The whole building is about 200 meters in diameter and more than 100 meters high, the surface is quite smooth, there are no gaps, and there is no slightest pattern, pattern, or text on it.

Buildings of this magnitude were inconspicuous before the end of the world, and there are many buildings larger and more magnificent than it, but now, here, this island of mutant beasts is rampant and humans are extinct. This building, standing alone in the valley under the cover of the jungle, is particularly abrupt, with a strange and bizarre feeling at night.

Luo Yuan watched quietly for a while, adjusted his breathing, and was about to continue approaching, before he advanced a few hundred meters.

He suddenly felt something strange, it was too quiet here.

It was so quiet that even the insects that were common in the jungle could rarely be heard, and what his ears could hear, if he could discern it in detail, was actually a sound from a farther away, and he suddenly realized that he had not found a single mutant creature since he had approached the building, crawling all the way through.

He couldn't help but feel terrified in his heart, and quickly glanced left and right, and where he saw it, except for the plants, which were normal, there was no trace of other creatures.

"This is by no means normal, is it poison gas, or is it some other means?"

Luo Yuan's heart couldn't help but pound, he didn't dare to be careless, he quickly sank into his body with his will, and carefully examined it, but he didn't find anything unusual, and then, he carefully checked the ground, and there were no corpses here.

He breathed a sigh of relief, gritted his teeth, and moved on.

The stakes are high for this investigation of extraterrestrial civilizations, and if he is so frightened that he returns immediately, even if no one punishes him, he will not be able to pass this level in his heart.

He slowly moved towards the building, dressed in black clothes, which was the best camouflage in the night, he was like a slowly wriggling shadow, all the way without panic or danger, half an hour later, he successfully came to the building more than a thousand meters away.

He stopped, not coming any closer.

At this distance, even in the dark, the building was already clear in his eyes, the smooth surface seemed to glow slightly in the night, and there was no door or window configuration on the surface, he looked around the building, and the result was still the same, it looked like a whole.

The entire building appears to be sealed, without any regular entrances and exits.

However, in this regard, Luo Yuan had long expected that extraterrestrial civilizations are not life on earth after all, their respective planets are different, and the atmospheric pressure and composition content adapted to them are also different, for the life on earth that lives in them, the air that can breathe freely may be fatal to aliens, and there is obviously an independent air environment system inside this building.

The night was as quiet as water, Luo Yuan picked up the dead leaves under him, plunged his body into it, and gently exhaled a breath of turbidity, with a strange excitement on his face,

Although his body was still thousands of kilometers away from the building, he didn't have to wait.

The wonderful use of foreknowledge allows him to test the reactions of extraterrestrial civilizations with various illusory actions conceived in his mind.

In the first picture, he stood up and swaggered towards the building, but after two seconds, he still did not get effective feedback and failed.

In the second picture, he began to run towards the building, at a speed of nearly three hundred meters per second, flying straight towards the building, but before he ran less than a tenths of a day, a small hole suddenly flashed on the surface of the building, and a high-energy ray instantly hit Luo Yuan's forehead, and his eyes were black.

The building's automatic defense ability seems to be extremely sensitive to high-speed objects, and it can detect targets and attack automatically in less than zero point, his face is a little ugly, and his heart groans slightly.

After a long time, he tried again.

This time, the picture is not rushing in a straight line, but moving forward irregularly in an S shape, and the attack reappears after the same zero tenths of a second, the first high-energy ray misses, and immediately after, the second high-energy shot comes again, and his eyes are black again.

Luo Yuan tried several times again, except for the first one, which can sometimes be avoided, and the second one, it is absolutely difficult to escape, and each time it ends with a hit on the forehead and a black screen.

Luo Yuan's face was as solemn as water, his heart was beating violently, the extraterrestrial civilization must have a terrifying ability to quickly lock in intelligence and a powerful ability to analyze and calculate, in this case, no matter how irregular and irregular his progress is, it is just that it cannot exceed its data analysis and calculation ability, and the trend of movement is completely predictable.

This is simply terrifying, even an evolutionary of his strength, under this kind of attack, is also helpless, no matter how he dodges, no matter how strong his agility is, no matter how fast he is, he will only end in death.

If you don't have the ability to predict and break in rashly, I'm afraid you will end up like in the picture.

After the violent heartbeat calmed down a little, Luo Yuan continued to probe again, this time to conduct a long-range attack test, throwing short spears and stones from a thousand meters away.

Each short spear or stone, in the hand at a terrifying speed approaching three times the speed of sound, roared, up to sixteen points of agility, so that the frequency of attacks was extremely fast, he seemed to turn into a thousand-armed Guanyin, countless arms waved in the air, for a time the attack was like rain, but it could not fly a few dozen meters away, it was more high-energy rays one after another, and the last ray instantly melted his head, and it was black.

This night, he kept using foreknowledge to test, and even in the end he dared to venture closer, but before he reached two hundred meters, he retreated, because further forward, it was a high-alert area of automatic defense of the building, no matter how slow he was, no matter how harmless his performance was, he would not escape the attack, he did not have any attack blind spots, and easy to exploit loopholes.

The result of the foresight temptation made him desperate, and the best outcome was for him to hide in a boulder while burying his body in the ground, and finally a ball flew out of the top of the building after the high-energy ray cannon had not worked for a long time.

This time, he didn't see himself dead, because two seconds had passed, but thinking about it, the ending was probably no different from before.

