four Extremes Floating Soil!

At this moment, after observing the interlayered area outside the mortal realm, Jiu Liu San stroked his chin and pondered, "Are you using the Great Dao rules of the Yin and Yang realms to nourish yourself? While healing your injuries, are you also comprehending the laws of the Great World in order to seek the path to Immortal King?"

Li Da gave a thumbs up. His schemes were beyond the comprehension of the various immortals, but they could not escape the discerning eyes of his master!

"Damn, what incredible luck!" Everyone was filled with envy and jealousy. Such an opportunity would undoubtedly be of great help in breaking through to the King Realm!

The worst of those who can appear here are Da Yu and Yu Jiu, which are both early and mid-stage True Immortals. There are also quite a few Yu Jiu Realm experts who are at the peak of True Immortal. For these kinds of experts, breaking through to become a King is their greatest obsession!

"You're just ignoring the danger I encountered, huh?" Li Da complained. Did they really think the things in the Four Extremes Floating Earth were so easy to control? They were extremely dangerous!

If he hadn't faked his death in time through skillful means, severing the causal connection and thus avoiding the subsequent calamity, he would probably have really perished in prehistoric times, becoming a corpse beneath the floating earth of the four poles, his flesh, blood, and soul power nourishing the dark creatures!

The crowd chuckled, saying that you were alright, which made them underestimate the danger of the dark artifact.

"Enough of this nonsense!" Li Da said seriously, "I occasionally awaken, hide outside the realm, and observe in secret, and I've discovered many secrets of the mortal world..."

At this point, Li Da suddenly noticed the unnatural expressions on the faces of the group of cultivators in front of him.

Li Da was speechless and said irritably, "Who cares about your petty squabbles!"

"Isn't this your specialty? Spying, bludgeoning, you're incredibly skilled at it!" muttered one of the repairmen.

"Don't interrupt! I'm talking about serious matters!" Li Da glared at the man. These were all old, trivial matters; why bring them up again?

"In many places in the mortal realm, immortal kings slumber, or there are forbidden artifacts from prehistoric times. Unless there is an exceptional opportunity, I dare not explore them easily. I can only hide here and take a few glances from afar."

Li Da said in a deep voice, "However, I have also discovered the secrets of some sects and sects."

"For example... the Soul Light Cave is a dark spy, infiltrating the mortal realm, and it's very likely that they have close ties in secret!"

A cold glint filled Jiu Liu San's eyes as he said, "Then let's go take a look at the Soul Light Cave!"

After speaking, the group flew out of Yinzhou. There were no great secrets here. The Great Yin Universe, which was to be completely connected to the Yang Realm, was not something that could happen in a short time. They still had to wait.

Soul Light Cave was a major sect in the mortal realm, renowned throughout the land. It was the local ruler, with a large number of disciples and a very powerful presence. However, it only became much more restrained after its master, Cao Ya, was killed a few days ago.

However, apart from the current master of the Soul Light Cave, the ancestor who opened this cave is still alive and is also a master of the Universe Realm, who is also an undercover agent of the Soul River.

When a large group of powerful figures drove out of Yinzhou and headed towards Soul Light Cave, the ancestor of Soul Light Cave sensed something was wrong and hurriedly tried to escape, but was stopped by Jiu Liu San from afar. Jiu Liu San raised his hand and created a Yin-Yang diagram to seal off space and time!

Knowing he was doomed, the patriarch of the Soul Light Cave stopped struggling, straightened his back, looked at the approaching powerful figures with a contemptuous expression, and said: Before the Soul River, you are all just ants!

"The souls of all the heavens have fallen, but the river endures forever!"

After a roar of mourning, the ancestor of Soul Light Cave self-destructed. His mark remained in the Soul River, but he was not truly dead.

"Troublesome." Jiu Liu San frowned, surveyed the mountains and rivers below, and directly announced the destruction of the Soul Light Cave. With the power of a King Realm expert, he identified the spies and undercover agents below the Immortal Path through close contact and eliminated them.

The undercover agent from the True Immortal Realm is strong enough and well hidden. In the past, he rarely walked in the mortal world and did not merge with other clones to break through to the King Realm. His power is not as great as it is now, but it is difficult to find their background. However, in the Human Realm, for him who is now comparable to the Immortal King, as long as he gets close, his divine sense can see through them and none of them can escape!

