Living as a Demon Lord in the Dungeon

Upon hearing this, Isha covered her mouth in shock: "The soul of a dragon? Is there a dragon's soul inside?"

"Yeah, I didn't expect that old bastard to be so good at hiding his true intentions!"

Sean originally thought that the necromancer had obtained a complete dragon skeleton by chance, but he didn't expect that he had even gotten his hands on the dragon's soul.

This is an extremely rare treasure, a complete dragon soul, its value even surpassing that of the dragon skeleton!

However, the soul strength of this dragon's soul is truly high. Presumably, the necromancer sealed its soul because he couldn't suppress it.

Sean mentally estimated that with the strength of his divine sense and the help of the Myriad Soul Banner, he should be able to subdue the dragon's soul.

Once successful, you can fuse it with the original skeleton to obtain a powerful dragon lich!

Its combat power far surpasses that of the Bone Dragon, and it can even make the Seven Demonic Calamities of the King wary.

Moreover, its growth potential is enormous, and it may even become a being that rivals the Demon King in the future!

However, huge profits also mean huge risks.

The Ten Thousand Souls Banner alone is not enough to guarantee 100% success.

If I fail to suppress the dragon's soul and it escapes, I will likely face endless pursuit from the dragon race in the future!

After thinking it over, Sean took the tin box in his hand and waved to Isha.

"Isa, let's go, to the ground."

Isha looked bewildered: "Huh? What are you going to do on the ground?"

"Let's plant trees!"

"Plant, plant trees?"

Isa was puzzled, but she quickly followed.

After arriving on the ground, Sean slowly walked to the center of the island, took out the sapling of the Nine Nether Ghost Locust Tree, and planted it.

As soon as the demonic tree landed, its roots seemed to come alive, breaking through the soil and forcefully burrowing into the rock strata, greedily absorbing the surrounding yin and ghostly energy.

The sapling, which was originally only the size of a baby's arm, began to grow wildly and in the blink of an eye, it grew to be more than a person's height.

Isa then recognized it: "Nine Nether Ghost Tree! Master, could this be the sect's sacred tree, the Nine Nether Ghost Tree, recorded in the 'Nine Nether Myriad Souls Technique'?"

"Indeed, this swamp is a natural place where yin energy gathers and evil spirits condense, making it the most suitable place for the Nine Nether Ghost Tree to grow."

"Come, come with me and circulate the 'Nine Netherworld Souls Technique' under the tree to help it grow and take shape as quickly as possible."

"Okay! Sure!"

Isa sat cross-legged under the ghost locust tree with Sean, leaning against the trunk and beginning to circulate her cultivation technique.

In an instant, the Nine Nether Ghost Tree absorbed the surrounding Yin energy and silica sand at a new level.

Sean and Isa also benefited greatly, especially Isa, who possessed the innate Netherworld Holy Body. When she circulated her cultivation technique, she resonated with the Ghost Locust Tree, and her cultivation level began to improve rapidly.

And because of the feedback from the Myriad Laws Demon Lord System, Sean's cultivation level improved at an accelerated pace.

A full prayer period passed before the growth rate of the ghost locust tree gradually slowed down. Meanwhile, the yin energy and ghostly aura accumulated in the swamp were almost entirely absorbed.

Even the poisonous miasma that had enveloped the swamp had almost completely dissipated.

The people in the underground city on the shore were also quite startled when they saw a two-story-high tree suddenly appear on the island in the middle of the lake.

The two people under the tree opened their eyes, and Sean nodded in satisfaction as he looked at the thick tree trunk.

Although it hasn't reached maturity, the Nine Nether Ghost Tree in its current state is more than capable of suppressing the dragon's soul.

To everyone's surprise, he actually broke through to the fourth level of Foundation Establishment through this cultivation, while Isa surpassed her sister Elsalia and directly reached the Great Perfection of Qi Refining!

She is very likely to become the second person to reach the Foundation Establishment stage in the underground city.

