"Roar!"
The Heavenly Demon threw back its head and roared in fury!
At once, terrifying demonic aura erupted outward...
Even Su Fang, separated by the formation, felt a suffocating pressure.
"Damn it!"
"This aura... belongs to a Heavenly Demon at the level of an Eighth-Stage Martial King..."
Su Fang immediately felt that things had gone badly.
Although the formation arranged by the [Heavenly Evolution Array Disk] was extremely powerful, Su Fang had no confidence at all in whether it could defeat an Eighth-Stage Heavenly Demon.
After all, his cultivation was simply too weak—he was only a third-stage Martial General.
Whether he could defeat this Heavenly Demon through the [Heavenly Evolution Formation] was something even he did not know.
Meanwhile.
After clearly seeing its surroundings, the Eighth-Stage Heavenly Demon suddenly cried out in shock.
"How is this possible?"
"How can anyone still know how to arrange the Four Symbols Illusion Formation?"
"Who exactly are you?"
"Why do you know the Four Symbols Illusion Formation?"
Upon realizing that it had been trapped within the [Four Symbols Illusion Formation], the Eighth-Stage Heavenly Demon expert immediately grew tense...
It stared fixedly at the sky within the formation, as though it wished to see through the formation and find the person who had set it up.
On the other side, Su Fang was equally astonished when he saw that this Eighth-Stage Heavenly Demon expert had recognized the [Four Symbols Illusion Formation].
He could not help recalling what had happened within the [Life-and-Death Chessboard].
"It seems this Heavenly Demon is very familiar with the [Sixty-Four Heavenly Evolution Formations]!"
"This is a little troublesome."
Su Fang muttered with a deep frown.
To begin with, he was already at a disadvantage in terms of cultivation.
If not for the [Heavenly Evolution Array Disk], he would not even have been qualified to look this Heavenly Demon in the eye.
And now, this Heavenly Demon actually knew something about the [Heavenly Evolution Formation], making his disadvantage even greater.
Thinking this, Su Fang decided to go all out and strike first.
With that thought, he directly activated a grand formation within the [Four Symbols Illusion Formation]—the [Nine Heavens Mystic Thunder Slaying Formation].
In an instant, lightning flashed and thunder rumbled.
Countless bolts of lightning gathered, then crashed down.
"Damn it!"
"This is the [Nine Heavens Mystic Thunder Slaying Formation]!"
That Eighth-Stage Heavenly Demon expert recognized the formation Su Fang had arranged once again.
He immediately began swearing loudly!
"Human Race formation master, you are utterly despicable! If you have the guts, show yourself and fight me one-on-one..."
As the Eighth-Stage Heavenly Demon expert cursed, he dodged the lightning filling the sky.
At the same time, he gathered demonic aura and continuously bombarded the weak points of the formation.
Seeing this, Su Fang grew somewhat anxious.
Although that Heavenly Demon expert was not particularly proficient in formations, the areas he attacked really were relatively weak points of the formation.
If this continued for too long, the formation was very likely to be blasted open.
Seeing this, Su Fang immediately took out Spirit Stones and channeled spiritual power into the [Heavenly Evolution Array Disk] to repair the formation.
At the same time, Su Fang continuously searched through the [Sixty-Four Heavenly Evolution Formations] in his mind for formations capable of restraining Heavenly Demons.
I've got it! I'll use the [Sevenfold Demon-Eradication Formation].
This [Sevenfold Demon-Eradication Formation] was specifically designed to restrain Demonic Beasts that primarily cultivated demonic aura.
As long as a Demonic Beast remained within the [Sevenfold Demon-Eradication Formation], its demonic aura would be continuously drained away, achieving the effect of eradicating demons.
And that Eighth-Stage Heavenly Demon happened to be a Demonic Beast that cultivated demonic aura.
Using the [Sevenfold Demon-Eradication Formation] was perfectly suited for this.
Thinking this, Su Fang immediately activated the Comprehension System and began comprehending the [Sevenfold Demon-Eradication Formation].