Of course, the other evolved beings only thought that Soul Light Cave was a major sect in the mortal world and became its disciples, completely unaware of the inside story. However, Jiu Liu San did not indiscriminately kill the innocent and let them leave.

Those evolved beings were terrified, and only breathed a sigh of relief when they finally left the Soul Light Cave.

They turned back and looked again at the ethereal gate of Soul Light Cave, filled with countless emotions.

Who would have thought that such a famous scenic spot was actually a powerful force established by a dark spy?

Inside the Soul Light Cave, Jiu Liu San, Li Da, Tai Yi, the master of the Black Blood Research Institute, and others found a hidden door. Jiu Liu San used his King Realm supernatural powers to break the seal and open the door!

"Buzzing..." A unique fluctuation seemed to spread out of the mortal realm, traversing time and space, constructing a passage that actually connected to an ancient and desolate river—the River of Souls!

The River of Souls is located in a special region of the heavens. Its source and end are unknown. It flows slowly and eternally, as if it will continue until the end of time and the end of the universe!

However, in the eyes of the crowd, this infamous River of Souls, once stained with the blood of the Heavenly Emperor and shrouded in boundless mist, was empty and desolate, devoid of any living beings. The river flowed silently, without any ripples or waves, like a desolate wasteland of death.

Heaven and earth were silent, the river of souls was still!

"This is the River of Souls? How come there's no danger? It doesn't match the records in ancient history!" Taiyi was surprised. No matter what ancient book it was, whenever the River of Souls was mentioned, it was always accompanied by words like "extremely ominous," "unlucky," and "dark." But now, upon observation, there was no danger at all.

"A stagnant pool." Li Da curled his lips. Compared to the Four Extremes Floating Soil he had encountered before, the Soul River was undoubtedly more mysterious, but its actual performance was not as good.

"Don't be careless. The point of the bizarre world's destruction has not yet arrived. The development of the civilizations of the heavens has not yet reached its peak. The bizarre is still waiting and unwilling to reap the harvest prematurely. That's why this River of Souls has not shown any unusual phenomena. But we cannot underestimate the River of Souls because of this." Jiu Liu San said solemnly. With the keen senses of a Celestial King, he sensed a deadly threat deep within that great river!

Inside the cave, the assembled heroes were solemn and their expressions were grim. Anyone who knew they were lambs to the slaughter would not be in a good mood.

"Should we go straight in, or... reseal this place?" Taiyi asked.

"Of course we have to go in!" Li Da raised an eyebrow, glanced at Tai Yi, and said with a faint smile, "What, are you scared?"

"Even the Heavenly Emperor has shed blood in this perilous place. How can we, who are we to begin with, not be afraid?"

Taiyi nodded in agreement, saying worriedly, "If we force our way in, I'm afraid we'll alert the monsters in the River of Souls and awaken them. At that time, a bunch of powerful cultivators from the Dark Realm will emerge, and with just our numbers... we won't even be enough to fill their teeth! If a few large monsters jump out, even if we're 963..."

Taiyi hesitated considerably. Every appearance of the Soul River was accompanied by bloodshed and the fall of countless immortal masters.

Now that the River of Souls is still dormant, there is no need to provoke them. Their strength is far from sufficient!

Unless the mortal realm is unified, the war of hegemons ends, and a new Heavenly Emperor emerges who can integrate the power of the entire mortal realm and unleash astonishing combat power, then it's worth a try!

The attitudes of the group were quite different. Some agreed with Li Da and wanted to venture into the Soul River to test the strange level. If they could capture some monsters and dissect them on the experimental table, they might have unexpected gains. Obviously, the representative of this group was the master of the Black Blood Research Institute!

"Anyway, the Soul River hasn't reached its active period yet. If we're careful, and with 963 backing us up, we shouldn't collapse at the first touch and be wiped out, right?" said the master of the Black Blood Research Institute, his eyes burning as he stared intently at the great river.

Of course, for every person who agrees, there is someone who disagrees. Another group of cultivators felt that Taiyi's words made a lot of sense. In the face of the ancient and mysterious River of Souls, we must not be arrogant and must be extremely cautious. We should wait until a new Heavenly Emperor appears in the mortal realm before making any decisions.

