Black Feather remembered the legends of the ancient monster battles: they would fight for months until one of them collapsed from exhaustion. Of course, by that time, the terrain of an area had long been changed by the aftermath of their battle.

"But in that case, when will we be able to reach the East China Sea, it's hard to say that I won't miss Boss Ling's business. It seems that I still need to continue to improve my strength and become stronger before I can devour this demon beast!"

The king of the forest in his peak state knocked the demon behind Black Feather to the ground in three or five strokes, and the demon barely supported the body of the king of the forest with both hands, but it couldn't resist its frantic fist.

The minions on the cliff, seeing that the leader was more dominant, all ran out of the cave to cheer, and they crowded on the slopes of the mountains, barking and shouting with joy.

Ling Xiao's tears were even more nervous, ready to rush into the battlefield to save Hei Yu when he encountered a crisis.

Black Feather was in a cloud of billowing dust, supporting the demon's body, and because the demon was hit hard, his body was also in pain at the same time, and his mana was also losing a lot of power, and blood was spilling from the corners of his mouth.

The demon's arm couldn't even break free from the Forest King's grasp, let alone roll over and sit up, and at this time, Black Feather and the Forest King exchanged injuries for injuries, and their fists smashed at each other alternately.

"I'm really going to try the fourth seal......"

The fourth seal was something that Black Feather had never touched before. With each unlocking of the seal, the load on his body increased, and the sudden increase in dark power was also accompanied by a lot of uncontrollability, greatly increasing the danger of rampage.

In normal times, he would never dare to try, but now, the destruction forest is very remote, inaccessible, and very far away from the surrounding towns and villages, and his only teammate, Ling Xiaoxi, is also in a safe place. So, he's going to give it a try.

The staff was already clenched in his hand, black light swirling around the staff, and the flame-shaped seal on the palm of his right hand lit up, emitting a familiar scorching sting.

"The Fourth Seal ......"

Black Feather sank into consciousness, and the moment the seal was opened, he suddenly saw a pair of eyes of another person, looking at him from the void, although it was only a flash, but it startled Black Feather.

In a flash, he was already standing in a no-man's land at this time. Under his feet was the dark and quiet water, and in front of him was another naked man with exactly the same appearance as himself, with no expression on his pale face.

Kuroba was familiar with this place and seemed to have seen this person.

"Who are you?" he asked.

"I am you. ”

The man across from him replied, his voice quiet.

Black Feather clearly saw that behind that person, there was a huge flame-shaped mark hanging, and at this time, four-tenths of the flame mark had gradually cooled into ashes.

He had a strange premonition that he didn't know what would happen when the flame mark was completely extinguished.

At this moment, the sharp pain all over his body suddenly pulled Black Feather back from the world in his mind, and returned to the battlefield where he confronted the King of the Forest.

The smoke and dust all around him were filled with smoke, and the rising wind blew the leaves on his face, and the unbearable pain in his whole body made him feel like his muscles and bones were broken, and the pain made him unable to move.

"That's what it is...... The power of the Fourth Seal?"

He tried to hook his fingers, but he couldn't do anything, his body stiffened, every muscle was tensed with abundant strength, and his veins protruded, hard as stones, shining black and red.

"Could it be...... Is it because the dark power that erupted this time is too strong for the body to bear?"

He was a little scared, gritted his teeth, and the black wind rolled up by the dark power overflowed from his body in bursts.

He slowly squatted down, supported himself on the ground with his staff, and saw a few drops of blood dripping on the back of his hand, only to find that his mouth was full of bloody taste, and the internal organs in his body were all colic violently, and he could clearly feel that the dark blood was rushing in his body, making him crazy.

Ling Xiao stood on the cliff in the distance, and saw that the king of the forest was still blindly beating the demon who had fallen to the ground.

She was hesitating to help, but she saw a terrifying black wind suddenly rise, and the dark power soared into the sky, like a spinning tornado, condensing into a whirlpool in the sky, obscuring the brilliance of the stars and moon in the night sky.

This strange aura was unlike any pressure she had felt before, and she knew that it was Black Feather who had opened a new seal. The hairy apes around them were also too frightened to move, and the instinct of the animals made them feel dangerous, and they immediately turned around and fled and hid back in the hole.

The fourth seal, catalyzed by the incomparably powerful force, the demon form behind the black feather also changed, the demon's translucent body was filled with dark aura, the demon gradually condensed, and there was a black mist like fire, steaming up along its back, and its eyes flashed scarlet light.

When the demon stood up from the ground again, he punched the king of the forest, knocking it away. The power of this punch directly caused it to crash into the cliff 50 meters away behind it, and the huge impact force caused the cliff wall to collapse, cracks spread, and rocks rolled and fell.

The safe area where Ling Xiaotear was located was also shaken by the collapse of the rocks under her feet, she stood unsteadily, grabbed the vines and wild grass next to her in a panic, and hurriedly jumped onto the uncollapsed stones next to her.

The demon's power was still increasing dramatically, constantly sucking in the dark energy in the air around him, and Black Feather's body was also suffering from severe pain due to overload, the green tendons on his arms burst out, his skin cracked, blood dripping from his mouth and nose, and his vision gradually turned scarlet.

Maybe it's because his human body can't withstand this power after all. His legs trembled, his body unconscious, and his consciousness blurred.

The last image in front of him was frozen in the moment when the king of the forest struggled to get up from the cliff, and then, his eyelids drooped heavily, his consciousness completely disappeared, and all that was left in his mind was to kill according to his instincts......

The demon roared once more and charged towards the king of the forest, running in front of him in a few steps, shaking the ground with his footsteps. The claws then landed on the head of the King of the Forest, grabbing his head and slamming it into the cliff.

There was a loud "boom", the mountain cracked, and its head and shoulders completely crashed into the mountain, dripping with blood.

When the little hairy apes saw this, they ran away desperately. The demon had lost its mind, and it pulled out the head of the king of the forest again, dragging its huge body, and crashed into the cliff next to it, crushing all the small minions on this side of the mountain to death.

Blood smeared the cliffs, not a single one was spared, and soon the rubble was a mess of corpses and rivers of blood.

Even the little hairy apes who passed by the foot of the mountain and fled for their lives were smashed into meatloaf by a palm raised by the demon or by a boulder falling from the mountain.