"Ding! Do you wish to comprehend the [Sevenfold Demon-Eradication Formation]?" "Yes," Su Fang chose.
Afterward, diagrams of formation patterns began appearing in his mind. Before long, Su Fang had completely comprehended the [Sevenfold Demon-Eradication Formation].
After successfully comprehending it.
Su Fang waved the [Heavenly Evolution Array Disk] and immediately began arranging it.
Very quickly, the [Sevenfold Demon-Eradication Formation] was successfully arranged and activated at once.
In an instant, the heavens and earth within the [Four Symbols Illusion Realm] began to darken.
A gray aura began to spread...
Wherever that aura passed, within the space that had originally been filled with demonic aura,
all demonic aura actually began to collapse and scatter... "Th-this... what formation is this...?"
The Eighth-Stage Heavenly Demon began shouting in panic.
Clearly, he was not thoroughly familiar with every [Heavenly Evolution Formation].
Seeing this, Su Fang felt slightly relieved.
He then continued increasing the [Sevenfold Demon-Eradication Formation]'s force in draining demonic power.
"Damn it!"
"My demonic power is dissipating..."
The Eighth-Stage Heavenly Demon expert howled. He immediately panicked like an ant on a hot pan, repeatedly crashing around within the formation...
The three formations trembled continuously under the Heavenly Demon's impacts...
"An Eighth-Stage Martial King-level Heavenly Demon expert really is difficult to deal with..." Su Fang said gloomily.
He had thought he could already keep the Heavenly Demon under his thumb, but he had not expected its demonic body to be so powerful as well, smashing the formations to the brink of collapse.
"Hmph, I refuse to believe I can't wear you to death," Su Fang said viciously.
He then took out all the Spirit Stones on his body and continuously channeled spiritual power into the [Heavenly Evolution Array Disk]...
Thus, the three [Heavenly Evolution Formations] were repeatedly repaired at the brink of collapse, yet they were never broken.
Meanwhile, the Eighth-Stage Heavenly Demon within the three grand formations grew weaker and weaker, and the strength of his resistance gradually diminished.
Only after enduring until this moment did Su Fang finally feel somewhat relieved.
Then, he began to ache over the fact that he had used up more than half of his Spirit Stones.
One had to know that Spirit Stones were already extremely difficult to obtain within the Gods and Devils Cemetery.
There were basically very few sources of production. Most Spirit Stones had been brought in by prisoners themselves through storage rings.
If he had not obtained a large number of Spirit Stones from that brat Jiang Chen, Su Fang truly might not have been able to outlast the enemy in this battle of attrition.
Fortunately, the final victor would ultimately be him.
Seeing the Heavenly Demon in the formation, already at death's door and no longer moving,
Su Fang decided to give it the "final blow."
Countless thunderclouds gathered within the formation, and then tens of thousands of lightning bolts crashed down at once.
"Ah! Human! I curse you to be hunted down by my Heavenly Demon kin for all eternity!"
"Our Heavenly Demon Clan will one day return to this world!"
Within the countless bolts of lightning, the Eighth-Stage Heavenly Demon roared unwillingly.
Then, it turned into ashes and vanished...
Seeing that he had finally killed this Eighth-Stage Heavenly Demon, the stone weighing on Su Fang's heart was finally lifted.
He then withdrew the formations and lay on the ground to rest in exhaustion.
Yet the words spoken by the Heavenly Demon before its death continued echoing through his mind.
"The Heavenly Demon Clan will return to this world?"
"Then everything that happened in the [Life-and-Death Chessboard] was real. There truly was a great war between humans and demons in ancient times."
"Why was there not the slightest record of it in later generations?"
Questions arose in Su Fang's mind one after another.
Then, he remembered that this tomb belonged to an elder of the Violet Star Palace.
Yet a Heavenly Demon had appeared inside it.
No matter how he thought about it, this matter had an enormous connection to the Violet Star Palace.
There was a strong possibility that the Violet Star Palace had a spy from the Heavenly Demon Clan within it—and that spy held no low position.
Before you continue