However, after much debate, everyone finally looked to 963. He was the strongest person present and a subordinate of the Heavenly Emperor, so he knew more secrets. Listening to him was definitely the right thing to do!

After pondering for a moment, Jiu Liu San understood the concerns of both sides. However, considering the situation in the mortal realm and the development of civilizations in all realms, he realized that the strange races would not awaken on a large scale. Instead, a number of beings would remain hidden outside the realms, observing the heavens and recording relevant information.

"With this background, relying on us, we do indeed have the possibility of breaking into the depths of the Soul River and annihilating the strange cultivators! Since there is a time difference, we must catch the Soul River off guard!" 963 whispered.

Li Da, the owner of the Black Blood Research Institute, and others couldn't help but smile as they looked at the other group of people.

Taiyi was undergoing major repairs and was somewhat frustrated, but he also changed his mindset and rekindled his fighting spirit.

Those who can reach the True Immortal Realm are not weak. Despite their many concerns, everyone has made up their minds and is equally determined, suppressing any thoughts of retreat and preparing for a great battle!

Furthermore, they are also curious about the River of Souls. If they can seize the opportunity to launch a surprise attack on the River of Souls, thereby weakening its power, it would undoubtedly make the mortal realm safer.

"But there's no need to rush. The mortal realm has existed for billions of years, and there are many capable people. We still need to find some more experts!" Jiu Liu San smiled. At least, the old friends of the Three Ancient Emperors, upon hearing this news, would surely be enraged, their killing intent surging, wanting to rush into the Soul River together! This is powerful reinforcement!

"Besides, Cao Ya definitely won't back down," 963 muttered to himself.

Afterwards, the group dispersed to find their old friends, with only Li Da remaining to guard the Soul Light Cave in case of any unexpected changes.

According to everyone, since Li Da has been faking his death for countless years, his relatives and friends have long been used to it. Whether he appears or not, it's all the same. It's better to stay and avoid outsiders from interfering or the Soul River from changing and launching a counterattack on the mortal world. It can also notify everyone in advance so that they can be prepared.

"Disciple, stay here and keep an eye on the Soul River. If there are any unusual movements, notify us immediately!" Jiu Liu San said. He felt at ease with Li Da staying behind. He was afraid that other Yu Jiu would be corrupted by the Soul River and fall into depravity.

Li Da's strength is unmatched in the Yu Jiu Realm. Although he cannot compare to Cao Ya, he is still very powerful and rarely seen throughout history!

"Go, all of you." Li Da waved his hand, gazing thoughtfully at the River of Souls.

"Within the River of Souls, I wonder if I can find something to revive..." Li Da murmured to himself, thinking of his old friends and confidantes, and couldn't help but sigh softly.

After everyone left, the news was relayed to many powerful forces, such as the Heng Clan, Buddhist Clan, Daoist Clan, Ji Clan, Li Clan, Zhou Clan, and Ya Xian Clan, as well as the Six-Eared Macaque Clan, Peng Clan, the Great Clan of the Strange Wilderness, and large sects in the Yang Realm. The vast majority of True Immortals received the news, and quite a few were tempted!

The True Immortal Realm transcends the realm of humanity and enters the great realm of immortality, yet it is extremely fierce and possesses its own arrogance.

No matter how ferocious the River of Souls was, they figured that with only a few dozen people, they might not have the power to venture into the deepest part of the river and harvest its strange resources, such as rare and precious materials and divine skills.

However, if a large number of experts from the mortal realm were to mobilize, including over a hundred true immortals, such a group would have a high chance of accomplishing such an astonishing feat!

Of course, there are many who are unwilling to go together, still harboring a deep fear of the River of Souls!

But that doesn't matter. The world of the living must be controlled by someone. Places like the Four Tribulations Sparrow, the Silent Extinction Ridge, the Star Feather Heaven, and the Chaos Abyss must also be guarded against to prevent major changes in the world of the living!

"Force your way into the River of Souls?"

When 963 found him, Cao Ya was in a dangerous place in the mortal world, collecting divine fire and heavenly thunder to refine a secret treasure. Upon hearing this, he only slightly moved his eyebrows and did not show much surprise.