A few minutes later, outside the ruins, a skeleton with a black 'nail' on its head lay quietly on the ground. To prevent the bones from coming loose, they are always kept with seals.

In fact, the sealing is not only to maintain the integrity of the bones, but also to have a problem that the Ocean Group knows, that is, to defend against viruses and so on.

For the exploration of this kind of ruins, it is all about being careful. Ordinary viruses and bacteria naturally can't help cultivators, but what if they mutate? Don't forget, this is a relic of an advanced civilization!

Zhou Xueyao squatted down, looked at the black 'nails', frowned slightly, and said for sure after a while: "It's indeed nails." There are also traces of growth characteristic of nails. ”

There are longitudinal growth marks on the nails. No one's nails are as smooth as a mirror.

Although many of the features of this mutated nail have changed, some basic features can still be distinguished. Zhou Xueyao, as the first sister of the medical industry of Dayang Group, is also a master of the transformation period, and she is naturally no stranger to the human body.

By the way, for cultivators, if they want to understand the human body, they don't need to dissect, it is enough to directly scan the body of ordinary people with the Yuan Shen. The body of ordinary people can't stop the peep of the primordial god in the god transformation period at all.

Hearing that Zhou Xueyao was sure that this was a nail, everyone's complexion changed a little.

Murong Shan struck the black nails with a flying sword, but there was a sonorous sound, and even sparks came out. As a result, the nails were not damaged at all, but a little scratch appeared on Murong Shan's flying sword.

"Shhh...... It's so hard! This is actually a human fingernail, how is it possible!" Murong Shan was shocked. However, the surrounding masters were also shocked and inexplicable.

Lou Hongyu said slowly: "I only saw mutated demon beasts before, maybe there are mutated people here, but I have never seen it!"

No one could answer the question for the time being, but everyone's eyes were on the slender black 'nails'.

Zhou Xueyao tapped lightly and said thoughtfully: "The density of this nail is almost 7 points, which is almost close to the density of iron." ”

Nan Xiaoyun waited beside him for a long time, and finally spoke: "Madam, what should we pay attention to in our next exploration?"

Zhou Xueyao thought for a while, "Bless yourself for defense, don't breathe the air inside, and pay attention to observe at any time." Remember you have the power of two eyes, right?"

"Yes, I practiced the sparkling golden eyes of "Zhou Tiangong". ”

"Then you pay attention. The supernatural powers of the sparkling golden eyes can see filthy gas, evil energy, etc. If poison gas is mixed in the air, you will see some strange light colors. ”

Speaking of this, Zhou Xueyao suddenly turned around and said, "Five more cultivators will enter the exploration together." Stay safe. ”

Then Murong Shan also came forward and arranged everyone's battle formation.

Nan Xiaoyun and the others entered the ruins again and explored carefully. However, after all, he was a master of the law level, and no matter how careful and slow he was, it only took two days to circle the ruins close to the city wall.

But the things that were discovered made everyone feel a little uneasy in their hearts.

Bones and the like are commonplace, and there are many things that resemble fingernails. Not only nails were found, but also ...... Hair, if that thing can be called hair.

It was a wire-like thing, the same black, metallic texture, but the structure was the same as that of a human hair, slightly twisted.

In addition, I did find written materials, but contrary to what I expected, they were some words written on iron sheets and on the surface of buildings, and some of them have been preserved.

Most of these things belong to technical terms, factory production terms. Such as temperature control, safety precautions, operating procedures, some slogans, etc.

The discovery of these things should be of little use. However, there is a problem that you can find in these terms. This city, buried underground, is by no means a place to live, but a factory, and even a research base!

"Research base, isn't that happening?" a glint appeared in the eyes of many people. You all too know the value of a research base.

However, Nan Xiaoyun poured cold water on everyone: "If it is a research base, I am afraid that it will be more dangerous." I'm getting chills right now. The skeletons of the law phase level found in this circle exceeded three hundred. Have you ever thought about the danger in the center of this research base?"

The corpses of more than three hundred law phases, this alone is enough to make everyone's hearts chill slightly. Although more than 100,000 years have passed, everyone still seems to be able to feel the tragic scene of ancient times.

One by one, the masters of the law phase level are hung on the wall like broken dolls, and at first glance they are the result of the kind of battle that has no power to fight back.

Zhou Xueyao spoke again: "Based on the current exploration situation, we can basically conclude that this is a research base, and it is very likely to be a ...... A life and medical research base, or even a human body research base at all.

The study of building a steel city with a radius of 20 kilometers is by no means simple. I'm worried that there's something good in there, but something even more dangerous.

This kind of dangerous thing does not exclude viruses, poisonous gases, and elusive soul influence methods that threaten all cultivators, and it is not even excluded that there are robots that can move and even transform people!

