**Chapter 626: The Ancient Secret, Purple Qi Spreads for Billions of Miles**
Shulin Muyu retracted his hand and stood in the pavilion, observing the changes.
The pavilion glowed, and standing within it felt like hearing the roars of dragons and tigers.
It seemed as if there were also the sounds of soldiers clashing in battle.
The [Primordial Secret Realm] was not dangerous; no one had ever encountered any mishaps within it, so Shulin Muyu was not worried at all.
He was merely curious about what the [Primordial Secret Realm] was hiding by using laws to prevent people from knowing what happened inside. Was it something that couldn’t be revealed to the public, or was it something others were not worthy of knowing?
Both possibilities existed, and only by experiencing it could one understand.
Shulin Muyu was now waiting, waiting for the answer to appear.
The light grew brighter and brighter, and Shulin Muyu found that the pavilion had disappeared, and he was now in the cosmic starry sky.
In the cosmic galaxy, countless star worlds flashed before his eyes.
In the starry sky, countless powerful beings appeared, each one terrifyingly powerful.
Although it was just an illusory scene, Shulin Muyu knew he was merely an observer.
But he could clearly feel that these powerful beings could kill him countless times over with just a glance.
His so-called undead army, various life-saving skills, and resurrection skills were all useless.
Yet in the scene, tens of millions of powerful beings were joining forces, each with a tense expression, seemingly waiting for something.
Until deep in the starry sky, a person appeared.
These invincible beings became nervous, and a murderous aura rose from them.
"Intercept!"
"So many invincible beings joining forces to intercept someone."
"Who is that person? To be so strong that it requires so many invincible beings to join forces, and each one is so nervous." The figure in the depths of the starry sky quickly approached.
In Shulin Muyu’s vision, an old man in a green robe appeared. He couldn’t see the old man’s face, but he knew it was an old man. The old man wore a green robe, his long hair flying, riding a green ox, stepping through the starry sky.
"The Dao is always inactive, yet nothing is left undone!"
"The highest good is like water, benefiting all things without contending!"
"The Dao gives birth to one, one gives birth to two, two gives birth to three, three gives birth to all things!"
As Shulin Muyu saw the old man, he heard the sound of chanting in his ears.
The old man rode the green ox, seemingly slow but actually fast, crossing the starry sky in an instant.
Wherever he passed, the invincible beings silently died.
Some turned to ashes, some fell as stars, none survived.
Even those who wanted to escape found themselves trapped in a quagmire, unable to flee.
In an instant, thousands of invincible beings perished.
The old man didn’t even glance at them.
Purple qi surged from the old man’s body, boundless and endless, disappearing into the starry sky.
Wherever he passed, the strong bled, turning into a starry path, filled with killing intent, vast and grand.
Shulin Muyu was shocked, beyond words.
Such a fantastical scene appeared before his eyes, shaking his mind greatly.
If it were someone else, they might have had a mental breakdown.
Shulin Muyu’s shock was not just from this, but also from the words he heard.
"This is... the Dao De Jing."
"How could I hear the Dao De Jing?"
When he first obtained the [Primordial Rune], he saw the character for "soldier" and recognized it as similar to ancient Chinese characters, which was already incredibly surprising.
Now, in the [Primordial Secret Realm], he heard the Dao De Jing.
He became even more convinced that this place was connected to ancient China.
"China, Shenxia, Shenlong, characters..."
"There was a legend that Laozi left Hangu Pass, with purple qi spreading for three thousand miles."
"The old man on the green ox, chanting the Dao De Jing, with purple qi spreading, could this invincible old man be Laozi?" One question after another arose.
Shulin Muyu felt a bit overwhelmed, never imagining he would witness such a scene. He instinctively believed it to be real.
As Shulin Muyu pondered, the scene before him disappeared.
In the starry sky, two large characters appeared, each as vast as a star field, occupying a large part of the starry sky.
Planets and stars seemed tiny compared to these characters.
The two characters shone brightly, rotating and floating in the starry sky.
The two characters were the [Primordial Runes] he had mastered, the "soldier" and "person" runes.
Although these characters were different from the ones he had learned, he could recognize them at a glance.
