Alien Relic Hunter.

Chapter 290: Underground Plaza
However, just in case, Ke Lan still made second-hand preparations—he folded his winter clothes into a ball and tied them to his ankles with ropes—although in the narrow cave in front of him, he couldn’t He wears heavy winter clothing, but if the passage behind suddenly widens, this cold clothing that drags behind his feet will come in handy.

"Be careful, if something is wrong, come back quickly." Layton said worriedly, "I always feel—"

"Stop!" Hearing that Layton's "crow's mouth" was about to speak again, Ke Lan hurriedly stopped him, "Just wait here for me, if I don't come back within 15 minutes, it means I'm here There's a special find inside... If I'm not back in two hours, don't wait."

After finishing speaking, Ke Lan bit the flashlight in his mouth, lay down on his stomach, and crawled into the cave with hands and feet.

The inner wall of the cave is very smooth, as if it had been finely polished with polishing paste, which made Ke Lan quite strenuous when crawling, and his elbows on the ground would slip from time to time. Only crawled a distance of less than ten meters.

The only good news is that the air quality in the cave is not bad, the oxygen content is not low, no toxic and harmful gases were detected, and there is no particularly unpleasant smell, only a faint earthy smell permeates it.

"Could this cave be the lair of that thing?" Ke Lan thought to himself, but at this time, he had completely lost the trace of the pink meat slime—fortunately, there was only one passage in this cave, and there was no branch, so it fell down. Don't have to worry about losing track.

Noisy electrical sounds kept coming from the earphones. Ke Lan tried to use the short-distance radio to call the team channel twice, but did not get any response... Obviously, there is a strong interference field in this cave, even if they bring The survey robot cannot be remotely controlled by radio.

After crawling for nearly [-] meters, the inside of the cave actually became wider. The diameter of the cave instantly changed from less than half a meter to more than two meters, and the cave walls were no longer as smooth as before, and became rough. gravel material.

Although it is still cramped and cramped, at least Ke Lan can stand up in winter clothes, and the risk of hypothermia is instantly eliminated. Moreover, the physical exertion of walking is much less than that of crawling.

Ke Lan turned his head to look at the small cave, and he noticed that there was a circle of sandstone around the cave entrance showing a glass-like texture—he originally thought that the inner wall of the cave would become so smooth because "meat mang" often filled it The reason for crawling, but now it seems that it is not the reason.

The rock formations around the inside of the cave at the front end have undergone a glass transition, which shows that the cave did not exist in the first place, but was "burned" by something extremely hot later.

To vitrify rocks, the temperature must be at least [-] degrees. With the level of human technology, it is not difficult to obtain this temperature. It is difficult to precisely control such a high-temperature object so that it can be absorbed by the rock mass. A hole more than [-] meters deep and almost the same diameter at the front and back is drilled inside, without damaging the structure of the rock mass itself—as far as Ke Lan knows, apart from the research institute, the engineering companies on the Ark that can do this are absolutely There will be no more than five.

But in the case of Alpha civilization, this kind of thing is not worth making a fuss about.

At this moment, a burst of noisy gunshots suddenly echoed in the cave!
Ke Lan's first reaction was to lie down on the ground immediately, but soon he realized that these gunshots were not real - just like the voices he heard in the abyss of the sea, they all came from his mind hallucinations within.

"Gunshots? Why are there gunshots here?"

Ke Lan got up from the ground with some doubts. For so many years, the relic hunters on the Ark have indeed unearthed individual weapons of the Alpha civilization in the ruins everywhere... But the problem is that the individual soldiers of the Alpha civilization The vast majority of weapons are energy weapons, and the few that use physical ammunition are also kinetic energy weapons... And the gunshots are clearly made by gunpowder guns. Ke Lan can even distinguish the "01 Type" assault rifle from some The sound of gunshots characteristic of older models.

This is not the first time he heard this kind of "illusion", but in the past, when this kind of "illusion" appeared, it was all information related to the Alpha civilization, and there had never been any content related to the "alien species" of human beings. .

This is the first time.

"Strange... If we are still in the dream world, this kind of thing is not difficult to understand..." Ke Lan said to himself, "And why do you hear gunshots here? Is it to meet some special needs? The 'triggering conditions'? Or...is it the gunshots of those mercenaries before, which were preserved by this 'cave' for some reason?"

Ke Lan read a story on the Internet. It said that in a certain valley on the earth, whenever there was thunder and rain, the sound of war horses neighing and weapons colliding would echo in the valley, as if there were two As if an army of ghosts were fighting in the valley, the residents living near the valley were terrified by it. They called this phenomenon "the crossing of ghost soldiers". This rumor became more and more bizarre, and even many experts and researchers All lead to this place.

After surveying and investigation by experts, the source of the sound was basically determined: First, because there are a lot of weathered rocks in the valley, the whistling sound of high-speed airflow passing through the rock pores was misinterpreted as the neighing of war horses. Sound; the second is that the rock structure in the valley is dominated by quartz ore and magnetite, coupled with the static electricity generated during thunderstorms, the valley has become a huge "recorder", recording all kinds of noisy sounds .

Naturally, the effect of this kind of recording using minerals and lightning cannot be compared with a real tape recorder. There will be serious distortion, and the distorted sound will sound even weirder. On the contrary, it is in line with the ancient battlefield and undead in people's minds. The imagination of the army.

Does this cave also have a similar recording function?
As for the source of the sound, the mercenary also mentioned that they poured a lot of ammunition when they faced the meat mud that suddenly emerged from the deep ditch. At that time, it was "recorded" by this cave.

Ke Lan continued to walk into the cave, and within a short distance, there was a nearly ninety-degree right-angle turn in the cave. After turning this corner, an empty underground square came into Ke Lan's field of vision !
(End of this chapter)