How could it be an egg? Even with Yi Tianxing's composure, he couldn't help but reveal a trace of astonishment. What he wanted was a supreme killing weapon that could directly suppress and annihilate those Eternal Night powerhouses. Even if it did not follow his will exactly, there should be no reason for it to turn into an egg. This was truly difficult to accept.
However, after just a few breaths, he calmed down.
Even if it was an egg, it could never be an ordinary egg. After all, this was a treasure drawn from the Seven-Colored Treasure Chest.
Even if it contained life, that life had to be one of the most supreme existences.
"Little Mi, take a look at this egg and see what it is."
Before Yi Tianxing, the Wordless Heavenly Book appeared. On its pages stood a thumb-sized spirit of the book, stepping on auspicious clouds, radiating a glow of wisdom.
"Master, rest assured, I'm different now. Compared with before, I am omniscient and omnipotent. Nothing in heaven or earth can escape my eyes. I am the God of Wisdom. Ah—ouch…"
Little Mi wore an expression brimming with confidence, strutting proudly.
But he was immediately suppressed by a strike from Yi Tianxing.
"Enough nonsense. Quickly, tell me what this thing is."
Yi Tianxing pointed at the egg and asked. In truth, when he had opened the treasure chest, he had already received a faint sense from the void that it should be called Gui Xu.
Yes, Gui Xu.
But the problem was, after the Nightmare Treasure Chest had revealed those two words, it provided nothing else—no explanation of what it was. Gui Xu, the Egg of Gui Xu? What kind of thing would hatch from it?
At this moment, the most direct way was to ask the Wordless Heavenly Book.
After merging with the Hongmeng Heavenly Emperor Pagoda during its transformation, the Wordless Heavenly Book had become an Innate Supreme Treasure. Its rank among all Wordless Heavenly Books was now the highest, even unique. Other Wordless Heavenly Books could scarcely reach such a level.
As an Innate Supreme Treasure, its abilities had grown tremendously. In all of heaven and earth, there were but a few things that could escape its perception.
Of course, Yi Tianxing never intended to let this fellow get too arrogant.
"This is an Egg of Gui Xu."
Little Mi glanced at the strange egg and immediately spoke, his brows filled with astonishment, as if even he was deeply shocked.
"Explain its origin."
Yi Tianxing nodded slightly.
"This is one of the most dangerous things in existence, Master. You must be careful—extremely careful. Within the Gui Xu Egg lies terrifying power, not ordinary power, but the true source power of Gui Xu. Its quality is unimaginably high, comparable even to the Primordial Chaos Mother Qi."
Little Mi took a deep breath before speaking.
"What? Comparable to the Primordial Chaos Mother Qi? What exactly is Gui Xu?"
Yi Tianxing couldn't help but grow solemn.
"Master should have seen it before. At the boundary between the two realms of Yin and Yang, when crossing over, you passed through a region—that was influenced by Gui Xu. It is called the Yin Ruins. But compared with the true Gui Xu, that Yin Ruins is less than one ten-thousandth as strange or terrifying.
The power of Gui Xu devours all, buries all, and can end everything. It is said that when a world perishes, it is drawn into Gui Xu. If the power of Gui Xu emerges within a world and cannot be suppressed, sealed, or eradicated, the entire world will meet destruction. It is a calamity of annihilation."
Little Mi's voice grew rapid and heavy.
"Gui Xu? The end of all things, the Yin Ruins between Yin and Yang…"
Yi Tianxing's heart sank. He had never seen Gui Xu, but he had witnessed the Yin Ruins with his own eyes. Its strangeness had far surpassed his imagination. Crossing the two realms, if one was careless, one would fall into the Yin Ruins, losing even the chance of transcendence, sinking into eternal damnation.
If Gui Xu was even more terrifying than the Yin Ruins, then its power was beyond imagination.
Its origin force could rival the Primordial Chaos Mother Qi.
Chaos was the beginning of all things, while Gui Xu was the end of all things.
"In other words, once this Gui Xu Egg erupts, it could annihilate top-level powerhouses."
Yi Tianxing's eyes changed, his expression incomparably grave.
"Yes. With the Gui Xu force contained within this egg, even a Saint who is touched by it would fall on the spot, assimilated into Gui Xu. Any power that touches Gui Xu would be assimilated without resistance. Only life force pushed to the utmost extreme could temporarily suppress or neutralize it. In many worlds, once traces of Gui Xu appear, the final method is always mass sacrifice—countless lives transformed into a vast tide of life force, to neutralize Gui Xu."
Little Mi spoke with deep heaviness.
