Inside the gate of the Heavenly Demon Tomb lies a space of unimaginable size.
From the outside, it looks like it's only a few dozen or a hundred kilometers in radius.
However, once Guo Feng entered, he couldn't see the end at all; the sky was layered upon layered, reaching tens of thousands of meters high.
Everywhere you look, there are dark mountains, vast marshes, and dark metal tower-like buildings.
At first glance, they were densely packed, and it was impossible to tell how many there were.
"These are all formations, one formation after another, requiring countless celestial demons to activate! How powerful must these magic treasures be? If they were truly activated, not just anyone could do it, unless they were a Great Luo Golden Immortal. My god..."
Guo Feng was completely shocked by what he saw inside the Heavenly Demon Tomb.
This is a magical weapon; it can be used to blast away enemies.
However, it is also a place that nurtures celestial demons, where endless celestial demons can be conceived.
It is another huge space, a cave, that can accommodate hundreds of billions of people.
Of course, ordinary people simply cannot live here.
It's terrifying, it's like the underworld!
"If I subdue this Heavenly Demon Tomb, not only will I be able to achieve the Great Heavenly Demon Path, but I will also possess an unparalleled treasure. Apart from the Nine Heavens Tower, no other treasure can compare to this Heavenly Demon Tomb."
He had already realized the immense value of this Heavenly Demon Tomb. "I must refine it. The seventy-two Heavenly Demon King tombs await me!"
With a thought, he flew towards the seventy-two enormous tombs of the Heavenly Demon Kings, which were filled with dense demonic energy in the sky.
From afar, he looked like an unparalleled demon king, and no other celestial demons noticed his difference, since the Great Celestial Demon Path could create celestial demons.
However, he also understood that if he revealed any other aura, countless demons would rush over and tear him to pieces.
With so many demons, even celestial immortals and mystical immortals might not be able to handle them.
Before long, he had already soared into the sky, only a few kilometers away from the seventy-two tombs of the Heavenly Demon King.
With a loud boom, a massive demonic array, shimmering with boundless demonic energy and countless demonic runes, began to spin like a giant millstone.
This is a powerful formation that has been activated, and it is rotating faster and faster, forming a huge vortex.
Dozens of mortal-level ninth-grade demons that were nearby were pulled in before they could react. They were torn apart and exploded alive, turning into pure demonic energy that merged into the great formation.
"What a powerful formation! If I were a little weaker, I would have been ground to dust in an instant."
Guo Feng felt the terrifying and enormous suction force. Fortunately, he had powerful magic power, equivalent to nearly three hundred immortals. Even by simply circulating the Great Heavenly Demon Path, he was able to stabilize himself.
However, the suction force continued to increase, seemingly without end.
He then understood that this great formation was designed to prevent anyone, including other celestial demons, from entering the tombs of these celestial demon kings.
I don't know if it's a test or a defense.
"No matter how strong the formation is, I still have to go in."
He also knew that he could not delay and had to refine the Heavenly Demon Tomb as soon as possible, and then block the Heavenly Demon Wormhole.
Otherwise, it will be too late.
With a thought, he activated his supreme demonic energy, transforming it into the Great Heavenly Demon Guardian Light, which, like a beam of light, directly rushed into the great formation.
Upon entering, he immediately felt the terrifying tearing force, which was constantly depleting his Great Heavenly Demon Guardian Light, consuming his mana every second.
Even if he doesn't die instantly from the wear and tear, he can only last less than ten breaths without replenishment.
However, the space within this great formation is hundreds of thousands of kilometers long!
This is a spatial folding formation; from a distance, it appears to be only a few kilometers long, but inside it spans hundreds of thousands of kilometers.
Moreover, it contains endless lightning and black spatial rifts.
When you teleport, you can't just rush around recklessly; you have to be very careful.
Boom boom boom...
He had just withstood the immense tearing force of the formation when bolts of black, spherical lightning, like a deluge of raindrops, surged toward him.
He quickly unleashed a series of black demonic handprints with both hands, clashing with the ball lightning. Space shattered, and the lightning was detonated.
The entire array space seemed to be undergoing nuclear fission, which was extremely terrifying.
"Fortunately, I have the Repair Fruit. Although the Repair Fruit can no longer fully restore me to my peak condition, especially since my injuries cannot be fully healed, ten Repair Fruits can still restore all my mana."
Guo Feng couldn't help but feel secretly relieved, as they were using the Great Heavenly Demon Light to resist the tearing force of the formation.
He also had to continuously unleash the Heavenly Demon Handprint to blast apart the incoming ball lightning.
This consumes so much magical power that an ordinary person would be completely drained in an instant.
He was able to keep moving forward by continuously consuming the restorative fruit.
If an opportunity arises, teleport ten thousand miles away instantly.
The journey was extremely dangerous; one wrong step and it could have been catastrophic.
The difficulty of refining this Heavenly Demon Tomb is simply unbelievable.
Fortunately, he is now earning 10,000 spirit stones per second, which is equivalent to 100 million in profit per second.
You can eat the repair fruit as much as you like.
If you find an opportunity, teleport away, and if you see a ball lightning bolt, slap it and destroy it.
Finally, after consuming countless restorative fruits and spending an unknown amount of time, it finally shot out from that area spanning hundreds of thousands of kilometers.
As soon as he stepped out of the formation, he felt completely exhausted; it was too dangerous.
"This formation is terrifying. I don't know what kind of grand formation it is. It spans hundreds of thousands of kilometers in radius. It's so vast that it would take an ordinary person half a year to drive at 200 kilometers per hour without eating or drinking. It's outrageous!"
After he came out, he took a deep breath, adjusted his state, and restored some of his mental strength.
Then, he suddenly seemed to freeze.
Before him lay an enormous, indescribable tomb and the projection of a giant.
There are a total of seventy-two tombs, each of which is estimated to be several tens of kilometers in circumference.
On each tomb, atop it sat a black giant of varying stature, who were likely the predecessors of the Heavenly Demon King, all in a state of meditation with their eyes closed.
However, at first glance, they were no longer demons; there was no sense of terror or negativity, but rather a kind of dark divinity.
"Master, these are not the tombs of the Heavenly Demon King, but at least the tombs of the Heavenly Demon Emperor!"
At this moment, Li Hunyuan's extremely surprised shout came from the Hidden Dragon Immortal Sword.
"The Heavenly Demon Emperor?"
Guo Feng was taken aback. His understanding of the classification of Heavenly Demons was still somewhat confused. However, he could sense that the owners of these tombs were probably extremely terrifying beings in their lifetimes!
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