"Alright!"

The black snake's face lit up. The skeptical expression immediately changed to one of approval and appreciation, as if it had recovered some of its vitality. Its stiff body slightly trembled, and the dark gray scales on its body suddenly lit up, letting out a buzzing sound.

"If you can complete it, I will give you another demon beast. It will be on par with me when I was at my peak!"

Lin Yu's entire body shivered, his eyes revealed a look of shock, compared to his peak state, was comparable?

This black snake in front of him was already extremely powerful. Its mountain-like body and the blood-red human eye that did not know what effect it had were only half of it. Wouldn't it be swallowing mountains and sea at its peak?

BOOM!

The huge tail of the black snake, which was hidden in the swamp, suddenly shot out and struck a swamp lake with lightning speed.

Water splashed everywhere and black mud flew everywhere. It was like a giant wave that swept away all the water and black mud, revealing the bottom of the lake that was covered with blue stones.

The human eye on the Black Snake's chest suddenly opened. A bloody light shot out from that eye towards the lake, condensing into a blood-red road five meters wide.

"Human friend, please!"

The black python's exposed chest and above body slowly moved in the swamp, the small black snakes on both sides scattered, forming a hundred meter wide circle around it, protecting the black python and Lin Yu inside.

Lin Yu carefully crawled forward on the black mud, only to discover that the black mud beneath his feet had become stiff, allowing him to stand and walk. He couldn't help but look at the black snake with gratitude.

When he touched the blood red road, Lin Yu felt all the fatigue in his body dissipate, he became full of energy and clenched his fists, as though he possessed an inexhaustible power.

The layers of black mud on his body also slowly disappeared as plumes of blood red qi emitted from the blood-red road and condensed towards Lin Yu. In just a breath's time, it formed into a blood red armor, and wore on his body.

After walking about three hundred meters, they finally arrived in front of the lake.

The blue stone was no longer there. At the bottom of the lake, there was a ten-meter-long stone door, which was crisscrossed with blue and red. On either side of the stone door, there were carvings of two Vicious Beasts; one was a black snake, and the other was a giant Blue Armored Turtle.

Roar!

The black serpent suddenly raised its head high and roared.

The black mud in the swamp trembled, sputtering out in all directions. The small black snake retreated another hundred meters away, only stopping when it was 300 meters away, once again forming a circle.

The black snake slowly spat out a semicircle sphere of blood. The surface of the black snake was twined with wisps of blood that twitched. As if it had a mind of its own, the blood slowly floated to the front of the black snake's open chest and fused into it!

A dense bloody light shot out from the blood-red human eye and gathered at the side of the stone door where the black snake was carved.

With a rumble, the stone door slowly opened. However, it only opened on one side where the black snake was carved, and on the other side, there was the huge blue turtle. There was no sound at all.

"Let's go in!"

The black snake was one step ahead of Lin Yu, moving its large half body, and barely managed to enter the stone door.

"Oh, okay!"

Lin Yu retracted his gaze from the huge blue tortoise and replied hurriedly.

He took a deep breath and followed behind the black snake, entering a cave that was crisscrossed with blue and red.

"Lin Yu, have you, this trash, died yet?"

Nangong Yao taunted from outside the Thousand Goblins Domain.

This comprehension was something that Nangong Yao had created.

But because of his cultivation level, he couldn't enter the domain of demon, and he was in charge of everything.

To truly control the Thousand Goblins Domain, Nangong Yao had to at least be at the Aurous Core stage.

"I'm fine."

Lin Yu answered loudly.

Lin Yu carefully observed the black serpent's expression, but discovered that it had a calm expression, as if it hadn't heard Nangong Yao's words.

All of these couldn't help but cause great interest to surface in Lin Yu's heart.

The layout of the underground cave wasn't much different from that of an ordinary palace. The two sides were symmetrical, but there were two seats in the center, one red and one blue. The carvings were filled with strange patterns, imperceptibly exuding a noble aura.

There were two ponds on either side of the cave, one red and one blue. The red was thick like blood, while the blue was sparkling and translucent like crystals.

Black Snake slowly crawled to the red seat with great difficulty. The red eyes of the man on his chest flashed and the blood-red seat suddenly emitted a blood-red glow as it sucked Black Snake away.

As the blood-red light dispersed, the figure of the black snake was finally revealed.

At this moment, the black snake was no longer the figure of a snake, but half its human form. It sat upright on the red seat, and its blood-red eyes had already disappeared, leaving behind only the cold, blade-like pupils.

One hand was elegantly placed on the chair, while the other leg was casually placed on it. It gave off a feeling of being ready to explode at any moment. Behind the chair was a tail covered with bone spikes.

"Human friend, do you know the oath of life?"

The black snake used its black-scaled hands to support half of its face as it spoke indifferently.

"A lifeblood oath?"

Lin Yu looked at the black python with some suspicion. Seeing the other party's serious expression, he shook his head.

"An oath to the life of the heavens and earth can be said to be a type of rule of the heavens and earth, a commandment. As long as the oath to the life of the heavens and earth is sworn, it cannot be broken!"

The snake's eyes were full of seriousness, and also carried a sense of reverence.

"And if someone goes against it?"

"Die."

Lin Yu looked at the black python silently, then quietly took a step back. On the second step, he stopped and stood at his original position, quietly looking at the black python.

"Don't worry, I won't let you do anything dangerous. It's just that I need a promise from you. As compensation, you can obtain my legacy, and split the mountains and seas with ease. "

Black Snake indifferently looked at Lin Yu, not because he was dissatisfied with his defense, and from start to finish, maintained a calm and indifferent attitude, as if it was natural.

"I have two conditions. One, I cannot die in the Thousand Goblins Domain. Two, my actions and actions are not under your control. "

Since he had already decided to leave the Thousand Goblins Domain, Lin Yu naturally knew that the price of trading with them would not be so simple.

"Of course!"

Black Snake answered as if it was right and proper, as he looked at Lin Yu with a more appreciative expression: "If you didn't mention this condition, I might have directly swallowed you. After all, there is no one who doesn't want to be free. If you don't want to talk about it, you can either use your slave nature. I don't like it. It's either because I don't want to complete the mission, break my promise the moment I walk out of the swamp, and even strike back, which makes me hate it even more! "

"…"

Lin Yu suddenly felt an endless coldness, killing intent, and no hesitation.

He didn't know if cooperating with such a vicious beast would be a blessing or a curse … Gulu gulu – A series of bubbles suddenly appeared in the blood pond. From small to big, they grew in number and became a dark red color. After the bubbles were broken through, there were even wisps of blood-red Qi emitting from them.

"Once you enter the Pool of Destiny, you will receive the inheritance I left you."

The black snake pointed at the blood-red pond from afar and said indifferently.

At the same time, he took out a purplish-red egg from somewhere and stroked it for a while with a reluctant look on his face.

Then, he clenched his teeth and raised his hand. The fist-sized egg floated in the air and slowly moved towards Lin Yu: "This is what I want you to do. Carry it along with you and feed it with beast blood.