We don't know much about the advanced civilization of antiquity at the moment, but at least we can know that we are still far behind. So the projects that have been so careful and more dangerous in ancient times, we still have to be careful.

I recommend continuing the exploration, but still don't be presumptuous. We need to peel a cabbage like a cabbage, and push it inside one layer at a time.

If we don't do it, it will take ten days if it doesn't work in one day, and a month if it doesn't work in ten days. ”

The second exploration was a replacement. But the second wave of people has only been exploring for half a day, and they have dug a distance of about 5 kilometers, and everyone is stunned.

A monster appeared in front of everyone.

It was a three-headed, six-armed ...... Iron Man, 'it' is covered in iron gray, even if it is half-kneeling on the ground, it is more than three meters high, and its muscles are like the roots of an old tree. Although it has been buried underground for more than 100,000 years, there is almost no trace of time.

The two arms in front are about two meters long, like iron pillars propped up on the ground, and the right arm holds a long knife about two meters long, which is commonly called Miao Dao, but it is elongated.

The left hand was empty, but the nail was three inches long, swarthy, triangular steel, and the tip was as thin as a knife's edge—the same as previously found, only shorter.

Each of the four hands on the back has black nails of varying lengths, and one of them also holds a skull, and the index and middle fingers are thrown directly above the skull. On the other hand, he also grasped the bones of an arm.

The battle posture of ancient times seems to be frozen here. It's just that the bones on his hands exude a luster like white jade, and at first glance they are the bones of the law phase.

An unimaginable aura of danger permeated from his body, making even the masters of the Law Physiognomy tremble.

There are still a lot of bones around this monster. The bones were fragmented and haphazardly stacked on top of each other. You can imagine what the scene looked like more than 100,000 years ago, it was definitely a scene in the world of Shura, with ruins piled up.

"This thing...... Dead, right?" General Liu Jingming of the Land of Qixia looked at this monster in horror.

Gu Changfeng, an elder from the Tiandu Sect next to him, swallowed a mouthful of saliva and said with a little stammering: "It should be, more than 100,000 years." You look at the monster and there are several holes in its chest. ”

Everyone was so surprised that they didn't even look closely at this monster. But after all, he is a master, and he gradually reacts.

Liu Jingming took a closer look. There was not the slightest hint of life on the monster, it looked like a steel sculpture. There is a finger-sized hole in the center of the eyebrows at the front of the head, which is transparent from front to back.

The monster's eyes were still open, but its face was hideous, but there seemed to be some kind of fear of death in the hideousness.

The eyes are like black gems, even if they have no lifeless brilliance, they are exposed and flickering. It's just that there is a kind of savagery, madness, and unwillingness that seems to be at the end of his life in these eyes.

There are still several holes in his body, but Liu Jingming concluded that the fatal injury should be the center of the eyebrows.

Confirming that the monster was indeed dead, Liu Jingming stepped forward to take a closer look. This monster is countless times harder than steel, and Liu Jingming struck it with a flying sword made of nano-refined iron, but it was full of sparks, and it could hardly cause any damage. On the contrary, the flying sword actually rolled the blade!

Liu Jingming looked at his flying sword and was speechless.

But looking at the wounds on the monster's body again, Liu Jingming was extremely vigilant. This monster is so powerful, killing a master of the law is as easy as crushing an ant, and the speed of movement must be as fast as lightning. But it was completely pierced through the eyebrows by some kind of attack.

What kind of attack is that?

Liu Jingming took a deep breath and reached out to touch the wound on the monster's body, the tentacles were cold, and it was completely like a steel sculpture. The wound was extremely smooth, as if it had been finely polished.

Seeing that Liu Jingming had done it, everyone stepped forward to visit.

More than 100,000 years have passed, and the state of this monster is as good as yesterday. If it weren't for the fact that there were some uncleaned, compacted mud and sandstone, I am afraid that it would be regarded as a sculpture.

For more than 100,000 years, it has maintained this posture until now.

"This knife is good!" A master next to him fell in love with the two-meter-long Miao knife in the monster's hand. Unfortunately, this guy can't even break the monster's fingers.

"Holy!" the master finally gave up helplessly. His fingers were so swollen that he couldn't even break the monster's fingers.

Liu Jingming took a deep breath, "This monster is stronger than the top spirit treasure all over its body. So how did these wounds appear?"

"Not a rail cannon?" Gu Changfeng asked tentatively.

"The wounds of the rail cannon seem to be smooth, but if you touch them closely, you will find that they are all fine burrs. And the wound caused by the rail cannon will show trumpet-like radiation.

And this wound is generally thick before and after, and smooth as a mirror. This must be a means of attack that we don't know about!"

Everyone checked for a moment and made sure that the monster was not in danger, so they moved the monster out and asked Zhou Xueyao to check it.