Hardcore crisis

I searched for more than a dozen similar prismatic crystals, but none of them were as amazing as the ruins in front of me.

Half an hour later, when Lu Yuan stood on the sand dune and looked down, more than ten kilometers away, in the desert Gobi, there was a building that was nearly half buried by sand and dust. The exposed part was close to Buildings more than a hundred meters high and several thousand meters long appeared in front of him.

The surface area of ​​this planet is about the same as that of the Earth. Lu Yuan only searched and found the strong reflection of prismatic crystals, but he did not expect that this planet would have such distinctive artificial structures.

"...It seems that there really are extraterrestrial civilizations."

Lu Yuan looked solemn. What does the existence of extraterrestrial civilization mean? It explains that the unknown organisms on Mars and the Earth probably came to the Earth hundreds or tens of millions of years ago. So what was their purpose of coming to the Earth in the first place? What happened to the earth that led to him being sealed underground and in the heart of the mountain?

There are too many questions that are unknown. Unless he really takes a time machine and spends countless hours going into the past years to find out the truth, these truths may be buried in the long river of time.

But maybe...he could find something here.

Lu Yuan took a step forward and appeared more than ten kilometers away in an instant.

"Pah chi."

After landing on the dry sand, Lu Yuan raised his head slightly. After a closer look, he found that this long-abandoned building was actually made of metal. I don't know if it was because of the special alloy or the moisture here. Too little. Apart from being stained with a lot of sand and dust, these metal shells did not appear rusty.

There was a huge hole in front of him, about ten meters in diameter. Under the dim sunlight, it was pitch black inside and he didn't know what was waiting for him.

Lu Yuan's eyes quickly turned pure black. For just a moment, he frowned, and his eyes returned to normal again.

He stepped forward without hesitation. The dark environment did not have much impact on him. On the contrary, the complex structure, beams, and worn out cables inside the building made Lu Yuan realize that the building in front of him was at least Built by a civilization no less than that of Earth in the 21st century, the size of this building alone requires no less metal than a dozen USS Ford aircraft carriers.

How could this be produced by a backward civilization?

"It shouldn't have been abandoned for too long..."

Lu Yuan glanced around and made a rough estimate in his mind. This building would not have been abandoned for more than fifteen years. The reason why he said this was not just the old and new appearance of the building, but also...

"Bang bang bang..."

Suddenly there was a huge sound of metal tapping, which seemed a bit harsh in this silent environment. It seemed that Lu Yuan was not given much time to react. Two red lights flickered in the darkness, like a demon peeping from hell. Climbed out.

For normal humans, almost nothing can be seen clearly in an environment without light. Unfortunately, it didn't work for Lu Yuan at this time. His pupils dilated for a while, and he was able to take in all the faint light, which was enough. See clearly what is peeking in the dark.

"Huh?"

While standing outside, Lu Yuan noticed that there was an abnormal heat source signal inside the building, but he did not know what it was. When these heat source signals came out at this moment, he was surprised to see, Three steel spiders with ferocious appearances, like magnified a hundred times, quickly crawled over with their sharp and slender metal feet, surrounding him.

Nearly four meters in height, each metal limb is more than five meters long, especially the pair of steel chelicerae at the front, which are neatly lined with sharp saw teeth. Just taking a look at them can't help but frighten people. Trembling, not to mention the four dark gun barrels exposed in front of the chest plate.

This is not a natural creature, it is simply a man-made... weapon.

This shape made Lu Yuan overwhelmed with curiosity. Are there spider-like arthropods on extraterrestrial planets?

No, maybe it is not an imitation of a spider, but a multi-legged jointed limb structure that can provide good stability and balance, and under optimized program algorithms, it can show better flexibility on complex terrain.

The same goes for the gun barrel.

In the history of weapons development, when entering the stage of thermal weapons, whether gunpowder weapons or kinetic electromagnetic weapons are developed, a gun barrel that can provide accurate ballistics is an inevitable technology tree that cannot be avoided.

However, this flexible mechanical spider is beyond the reach of Earth's current technology.

Just as Lu Yuan was deep in thought, the three mechanical steel spiders surrounding him suddenly made a sharp sound that reached his ears.

"Hey, is this... a high-frequency sound?"

Most of the normal sounds used by humans for communication are between 200 Hz and 8000 Hz. As humans get older, it becomes more difficult to distinguish high-frequency sounds above 8000 Hz.

This high-frequency sound suddenly emitted from the three mechanical steel spiders was almost inaudible to normal human ears, but it was sharp to the point of harshness in Lu Yuan's ears, and he was immediately aware of the high-frequency sound in this high-frequency sound. Similar to the sentence segmentation and logic of human language.

There is a clear distinction between human language and animal language. That is, abstract thinking and pronunciation have very clear characteristics in the syllables, words, phrases, and sentences produced by the sound. This is incomparable to the sounds of animals.

The high-frequency sounds emitted by these mechanical spiders were not without any regular noise. This made Lu Yuan immediately realize that the other party might be having a conversation with him, or trying to communicate?

However, when neither party understands the other party's language rules, this kind of communication will undoubtedly fail.

However, before Lu Yuan could think further, the harsh high-frequency sound suddenly dropped, and after a while it dropped to about 2000 Hz, which was already within the range of sounds that humans can hear and communicate with normally.

“minkdiedieyk…”

Of course I still don’t understand.

Lu Yuan shook his head and gestured with his hands that he didn't understand. As soon as he made such an action, he burst into laughter. The action of shaking his head on the earth may have different meanings among different peoples, let alone on an extraterrestrial planet?

But having said that, for discovering active extraterrestrial life forms so quickly, should he be said to have good luck or bad luck?

This exchange seems to have no meaning.

I don't know if these three mechanical steel spiders were also aware of this problem. Soon, they stopped making unexplained sounds, but they did not leave and still surrounded Lu Yuan in the center.

This is troublesome. Since the other party has made a sound, it means that the other party has not evolved to the level of using brain waves to communicate, and still needs sound as an aid to communication. But the problem is that without comparison of language and text, in order to understand what the other party said What do you mean, that is almost an impossible task.

In particular, the pronunciation organs of extraterrestrial life forms are different from those of humans, which is even more problematic.

Although humans do not understand the languages ​​of various ethnic groups, due to the same pronunciation organs, similar single consonants will appear in the sounds. However, if even the pronunciation organs are different, then the sounds will be completely different.

Without being able to communicate, there seems to be no point in continuing to stay here.

And the other party doesn't seem friendly either.

Lu Yuan suddenly felt something in his heart. He turned around and saw a dozen people...should we say they were people?

This, it seems, cannot be described by humans.

No one has skin similar to snake scales, no one has four pairs of eyes on their head, no normal nose and other respiratory organs, no hair, and two pairs of wings on their back. I don’t know. Can it be used for flying? However, the densely packed tentacle-like organs growing on the chest looked very flexible, floating here and there as they walked.

By the way, they walk on several pairs of jointed limbs, and they can climb quickly by stepping on the ground. From Lu Yuan's point of view, they arrive at a speed that is about as fast as a normal person can trot.

Is this extraterrestrial life?