Gazing at the pea-sized bead of emerald liquid, Mu Zu couldn't help but speak, his tone laced with a faint excitement. He had absorbed this power for nearly ten millennia, yet each appearance was meager, less than a tenth of what Nie Kong held now. This time, however, such a large mass had appeared all at once.

"This is the Power of Nothingness."

Nie Kong's face lit up with joy. "The Chaos is the origin of heaven and earth, but this Nothingness is the primordial form of Chaos, arguably the origin of origins. The 'Chaos Immortal Spirit' is indeed here."

Seeing Mu Zu's eyes filled with confusion, Nie Kong briefly recounted the matter of the "Chaos Immortal Spirit."

"If it merges with the Tai Yi, it can become the true sovereign of this world. No wonder Chong Xu and Pan Gu turned against the Grand Supreme Zhu Yin back then," Mu Zu sighed profoundly. "Nie Kong, does this mean that to find the 'Chaos Immortal Spirit,' we must break open the 'Void Secret Realm' and forcibly enter it?"

"Indeed."

Nie Kong's brow furrowed with worry.

Though the "Void Secret Realm" of the Chaos Immortal Spirit hadn't completely collapsed, it was extremely fragile—so fragile that even Mu Zu dared not advance to the Grand Supreme realm. During the process of advancing his cultivation, his massive true form would inevitably condense and transform, and at that point, the "Void Secret Realm" within this spring eye would surely shatter.

The "Chaos Immortal Spirit" had not yet developed true independent consciousness.

If the space broke, its power would be agitated. After ten thousand years of recovery, the accumulated might would certainly have reached a terrifying level. If all this power erupted, let alone the utter annihilation of Yin Xu, even Mu Zu might struggle to escape harm.

Of course, Nie Kong could lend assistance while Mu Zu ascended. Mu Zu should ultimately be able to break free from Yin Xu’s shackles and successfully release the "Chaos Immortal Spirit."

But both he and Nie Kong would be severely wounded, and the countless clansmen within Yin Xu would have their souls scattered. By then, who could stop Chong Xu and Pan Gu from seizing the "Chaos Immortal Spirit"?

This method carried too great a risk and was too cruel. Nie Kong would never use it.

Mu Zu seemed to perceive Nie Kong's hesitation, slowly pacing the bottom of the spring eye, his two brows tightly knitted.

"Boom!" "Boom!" "........."

The roaring sounds from the distant Boundary Gate grew increasingly urgent, piercing the spatial obstruction and striking directly into their hearts, making the atmosphere within the spring eye grow ever more solemn.

After a long silence, Mu Zu suddenly said, "Little fellow, I might have a way, but it requires your help."

"Oh?"

Nie Kong was overjoyed.

Mu Zu spoke in a deep voice, "My true form’s roots have merged with the spatial barrier of the 'Void Secret Realm'.... Since that is the case, I shall integrate into it completely."

"No!"

Nie Kong shook his head almost instinctively. If Mu Zu's method succeeded, he would essentially become the incarnation of the "Void Secret Realm." A super expert equivalent to the Grand Supreme realm completely merging with the spatial barrier would not only render the "Void Secret Realm" impregnable again but also easily open this isolated space.

Then, Nie Kong could easily enter and find the "Chaos Immortal Spirit."

But this would mean Mu Zu was shackled by an iron that could likely never be removed. Not only would he be unable to leave Yin Xu, but he would also be unable to leave the "Void Secret Realm," as his true form, the 'Ancestral Heaven Divine Luo Tree,' the Yin Xu Spirit Vein, and this Void Secret Realm would become one.

Unless the "Chaos Immortal Spirit" awakened and managed to advance to the "Tai Yi Grand Supreme." But achieving that was vastly easier said than done; even if that day came, it would likely be another ten or twenty thousand years later.

"Little fellow, do you have another way?" Mu Zu asked with a slight smile.

"But this..."

Nie Kong let out a wry smile, but before he could finish, Mu Zu cut him off. "The current strength of Chong Xu and Pan Gu far exceeds my estimation. Even with the combined might of the four Grand Supremes of the 'Grand Supreme Spirit Realm,' that Boundary Gate can be breached in at most a month. Nie Kong, we don't have that much time to waste."

"What happens to the Heavenly Spirit Continent and the Netherworld after the Boundary Gate passage opens, I cannot concern myself with, but this Yin Xu absolutely cannot suffer harm. I have cultivated here for ten millennia; my children live everywhere. No matter what, I must ensure their safety," Mu Zu sighed deeply.

"Furthermore, you are now a Grand Supreme. With your cultivation speed and the Chaos Divine Power you practice, achieving the 'Tai Yi Grand Supreme' is not impossible. The Tai Yi Grand Supreme is the Lord of Creation; by then, with your abilities, you can easily separate me from the 'Void Secret Realm.'"

Mu Zu paused slightly, his tone deepening, "Little fellow, stop hesitating. Only I can implement this method."

"Good!"

Nie Kong hesitated for a long while before finally gritting his teeth. "Mu Zu, Yin Xu is also my home. As long as I remain, Yin Xu will be safe."

"That puts my mind at ease," Mu Zu nodded with a smile. "Your 'Chaos Immortal Qi' can lure the Power of Nothingness out of the 'Void Secret Realm.' All you need to do now is use your divine power to conjure more 'Chaos Immortal Qi...'"

Nie Kong understood Mu Zu's intention. The more "Chaos Immortal Qi," the faster the Power of Nothingness would overflow, and the clearer Mu Zu’s perception of the spatial barrier would become, allowing his 'Ancestral Heaven Divine Luo Tree' true form to merge with the spatial barrier more rapidly.

As Mu Zu said, this method truly could only be executed by him.

The Yin Xu Spirit Vein was an unintentional byproduct of the Chaos Immortal Spirit lurking here. Mu Zu cultivated here, first merging with the Spirit Vein, and then, due to absorbing the Power of Nothingness, merging with the spatial barrier of the "Void Secret Realm." This was the prerequisite for his true form to completely integrate into the Secret Realm.

No one else could have achieved Mu Zu’s level. After all, no one else could cultivate motionlessly and continuously for hundreds of years. Without the accumulation of hundreds of years, one could never sense the existence of the Power of Nothingness. And now, no one could substitute Mu Zu's role, not even Nie Kong.

Indeed, if he transformed enough "Chaos Immortal Qi," he could clearly sense the existence of the "Void Secret Realm." But the Secret Realm’s spatial barrier was already fused with Mu Zu's roots; unless they were separated, Nie Kong could not integrate into the Secret Realm flawlessly. Separating Mu Zu and the Void Secret Realm was currently impossible.

In a flash of thought, Nie Kong lowered his eyelids, once again driving the "Chaos Divine Art" to its peak state, causing vast amounts of "Chaos Immortal Qi" to emerge from his divine power.

Time ticked by, second by second, and the concentration of Immortal Qi within the spring eye grew higher and higher. Perhaps a few hours, or perhaps a few days later, the "Chaos Immortal Qi" coalesced into a vast, milky-white mass, almost filling the entire spring eye like churning mist.