This was no joke. If one didn't want their world to be destroyed, then all living beings had to sacrifice themselves, offering their lives as the price.
How tragic was that?
Any world touched by Gui Xu was doomed to tragedy. Endless lives extinguished, countless creatures annihilated—all to feed the horror of Gui Xu.
No one wanted to encounter Gui Xu. It was as dreadful as Chaos itself.
In fact, some said Gui Xu was even more terrifying than Chaos.
After all, Chaos was the beginning, Gui Xu was the end. Between life and death, naturally, all feared death.
"The Gui Xu Egg's force can directly form a Gui Xu Sea Eye. Within its range, everything will be destroyed. Even existences surpassing Saints would be swallowed and assimilated. It is an unthinkable ultimate weapon. Once it erupts, the Gui Xu force within it is enough to affect billions of miles. At its core, a Gui Xu Sea Eye will form. The process is almost irreversible. The power is too dreadful."
Little Mi spoke with deep dread.
He had no desire to be contaminated by Gui Xu force. To be tainted by it was a nightmare without end.
"Good, excellent. As expected, the Nightmare World is full of infinite possibilities. This is heaven's will to destroy you all. At such a time, to gift me such a weapon—it could not be more perfect. With this, do you think I'll still fear your survival?"
Yi Tianxing showed no fear, but instead, a flicker of excitement gleamed in his eyes. Countless thoughts flashed through his mind. With the Gui Xu Egg in hand, his plan against the Eternal Night returnees now had much greater certainty. Even if he couldn't succeed immediately, he could unleash it, and then, how could they not die?
"This is the Nightmare World, Master. Why have you come here again? This is no good place. The Nightmare World is far too terrifying. Even I dare not peer too deeply into it. Here dwell supreme beings. It is too dangerous."
Little Mi suddenly spoke, his voice trembling with fear.
The Nightmare World was indeed unfathomable. A true land that could bury everything. Its laws were ever-changing, a chaotic amalgamation.
"Don't worry. Even here, rules still exist. The Nightmare World's Nightmare Sacred Grounds are its rules. This time, I must also go to Nightmare Sacred City."
Yi Tianxing's voice was calm.
He had only entered with an incarnation. Even if he lost it, the impact would not be great.
This time, he wanted to deepen his understanding of the Nightmare World.
With a thought, he merged with the Nightmare Tree, using it to absorb Nightmare power, secretly drawing it into the Hongmeng Heavenly Emperor Pagoda to strengthen its foundation and roots.
Just as before, by relying on the Nightmare Tree's natural absorption, it would not draw the attention of the Nightmare Will. For the Nightmare World, this consumption was negligible. The world was too vast. This loss was nothing.
Time passed quietly.
Unknowingly, half a month slipped away.
—Brush!—
That day, the Nightmare Token he had once obtained suddenly appeared before him, shining brilliantly. In an instant, it formed a seven-colored Heavenly Gate. From the gate came an invisible pressure, vast and boundless.
"At last, the time has come. Nightmare Sacred City, I've returned."
Yi Tianxing smiled faintly and stepped calmly through the gate, entering the Sacred City.
Wrapped in great power, in the blink of an eye, he arrived within a colossal city, standing upon a vast platform. Looking around, he couldn't help but sigh inwardly:
"Nightmare Sacred City… truly an unbelievable existence. Not inferior to the Eternal Ark. Even my Xuanhuang Immortal City, after advancing to the Primordial rank, still feels insignificant before this Sacred City. It must be of the same type as the Eternal Ark—an ultimate artifact."
To forge such a supreme divine artifact, there had to be a supreme being behind it.
Behind the Eternal Ark was the Eternal Green Lotus; behind the Celestial Demon Arms was the Abyss Demon Mother.
These were the roots of such ultimate creations.
Looking at the mist shrouding the Sacred City, even with his Innate Yin-Yang Eyes, Yi Tianxing could not pierce through. He could see further than before, clearer than before, but still, to see through the entirety of the Sacred City in one glance was impossible.
Just then, a sharp-eyed, energetic man nearby spotted Yi Tianxing. His eyes lit up as he hurriedly approached.
"Daoist Yi! It's been such a long time since I've seen you here in the Sacred City. What happened? Were you tied down by other matters? You've missed quite a lot—there have been many great events. Even the Sacred City itself has changed. It's truly a pity you weren't here."
The man greeted him warmly, as though they were old acquaintances.
"So it's Fellow Daoist Thousand Faces."
Yi Tianxing nodded slightly. This was indeed someone he knew—an intermediary within the Sacred City. Back then, he had helped Yi Tianxing acquire a great number of slaves, securing a vast population.
An old acquaintance indeed.