Seeing that the sky was gradually getting brighter, Luo Yuan sighed, carefully and slowly left here, and half an hour later, he returned to the entrance of the cave where he had been before, and he quickly drilled in.

His body leaned limply against the rock wall, his face was gloomy and haggard, he seemed to have been hiding in the distance, motionless, but the invisible confrontation in the foresight image, the consumption of spirit was no less than the battle between life and death, especially the disparity in strength shown behind the desperate ending, so that he was dead and could not see the slightest hope.

He couldn't even break through the first line of outer defenses.

He leaned against the rock wall, his brows furrowed, and he groaned in his heart, but how could he think of a way in a short time.

The building was like a spiky hedgehog, impossible to approach, and now he could only hope that aliens or intelligent robots would not stay in it forever.

This time, he came out with a mission, first, to detect the intelligence of extraterrestrial civilizations, and secondly: to obtain as much as possible the scientific and technological items of extraterrestrial civilizations, while hiding himself, and if there is a danger of exposure, he will give up.

The requirements for the task above the reconstruction area are relatively broad, and they are quite cautious, everything is based on the premise of not being exposed, and there is no mandatory requirement in addition, in fact, if you test him to this step, it will not be much better if you change any evolutionary, and it is almost the limit to be able to obtain this information.

However, Luo Yuan was really unwilling to return in vain, and he also didn't want to see that under the strong pressure of extraterrestrial civilizations, the reconstruction area had no power to fight back and was wiped out.

At this moment, there was a sudden commotion in the forest, and it seemed that countless creatures were running wildly in all directions.

"Something happened." With a pang in his heart, he quietly burrowed out of the cave, lowered his body and cautiously glanced around.

At this time, he keenly noticed that there was a very faint vibration in the air, if there was nothing, and the frequency of this vibration was extremely low, and the fluctuations were almost visible to the naked eye.

He looked at the wild mutant creatures that were stimulated by this fluctuation not far away, and then looked in the direction where the fluctuation came from, which was from the valley, and he suddenly realized in his heart, and then he was afraid for a while.

"It's no wonder that there are almost no mutated creatures in the valley near the building, which turned out to have been expelled by infrasound. Fortunately, it is located behind the mountain peak, and after being absorbed by the mountain and the air, the infrasound waves are already extremely weak when they come here. ”

"Infrasound waves can resonate with biological organs, ranging from organ damage, dizziness and nausea, to organ fragmentation, causing death, which is extremely dangerous. If he hadn't had time to evacuate before, he would have fallen in. ”

"Yes, waves, resonance!" At this time, he suddenly blessed his soul, and a trace of inspiration was born in his heart.

A sinister smile flashed on his face, since the buildings of extraterrestrial civilizations are like hedgehogs, making it impossible for people to speak, then use violence to knock them open.

Maybe an earthquake could solve this problem perfectly.

Each time the earth is trampled, as a vibration, through resonance, it causes a regional earthquake.

This was his idea when he was rebuilding the area, but the plates in the area were so fragile that small earthquakes occurred from time to time that he could not estimate the consequences of the resonance, and he never experimented with it to avoid a catastrophe.

After coming out this time, although he left the reconstruction area, he did not have this urgent need, and this experiment was gradually left behind by him, if it weren't for the discovery of infrasound waves this time, which inspired him, I am afraid he would not have remembered it for a while.

Before that, though, he had to choose a safe and undisturbed place, which was too close to the valley and where the trampling of the earth was just as loud as it was before the real earthquake, and as long as he was not blinded, he could not be detected from outside the earth.

But it is also not good if it is too far away, not only is it difficult to cause the resonance of this area, not to mention that it has no effect, but it is also easy to startle the snake and arouse the suspicion of extraterrestrial civilizations.

This is undoubtedly a dilemma!

Luo Yuan's mind was spinning, and he soon had an idea.

He untied the straps and entered the four-dimensional vision, and his method was to use the independent space formed by the curvature flight to go directly underground.

His face was heavy, this method was quite dangerous, even if he had foreknowledge, he could detect the danger of the earthquake two seconds in advance, and if one was not good, he might die and be buried in the ground forever, but now, there is no other better way in a short time.

The curvature flight was activated instantly, and the space slowly distorted, and it took a full five minutes for the space bubble to gradually form.

The space bubble he controlled slowly sank into the ground, where the line of sight was useless, only perception could make some vague judgments, and the range was greatly reduced, the original distance of exploring a hundred meters was now less than thirty-four meters, but it was enough.

In order to create a greater effect, he slowly advanced towards the valley of his memory.

As soon as he reached the outskirts of the valley, about seven or eight kilometers away from the buildings of the extraterrestrial civilizations, he stopped, not advancing.

Immediately, the will erased the space bubble, and the space spread rapidly, and a circular space with a radius of two meters suddenly formed inside the mountain.

It was located in a lowland somewhere, with a drop of seven or eight meters from the vicinity, and about six meters above the ground, and the rock layer was four meters thick when the humus layer was thrown away from the nearly two meters.

This distance is the safety threshold that he violently breaks through when an earthquake causes a collapse. If something goes wrong, he will immediately break through the stone and escape perfectly.

It is also the longest distance that can be safely escaped within two seconds in the predicted test result.

This is his last insurance!

He tied his forehead with a strap, took a deep breath, and the next moment he entered a state of earth pulsation.