Coming to the door, Du Mu quickly took out his card and pressed it on the electronic screen on the side.

Immediately I heard a dripping sound, and after a few seconds, the door opened with a snort, and a faint white mist drifted out of the door.

Du Mu made a defensive gesture while concentrating and looking in.

As far as the eye can see, there is a spacious hall.

The hall was tall and cylindrical, and the floor and the surrounding walls seemed to be made of metal, round and unified, with a faint silver sheen, and there was not a single crack in sight.

The blood flowed down the smooth ground to Du Mu's feet, who took a slight step to the side, crossing the blood and entering the hall.

The bodies of more than a dozen kobold and black leaf members were scattered on the ground, Du Mu checked it and found that there were only three black leaf members among them, and the rest were all kobold corpses.

"There are seven left!" he murmured, his gaze following the blood-colored footprints on the ground before landing on the open door opposite.

Getting up and walking to the door, Du Mu found that there was another passage behind the door, and after coming to the end, an identical hall appeared in front of him.

This time, there were fewer corpses in the hall, only nine, two of which belonged to members of the Kuroye, and the rest were all kobolds.

"There are five left!"

Stepping into the open door, Du Mu walked to the end of the passage, and when he looked down, a downward metal staircase came into his eyes.

After listening for a moment, there was a dead silence below, and there was no sound at all.

Frowning and thinking for a while, Du Mu took out a navy corporal figure, summoned it, and then ordered him to go down first, while he followed four or five steps behind.

There were less than twenty steps of stairs, and the sergeant quickly walked through and entered the entrance below, and in an instant, there was a shouting and questioning from inside, followed by the sound of breaking through the air.

The moment the voice sounded, Du Mu suddenly sped up, crossed the remaining steps like a vigorous cheetah, and jumped into his mouth.

As soon as he entered, he immediately looked up and quickly glanced around, taking in the situation inside.

It appears to be a basement.

Unlike the high-tech metal hall above, everything in the basement in front of you is made of stone, which has a quaint atmosphere.

In the center of the basement, a three-meter-high square stone platform stands straight, with piles of white bones on it, faintly built in the shape of a pyramid, and at the top of the tower, a gray mist is suspended out of thin air, constantly surging and shrinking.

The five Kuroji members were scattered throughout the basement, and two of the two-star warriors were closest to the platform, standing not far from the bottom.

One of the remaining three members of the Kuroji was holding the Navy corporal by the neck with a hideous expression, his mouth open and closed, as if he was asking something.

The other two stood seven or eight meters away with weapons in their hands, looking at the corporal with a look of disbelief.

Du Mu's movements from the entrance were so swift and abrupt that except for the two two-star martial artists, the other three didn't have time to react at all, and they were approached by him.

The first to suffer was the Kuroba member who choked the admiral.

Out of the corner of his eye, he caught a glimpse of an afterimage approaching rapidly, and as soon as a look of shock appeared on his face, he felt a chill in his throat, and in the next second, a large amount of crimson blood gushed out.

Poof!

The corpse slowly fell to the ground.

At this time, Du Mu had already cast a flash piercing, like an aurora tearing through the void, swept in front of the other two in the blink of an eye, and stabbed at one of them with a sword.

The man was so frightened that he couldn't dodge, so he could only grit his teeth and swing his sword to slash away, trying to block Du Mu's attack.

However, the moment the two long swords touched, the powerful power from the blade made his face change suddenly, and the long sword trembled, and flew out directly, and he was also pierced in the throat by the sword light that followed, and his face died with fear and unwillingness.

Swish!

But it was the last single-leaf level member, and when Du Mu attacked his companion, he slashed his neck with a sword.

"Give me death!"

The man roared angrily, and the offensive was unstoppable, and when he saw that he was about to hit the opponent's vital point, a palm stretched out in the horizontal ground and blocked the front.

While!

The aftermath of a metal clash rang out, and the attacking members of the Night stared at the palm of his sword in disbelief, not a single white mark on it.

Just when he was stunned, the palm of his hand clenched his fist violently and raised his index finger, and pointed at him like lightning, and it sharply differentiated into countless afterimages halfway, wrapped in bursts of violent wind, and suddenly attacked as fiercely as a bullet.

He hurriedly raised his palm, trying to block the attack, but after a snorting sound, more than a dozen blood holes appeared in his palm, chest, and throat, and blood flowed out of them.

His pupils widened, his eyes were full of confusion, his body pounced, and he fell backwards to the ground.

It wasn't until this moment that the bulging muscles in Du Mu's right upper arm slowly deflated like a popped balloon.

In less than five seconds, three single-leaf level members fell to death, and at this time, the two two-star martial artists rushed to the front, and when they saw this scene, they couldn't help but be stunned and roared in anger.

"Damn it!"

The two of them were full of anger, the sword light flew between them, and at the same time, they attacked Du Mu with all their strength, and the momentum was terrifying.

However, Du Mu only smiled coldly, let go of his palm, and let the black sword fall to the ground, and when he held it again, his palm had already been replaced by a dazzling white and gorgeous long sword.

Darkchaser!

The long sword was in his hand, and he squatted slightly, posing in a starting pose of shrinking his body and hiding the sword.

In the next moment, a dazzling, domineering sword light suddenly lit up, and the two two-star warriors who rushed towards him let out a ghost-like howl in an instant, and the whole person broke into two pieces at the waist, and fell to the ground and wailed wildly.

Du Mu took a step forward, and stabbed straight down with two diagonal blows, and the world was instantly clear.

Call!

Exhaling heavily, Du Mu took the Dark Chaser back into the dimensional house and picked up the black sword.

The battle just now, although it was short, almost used all of his strength, and it consumed a lot of physical strength and mental energy.

Looking around, there was not a single living Kuroji member in the basement.

Seeing this, Du Mu set his eyes on the gray mist on the platform.

According to the guidance of the battle pointers, the key to his strength falls on the card and the key, and the latter is the key to unlock this suspected ruin.

Along the way, however, he found nothing out of the ordinary except for the lizard-trolls and kobolds, and the mass of things.

The first two obviously have little to do with his improvement in strength, so the only thing that is possible is the gray mist on the platform.

After figuring out the joints between them, Du Mu looked at the gray mist above in confusion.

"How is this thing going to make me stronger?"

He walked around the platform and found a staircase in the rear.

Going up the stairs, Du Mu first used his black sword to sweep the piled white bones under the platform, clearing a clearing, and then stepped on the platform and slowly walked towards the suspended gray mist.

As he approached, the gray mist continued to churn and flow, and nothing changed.

"It's a bit like a fog in a dream, but it's much darker. ”

After hesitating for a few seconds, Du Mu raised his black sword and slowly touched the gray mist, intending to try to see if there was any danger first.

However, the moment the tip of the sword touched the gray mist, the speed of the latter's churning suddenly became several times more violent, and it spread straight up along the blade of the sword.

As soon as Du Mu wanted to let go and retreat, he felt that his palm was cold, and the gray mist had already sunk into his body along the hilt of the sword.

。 m.