Achievement system: I am cultivating immortals in the world of martial arts

Hearing what Nie Yin said, Xiaolan smiled and said,

"Okay then, let's give you more credit now so that you can atone for your sins as soon as possible. Later, you have to give me more credit."

"no problem!"

Nie Yin smiled slightly, picked up his dagger, and killed a third-level demon.

He is now very proficient in the use of shadow escape. With the help of the shadow under the collapsed building, Nie Invisible appeared like a ghost, jumping back and forth. He reached the back of the demon in the blink of an eye, and then stabbed the demon with a fierce knife. In the heart of the clan.

The demon was in pain, picked up the big stick in his hand, and slammed it in the back.

The whistling sound in his ears caused Nie Yin's expression to change drastically, and he dodged again and hid in the shadows.

"Damn, these demons are really thick-skinned and thick-skinned. My weapon is too short and I can't even penetrate their hearts."

Nie Yin complained softly.

After Ma Liang heard this, he said to him through the headset,

"Have you forgotten that the armor on our bodies can freely change the form of weapons? Wouldn't it be great if you used those nanoparticles to extend your weapons?"

"It makes sense!"

Nie Yin's eyes lit up, and he immediately extended the armor on his arm to form a sharp blade. He spotted the third-level demon who was furious and could not stop himself and killed him directly.

Nie Yin came to the opponent's back again, picked up the sharp blade, and stabbed the demon into the heart.

"Roar!!!"

The demon roared in pain and struggled desperately, trying to throw Nie Yin down. Nie Yin was afraid that he would not die, so he held on to him and refused to let go, and stabbed Nie Yin hard in the heart.

The demon was stabbed in the heart. After struggling desperately for a few times, he suddenly fell down, pushing Nie Yin down.

Nie Yin was panting and said into the earphone,

"That's it. The last third-level demon has been killed. After we clean up the other demons, we can go back and rest."

However, no one answered his words.

"Xiaolan? Ma Liang?"

Nie Yin had a bad premonition in his heart and hurriedly pushed away the demon corpse pressed against him and looked at his two comrades.

I saw Xiaolan and Ma Liang, both standing there, staring blankly at the sky.

Nie Yin followed their gaze and saw a very large battleship appearing in the sky. That battleship, Nie Yin had seen in the sky above Long Ying, was a small mothership of the Demon Clan.

A small mothership can carry at least a hundred individual battleships and tens of thousands of demon soldiers.

When he saw the small mothership staying in the sky, Nie Yin's reaction was exactly the same as that of Xiaolan Ma Liang.

How could I be so virtuous as to allow you to send a mothership to attack me?

From the mothership, small battleships continued to spray out, carrying the demons and rushing downwards. At the same time, the artillery on the battleships fired at the city below.

Boom boom boom! ! !

Explosions sounded one after another, and the city turned into purgatory.

Nie Yin and the others dodged again and again, looking for opportunities to kill the demons.

At this moment, a beam of light appeared on the high-altitude mothership, and immediately after, four tall demons descended.

The three in front exude an extremely powerful and terrifying aura, while the one in the back has been seen by all three of them.

It's a monster with a pig head and a demon body. It's the same monster that was scared away by Su Na and Qing Lian last time.

When Nie Yin saw this, his pupils shrank in fear, and he quickly shouted into the earphones,

"Asking for help! Chief Wanyang! Asking for help! A demon mothership is here. There are three level 4 and one level 5. The level 5 porcupine is here. The three of us can't defeat it. Please help!"

boom! ! !

A round of artillery fire exploded directly next to Nie Yin, blowing him away.

"Cough cough!"

Nie Yin coughed twice and got up from the ground. He felt a sharp pain in his left ear. When he reached out and touched it, he found that the armor on that side was rotten. The earphone in his ear was also damaged and the ear was bloody and bloody. , the eardrum was punctured, and the left ear was directly deafened.

He doesn't have time to deal with this now, and he doesn't know if his deafness can be recovered, but fortunately he still has his right ear that can be used to hear sounds.

"Nie Yin! Run!"

Amidst the roar of the explosion, Nie faintly heard Xiaolan's shouts,

"Nie Yin, run quickly, we can't run away, you move quickly, keep running, run to the east, every one you can run away from!"

"Xiao Lan?"

Nie Yin looked around, it was all filled with gunpowder smoke and he couldn't see where Xiaolan and Ma Liang were.

Suddenly, a sense of crisis came to mind, and Nie Yin cast the Shadow Escape Technique without hesitation. He didn't even have time to set the jumping point before he cast it directly.

In this case, where to jump is completely random.

Just as Nie Yin jumped away, the place where he was standing was hit hard by a fourth-level demon, causing the ground to collapse.

"where is this?"

Nie Yin looked around at the dark surroundings, unable to see his fingers. He quickly concentrated his attention, filled his eyeballs with negative energy, activated his dark attribute talent, and then he could see the surrounding scenes clearly.

This is an ancient tomb!

An ancient tomb buried underground at an unknown depth.

The reason why Nie Yin knew this was an ancient tomb was because he saw a stone coffin in the center of the square hall. The coffin was covered with dust and he didn't know what age it was.

Nie Yin looked around curiously and saw a mural directly south of the coffin.

On the mural, there is a city carved, and then, the city extends a road to the southwest, and it is unknown how far it extends.

After walking around for a long time, Nie Yin saw a triangular pattern. Inside the triangular pattern, there was a book carved in it.

"What is this? A treasure map?"

Nie Yin looked at the book carefully. There was a skull on the engraved cover, and the skull's eyes were emitting a long black light.

With his dark talent, Nie Yin felt the dark energy in the black light, and felt that the appearance of the book was extremely weird, dark, terrifying, and evil!

As if he were the lord of all darkness.

Suddenly, a bold idea suddenly appeared in Nie Yin's mind.

"Could this be the legendary Dark God Book? I found the treasure map of the Dark God Book?"

Nie Yin hurriedly looked at the wall and memorized all the routes firmly in his mind.

If I could go back and really find the Book of Darkness, it would be a huge achievement!

At this moment, there was another violent explosion from above. Immediately afterwards, the entire tomb collapsed, the roof collapsed, the walls collapsed instantly, and the treasure map was completely damaged.

Seeing this, Nie Yin had no time to hesitate and immediately used the shadow escape technique again, dodged to the top position and returned to the ground.