Sean couldn't help but sigh inwardly, "As expected of the Holy Body, the speed of cultivation is truly frightening."

"Isha, you have reached a critical juncture. Do not rush into Foundation Establishment. You must solidify your foundation and make thorough preparations."

It's important to know that the consequences of failing to break through to the Foundation Establishment stage are extremely serious.

Of course, don't be too afraid. When you break through, your master will personally protect you.

Isa hugged Sean happily and said sweetly, "Yes, Isa understands, thank you, Master."

Sean ruffled Isaac's hair, then turned and stared blankly at the two-story-tall Nine Nether Ghost Tree.

The patterns on the trunk of this demonic tree resemble the claw marks of evil spirits. Despite its lush foliage, it appears even more deathly than those withered trees, truly deserving of the name "Ghost Tree."

"Master, why did you suddenly decide to plant this Nine Nether Ghost Tree?"

"Hmph, because I need it to help me subdue the dragon soul!"

Sean reached out and summoned the Myriad Souls Banner: "Later, you will use the Nine Netherworld Myriad Souls Technique to mobilize the power of the Ghost Locust Tree and work with me to suppress the dragon soul in this box."

"Oh, I see!"

Isa suddenly realized what was happening, took two steps back to the ghostly locust tree, and said, "Master, Isa is ready!"

"Very good! Let's begin!"

Sean tossed the Myriad Soul Banner into the air, made a hand seal, chanted an incantation, and roared, "Nine Netherworld Thousand Army God-Devouring Formation! Activate!"

Thousands of banner spirits once again swarmed out, donning armor and wielding weapons, transforming into ghostly soldiers who descended upon the world!

Within the formation, Sean concentrated his divine power and gradually erased the demonic runes on the iron box.

"Bang!"

As soon as two seals were broken, the dragon soul inside the box suddenly exerted its power, violently breaking through the remaining seals from the inside and escaping.

Seeing this, Sean quickly pressed down with one hand, directly freezing the dragon soul in mid-air.

"Damn humans! Foolish ants! How dare you blaspheme the great Deathwing of Destruction! August Lionel Blackwood!"

You will pay a heavy price for your actions!

The dragon soul trapped in the killing formation trembled violently, revealing its true form. Upon seeing it, Sean realized that it was a ferocious black dragon with a hideous appearance.

"Hmph! Want to talk tough? Wait until you're free!"

Suppress them!

Sean made a hand seal with one hand, and powerful divine sense surged from the ancestral aperture between his eyebrows, crashing into the black dragon's soul like a torrent.

"What! A mere human possesses such powerful mental strength! Hey, brat, you're worthy of being taken seriously by the great Deathwing of Destruction!"

The black dragon roared repeatedly, its powerful spiritual energy clashing with Sean's divine sense, and the two entered into a tug-of-war of strength.

Seeing this, Isa quickly said, "Master! I..."

"Don't move!"

Sean stared at the black dragon's soul and laughed: "This guy's mental strength is much weaker than I expected."

"You just need to stand by and protect it; I can suppress it on my own."

"Yes, Master."

"What? You actually said I'm weak?"

The black dragon roared furiously, like a cat whose tail had been stepped on: "Arrogant ant! I only showed mercy because you broke the seal, and used less than 30% of my power!"

I never expected you to be so ungrateful!

"Very well! Now I'll show you the true terror of the Destroyer Deathwing!"

Sean raised an eyebrow and immediately held his breath, ready for battle.

Unexpectedly, although the black dragon shouted loudly, its mental strength did not improve at all, which left him speechless.

"...Are you starting to exert your strength?"

"We've made it! Of course we've made it! Haha, are you trying to beg for mercy now?"

Let me tell you, since you're a decent person, as long as you sincerely apologize, we might be willing to...

"So noisy!"

Sean roared, intensifying his divine sense once more, and pressed down with one hand: "Bolt!"