Oh My God! Earthlings are Insane!

"How can it be?"

Long Feijun lost his voice.

The hit rate of high-altitude bombing has always been one of the most difficult problems in war.

No matter how violent the volcanic eruption is, the size of the crater is quite limited.

Looking down from a synchronous orbit outside the atmosphere, no matter how large the crater is, it is smaller than the tip of a needle.

The probability of pushing a meteorite and dropping it from a synchronous orbit, impartially, and accurately hitting an erupting crater is not much higher than shooting a cotton thread from 100 meters away to penetrate the eye of an embroidery needle.

And unless it is a 100% accurate hit, there will not be only one tiankeng left on the ground, but two overlapping, gourd-shaped serial pits.

"It's possible. It doesn't have to be a crater. Maybe it's some kind of cannon launched from the ground out of the atmosphere and specially used to attack targets in synchronous orbits, just like the missile silos on the earth." Meng Chao murmured road.

He closes his eyes.

A picture appeared in my mind.

A long time ago, long before the carbon-based intelligent life on the earth had sprouted, an earth-shattering war broke out in another world.

The raging flames on the ground, like a volcanic eruption, were a hundred times more violent, converging into huge crimson beams of light, piercing through the sky and piercing the stars.

Under the stars, in the synchronous orbit, countless meteorites, driven by mysterious forces, fell like super-giant hailstones, destroying the "big cannons" that output beams of light one after another.

The air waves tore through the space, the high temperature melted the earth, and the whole foreign world was literally a hell of fire.

In the Hell of Fire, there are countless existences stronger than the gods and demons from other worlds, brandishing shining weapons with superimposed countless heavy spiritual magnetic fields, and sending out battle cries resounding through the sky.

Similar images, when Meng Chao was practicing in the depths of the ancient ruins, occasionally emerged from the depths of his mind.

It's just that these pictures are more fragmented than the memories of the previous life.

Like a dream after waking up in the morning and peeing, all the details fade away with the chills.

Until now, seeing the tiankeng makes people feel familiar.

"This is very likely to be an ancient battlefield."

Meng Chao said: "Meteorites will not appear in low-Earth orbit for no reason. Someone must have captured it from outer space and smashed it down as a weapon-the purpose of the attacker is to blast this giant cannon similar to an active volcano. Control the speed of the meteorite, otherwise, if the entire continent is destroyed, even if the victory is meaningless.

"As it happens, we found a large number of traces of war in the ancient ruins. It can be reasonably inferred that a super war that destroyed the ancient civilization broke out in another world a long time ago. The time travel of the people on earth is not unrelated to this war. .

"No matter how difficult it is to push down a meteorite from a synchronous orbit and accurately hit a crater or the muzzle of a giant cannon, the total difficulty is nothing more than allowing an earth city and all its citizens to travel to another world hundreds of millions of light-years away. The ancient civilization has the ability make it happen.

"If the tiankeng and the ancient ruins in front of us all originated from the same war in the same era, then everything would make sense."

Long Feijun followed Lei Zongchao, the "War God", and also entered the ancient ruins to practice.

Meng Chao's words made his heart tremble, and he said solemnly: "You mean, this tiankeng, like the ancient ruins, is very likely to contain a lot of secrets and...power of ancient civilization?"

"This is an obvious thing, otherwise, where did the monster civilization come from?"

Meng Chao said, "It is impossible to develop a monster civilization with such a strong organizational force that can organize a large-scale beast swarm to attack human cities in just a few decades just with the monsters that have absorbed the spiritual energy and the enlightenment of human civilization. , it is even more impossible to breed a super beast like 'Whirlpool' who is well versed in the weaknesses of human nature.

"Furthermore, the biochemical modulation technology of monster civilization is ten times stronger than that of human civilization. Even a doomsday monster that can destroy the world cannot master a full set of technology without a teacher, and produce all the biochemical modulation required. equipment?

"The monster civilization must have been enlightened by the ancient civilization, just like the human civilization that traveled to another world also received the help of the ancient civilization.

"Human civilization and monster civilization are two fruits grown on a vine, so we can use monster materials to cultivate, and monsters can also become stronger and stronger by devouring strong humans."

Long Feijun narrowed his eyes.

What Meng Chao said was not incomprehensible.

In fact, regarding the origin of monster civilization, there has long been a "prime ancient civilization enlightenment theory", and now only more evidence has been found.

If this is the case, the danger level of exploring the tiankeng will double again.

This ultimate lair of monster civilization, which contains ancient mysteries, will never be easily revealed by humans.

But the higher the risk, the greater the reward. As long as the people on earth can completely capture the tiankeng, it is possible to obtain more ancient mysteries.

Including incredible biochemical technology, which can make strong human beings have the power of doomsday beasts.

"Continue to search, look for traces left by the previous expeditions, and collect and analyze more samples."

