Seeing the Undying melting on the ground, Hua Qian and the others were dumbfounded, their faces full of astonishment.
He really killed it!
Although from the moment Su Chen crushed the Undying with his first punch, they knew that Su Chen's strength had surpassed the Undying, but when Su Chen really killed an Undying by himself, they still couldn't help but be a little shocked.
An Undying that required dozens of Longevity Tribulation powerhouses to besiege and kill was actually killed by Su Chen alone.
This was too terrifying.
Could it be that Su Chen's combat strength has reached such an abnormal level?
Even the strongest Soul Master, Wu Cong, definitely didn't have the ability to kill an Undying by himself.
"Why did an Undying suddenly appear?"
Su Chen turned around and asked, clapping his hands.
Killing an Undying was as if it was just a trivial matter.
Hua Qian was taken aback, and quickly explained: "Just now, we found a man-made tunnel and were about to go in to investigate, but this Undying rushed out from inside."
"Take me to have a look."
Hua Qian nodded obediently and led the way.
Soon, Su Chen arrived in front of the man-made tunnel.
Sure enough, it was man-made, but it was very old and had existed for many years.
Su Chen directly shot out a flame to illuminate the tunnel.
It was a very deep tunnel, and the space inside was unstable and very distorted. It was very dangerous to rush in.
However, there must be a great opportunity in a place guarded by an Undying, so he had to give it a try.
Moreover, Su Chen was confident that with his current physical strength, he could resist this level of spatial turbulence.
As soon as they saw the environment in the tunnel, Hua Qian and the others wanted to retreat.
"Holy Son, we won't go in with you, lest we drag you down."
"Fine."
Su Chen nodded and walked into the tunnel alone.
The tearing force of space immediately came.
Su Chen's body shook, and divine runes were released in all directions like spider silk, stabilizing his body to prevent him from being dragged away by the spatial turbulence.
The deeper he went into the tunnel, the stronger the pulling force of the spatial turbulence. If it was before, Su Chen might have been swept away by the spatial turbulence, but his physique was too strong now. Even under the bombardment of the spatial turbulence, he could maintain general stability.
Without any twists and turns, Su Chen passed through the turbulence and walked to the end of the tunnel.
There was a thick metal door blocking the way, but the metal was very decayed.
Su Chen threw a punch and directly broke through the door.
Behind the door was a round stone room that wasn't too big. There was an arc-shaped dome above his head, which was emitting a lustrous white light. There were many strange runes engraved on the ceiling.
These were not the inscriptions used by the Spirit Race. These inscriptions were closer to the inscriptions used by the Demon Race and contained the aura of the Demon Race.
Why were there Demons in the Soul World?
Su Chen did not think too much and continued to investigate.
In the center of the stone room, there was a double helix structure of prismatic twin spires, more than two meters tall, with strange energy fluctuations coming.
This time, Su Chen was very sure that this was indeed the aura of the Demons.
And it was not an ordinary Demon, but a heavenly demon like Empyrean Seven Treasures!
But this demonic power was very weak and did not make Su Chen feel threatened.
He slowly moved forward, and did not sense any danger.
Only then did Su Chen walk forward boldly.
As Su Chen approached, the twin spires burst out with light from bottom to top, and actually shot out a light screen.
The light screen condensed, turning into a void projection of a demonic person.
"I've waited for you, my child."
Su Chen was slightly taken aback and immediately turned hostile.
Who's your child, your face is really big.
But Su Chen immediately saw that this demonic person was not communicating with Su Chen in real time, but like a video recording, a picture left behind in advance.
"Child, you can see me, which means that the blood of the Demon Race flows in your body. You can break into the core fortress of the Spirit Race, which means that you have great strength. You are the candidate I need. Put your hand on the twin spires, here is my life's cultivation, I will pass it all to you. In return, you have to destroy the Spirit Race for me and avenge me!"
Su Chen understood.
This demonic person should be a heavenly demon captured by the Spirit Race a million years ago to study the art of immortality.
Although Su Chen was not a Demon, he had the Undying and Imperishable Diagram, so he could be considered to have a portion of the Demon Race's bloodline, so he was misjudged.
"I'm a little embarrassed to have picked up such a bargain."
The Spirit Race had been destroyed long ago, which meant that Su Chen picked up the treasure left behind by a heavenly demon for free, and he did not have to pay any price. It was too good.
But …
Could Su Chen really absorb the power of the heavenly demon?
Su Chen was very satisfied with his current state. If he absorbed the power left behind by the heavenly demon, his bloodline would mutate, and the Demon Race's physique would suppress the Human Race's physique. That would be troublesome.
The Demon Race was also hated by everyone in the World of Immortal Cultivators, especially the heavenly demons. Once they were discovered, they would be destroyed.
But it was rare to come across such a free opportunity, so Su Chen was a little reluctant to give it up.
After hesitating for a long time, Su Chen gave up in the end.
But he could not waste an opportunity.
"Concubine Yan, come out."
Su Chen directly summoned Concubine Yan.
"Master … Eh?
Isn't this the Blood Soul Demon Lord? "Concubine Yan saw the demonic person on the projection and could not help but be slightly surprised.
"You know him?"
Su Chen was also taken aback, but immediately figured it out. The heavenly demon must have been captured by the Spirit Race a million years ago, which was the same era as Concubine Yan.
Concubine Yan was also from the Demon Race, and she had the noblest bloodline of the Demon Race, the Six-fingered Demon God. It was not surprising that she knew the heavenly demon of the same era.
Yan Fei nodded and said, "His name is Blood Soul. He is a Demon Lord with the strength of the Heaven's Equal Realm. He used to be a fierce general of the Demon Clan. The Blood Demon Technique he practiced was extremely overbearing, but for some reason, he disappeared."
"Try and see if you can absorb the power left behind by the Blood Soul Demon Lord."
Su Chen said.
Concubine Yan nodded. She did not go forward directly, but her soul flew out of her body and walked toward the Twin Towers.
When Concubine Yan's hands touched the Twin Towers, the Twin Towers suddenly flashed with lightning and thunder, and a violent demonic power was continuously transmitted to Concubine Yan's soul.
The whole process lasted less than three minutes.
Su Chen hurriedly asked, "How do you feel?"
Concubine Yan turned around. Her soul was much more solid than before, and at first glance, one could not even tell whether it was a physical body or a spiritual body.
"More than half of the demonic power left by the Blood Soul Demon Lord has dissipated in the past million years. Only a small part is left, but it is still very powerful. Concubine Yan's strength has recovered to the peak of the Longevity Tribulation, and there is hope for her to return to the Heaven Ascension Realm."
The lifetime power of a heavenly realm expert was only enough to raise Concubine Yan's strength from the Infinite Tribulation to the peak of the Longevity Tribulation.
Fortunately, Su Chen did not take the risk. It was not worth it to turn himself into a heavenly demon for such a small benefit.