It was like how many people who couldn’t write traditional Chinese characters or had never learned them could still recognize them when they saw them.
This is the inheritance of culture.
The two glowing characters kept jumping before his eyes, exuding an indescribable ancient aura.
"These characters are even older than ancient Chinese characters."
"The characters contain laws, powerful laws, stronger than any I have seen before."
Shulin Muyu silently recited the two characters, and the starry sky shook violently.
His hand trembled slightly, and the [Primordial Runes] on it began to glow, resonating with the characters.
In the next second, the two ancient characters shattered before Shulin Muyu, turning into countless light spots that drilled into his body.
The light spots occupied every corner of Shulin Muyu’s body, even his soul.
This time, the Nine-Color Dragon Soul Crystal had no reaction, allowing the light spots to enter.
This indicated that the light spots were not dangerous and would not harm his soul.
The scene before Shulin Muyu changed rapidly, and the sound of killing filled his ears, with a nauseating smell of blood making him uncomfortable.
Shulin Muyu considered himself decisive in killing, having leveled up through countless battles, killing many monsters and enemies.
He had waded through a sea of blood.
Especially when facing the dragon race, he had killed them in batches.
He thought he had seen all kinds of bloody scenes and was used to the smell of blood.
Even so, he had never encountered such a terrifying bloody aura, making even someone as battle-hardened as him feel like vomiting.
Suddenly, a drop of blood fell from the sky, hitting his head.
His vision turned completely red, not just red, but red mixed with purple.
The bloody smell entering his nose became even stronger, almost making him vomit on the spot.
Shulin Muyu immediately sealed his sense of smell and wiped the blood from his eyes.
But even with his sense of smell sealed, the bloody smell still penetrated, pervasive and unavoidable.
This smell was hard to avoid and directly affected the soul.
He had no choice but to endure it.
The blood flowing down his face was thick and purple-red, like syrup.
The blood gathered in his palm, as if it had life.
The blood contained immense energy, even emitting a blinding light, making it hard for Shulin Muyu to look directly at it.
"This is the blood of a strong being, containing laws."
Shulin Muyu sensed the aura of laws in the blood.
He knew that only those who had integrated laws into their entire being would have such blood.
The blood of the God of Poison contained a trace of laws, just a trace.
But this drop of blood had a terrifyingly strong aura of laws, far surpassing the God of Poison.
This indicated that the owner of the blood was countless times stronger than the God of Poison.
Shulin Muyu looked up and saw that the blood came from the sky.
The sky was pitch black, not because it was night, but because it was obscured by some creature.
This creature was unimaginably large, its length beyond Shulin Muyu’s calculation, truly covering the sky and the sun.
The creature seemed to be in battle, and the energy it stirred up was enough to destroy the world.
Everything felt too real, and Shulin Muyu realized he was no longer just an observer but truly part of the scene.
The existence in the sky was on a different level from him, and even if he tried his best, he couldn’t join the battle. The energy waves it caused were enough to kill him.
Fortunately, there was an invisible barrier between him and the creature, blocking the energy waves.
Shulin Muyu snapped out of his shock and looked around.
He knew there was no danger in the [Primordial Secret Realm], and joining this seemingly real battle was definitely a test.
Looking around, he saw enemies charging at him.
Their aura was not very strong, just slightly stronger than his.
Enemies came from all directions, countless in number.
And he was alone.
Shulin Muyu was not nervous; he had faced such situations many times, used to fighting against the odds.
He instinctively tried to summon his undead army but found that it was unresponsive.
The summoning space still existed, and the skills were still there, but he couldn’t use them.
It seemed that some mysterious and powerful force had sealed his skills.
Shulin Muyu clearly saw that his soul was filled with light spots, which were sealing his skills.
Without the undead army and other skills sealed, how could he respond?
"A dead end?" Shulin Muyu felt a moment of tension.
But only for a moment, he quickly calmed down.
The [Primordial Secret Realm] test would not present an unsolvable dead end.
"Since my skills can’t be used, only you two are left."
His gaze fell on the backs of his hands, the "soldier" rune for [Strong Soldier] and the "person" rune for [Gathering Power], which could still be used.
The solution lay in these.