Thinking of this, Long Feijun gave the order.

After a pause, he said again, "Don't rush down until you fully understand the situation."

This command was transmitted to the ten exploration teams through the tactical data link.

It is very strange that the closer you are to the tiankeng, the weaker the spiritual magnetic interference, and the better the signal becomes.

Ten exploration teams can even start real-time communication, public channels for transmitting images and audio.

Just like the mastermind behind the monster civilization, he is not afraid of them contacting each other at all.

They took pictures of the tiankeng from different angles.

Even the place near the bottom of the pit was clearly photographed.

However, most of the rock walls and pit bottoms are covered by green tides.

If there is an entrance to the ultimate lair of monster civilization, it is also hidden under the green tide, and it is impossible for humans to directly mark the coordinates of long-range bombing.

Also, no human towns, or any signs of human activity, were seen.

I really don't know under what circumstances the "Pan-eating Pomfret" team saw the human town.

After continuing to explore for half an hour, the expedition team of Meng Chao and Long Feijun discovered the camp left by Lu Siya's team.

That is where Lu Siya and the others assembled the hoist, built a temporary lifting platform, and set up the firepower point.

This place is naturally empty, without even a single human hair.

But it is very strange that there is no trace of fighting in the surrounding area.

All the fully automated heavy machine guns and flamethrowers at the firepower points around the temporary camp didn't fire a single bullet and spit out a wisp of flame.

None of the landmines and anti-monster grenades hidden on the periphery of the firepower point were triggered.

The hoist is good, pull down the joystick, and the lifting platform will rise slowly with a slight noise. Naturally, there is nothing on it.

Meng Chao wandered around inside and outside the camp, and found two half-eaten self-heating meals on the ground.

Although the food was covered in a layer of colorful mold, it was largely intact, having been gently put down rather than thrown flying by a forceful blow.

this point is very important.

The members of Lu Siya's team are all elites from the Ninth Special Search Team of the Alien Beast Investigation Bureau.

Unless it is confirmed that there is no danger within a few miles, it is impossible for them to sit down and eat to replenish their strength.

The meal was only half eaten, what could have caused them to put down the lunch box gently, and then disappear mysteriously?

If it was an enemy attack, with so many living people struggling a few times, there should be a lot of traces left on the ground, rocks, and equipment, right?

And since there is a time to "put down the lunch box gently", why is there no time to sound the alarm and leave clues?

Besides, besides Lu Siya and the others, there were several exploration teams.

Just now, Ye Xiaoxing had already personally inspected the temporary camp set up by Lu Siya's other squad at a commanding height a few kilometers away.

The situation is like a withdrawal.

All the equipment was intact, even half of the mines were not triggered, but the humans disappeared without a trace.

"Senior Brother Long, do you think we should go down?"

Looking at the lifting platform that was dragged to the edge of the tiankeng by the hoist and swayed in the strong wind, like a swing that had been in disrepair for a long time, Meng Chao swallowed hard and asked in a low voice.

"Although our mission is to explore the truth of the sinkhole, I have to say—"

Long Feijun also swallowed his saliva, gritted his teeth and said, "Until all the 'bread crabs' and 'peregrine falcons' are released, I will never send anyone down to die."

"It makes sense. We still have 'Bread Crab' and 'Peregrine Falcon'. The spiritual magnetic interference here is not strong, maybe it can..."

Meng Chao had only finished speaking halfway.

The 36,000 fine hairs on the back suddenly stood up like ice needles.

The calf muscles burst, and he rolled to the right like a conditioned reflex.

"Shua!"

A vine covered with thorns and smeared with mucus brushed past his ear, compressing the air and irritating the eardrum, as if making a howling sound.

His shoulder was rubbed by a thorn, and before he could condense his spiritual energy to resist it, the wound suddenly became red and swollen, becoming unbearably numb.

Before Meng Chao turned his head, he saw the geologist dancing and flying past him, falling towards the depths of the sinkhole.

With sharp eyes and quick hands, Meng Chao wrapped the chain blade around the geologist's ankle and dragged him back.

There were more screams behind him.

Meng Chao turned his head abruptly and saw a horrified scene.

Countless vines with thorns and slime, like a giant python drilled out of the ground, entangled the explorers tightly, dragged them into the air, and threw them around.

The thorns and mucus seem to be extremely corrosive and anesthetic, they can suppress the surge of spiritual energy in the human body, and paralyze the muscles and central nervous system, so that the strong above the heavenly realm are like fish on a chopping board without fighting back Power.

But the source of these vines extends all the way to the depths of the jungle, covered with green tides, towering into the clouds, and staggering green giants.

"UHV transmission tower!"

Meng Chao's pupils shrank into two pinpoints, but the rest of the eyeballs were filled with green.

He couldn't believe it, and cried out.