In fact, the group of giant spiders climbed the cliff desperately not for courtship, the power of love is not so great. Pen & Fun & Pavilion www.biquge.info There is another situation in history when such a large animal migrates. It is that every time there is a catastrophe such as a tsunami or an earthquake, there will be a large-scale migration of species. Because some animals are able to accept changes in infrasound waves or magnetic fields to know in advance that disaster is coming, migration is their reproductive instinct, and the natural behavior of the continuation of the species. It's just the imprint of their ancient ancestors on their genes.

Kyle and the others were so frightened that they didn't notice that the marching ants had fled from the other side of the stone towards the cliff.

"Well, this is their base." Wang Xiaoming looked at the two overlapping red dots and said.

"It's not their base, you just saw those regular caves on the rock wall, obviously man-made. And there were traces of metal rust on the rock wall. It shows that the underground base has been built for a long time. Even if it's their base. That was their base a long, long time ago. Kyle analyzed.

"So their people are down there now?" Yi San looked at Kyle.

"yes, anyway, there's something they need down there. Since it is something they need, we should not fall into their hands even if we don't need it. Kyle was holding an ordinary female bracelet in his hand.

"It's probably the Juloba Stone Plate, something we really need too." Wang Xiaoming inadvertently touched a female pendant around his neck with his hand.

"Then are we looking for an entrance? We're going to go out and go in the other direction of the valley. "James wants to get out of this terrible cliff. He had a sense of foreboding right now.

"It's too late, they're already one step ahead of us. If we go around the way, we'll run into them. We don't know how many they are and what they are equipped with, and they must have marked or installed surveillance in the path they have taken, so we will be directly targeted by them, and we will suffer. Generally, the base will have a ventilation system to connect to the ground. We should be above the ventilation system now, and we can get in when we find the vent. Maybe we can get ahead of them and give them a surprise and seize the opportunity. Kyle snapped up.

"How do you know we're on the ventilation system?" Eve was puzzled.

"This cliff is formed by a collapse at a glance, and the general ventilation system will have a special ventilation chamber, and only the collapse of the ventilation chamber can cause such a large collapse." Kyle said, pointing to the bottom of the cliff, which is about 1.5 times the size of a football field.

"Why can't it be a launch pod, I think it's like a helipad for a quadcopter." James was suspicious of Kyle, and an inexplicable uneasiness swelled up in James's heart.

"If it's an apron or a launch pod, the rock wall or the rock underneath will melt into glassy crystals due to the high temperature of the fuel, but there is no near or the rock wall. In addition, in the past, this was a valley on both sides of the river, which required great take-off and landing of aircraft. Unlikely. Kyle discouraged James from retreating.

"I think I've found that entrance." Yi San pointed to a small mound surrounded by low shrubs on the opposite cliff wall.

"The vegetation there is unusually lush compared to other areas, and it must be that after the collapse of the ventilation system, the oxygen and carbon dioxide in the base came out of the ventilation port, which allowed the vegetation near the ventilation port to maintain enough oxygen content and enough carbon dioxide to produce organic matter when the global oxygen content was declining at that time, so the vegetation appeared luxuriant!" Yi San said confidently.

Everyone else looked at Yi San sideways, but they didn't expect this guy to really have a set.

"It's called applying what we've learned, and that's what we did in high school." Yi San said without modesty.

"It seems to make sense, but you have to go and see it to know if it's so good. Maybe there's a dead boar or something that feeds the bushes. "Wang Xiaoming always likes to hit people.

The crowd carried their backpacks and helped each other towards the small mound.

James used a metal detector to probe the small mound, and found that underneath the mound was a square metal structure.

"Yi San's reasoning is right, this is the ventilation structure of the base."

"So how are we going down?" Eve thought of what she had just encountered on the cliff, and was terrified of the way she descended vertically.

Because people who are suspended in the air will always have an inexplicable sense of fear and powerlessness. It's all gravity's fault. Those who are suspended in the air can really feel the gravitational pull of the earth on him, and they can really feel the distance of death.

"The ventilation system is vertical, so you have to hang a rope to go down." Kyle is aware of Eve's concerns.

They just did it, and in a few moments, they dug up a metal frame one meter square.

"This base is also a bit old." Kyle said, looking at the lid that uses a molecular film as a ventilation system.

The principle of molecular films is one of the more commonly used materials in the mid-21st century, which can isolate water molecules but allow the passage of other gases such as oxygen and carbon dioxide. For the camouflage of the base has a great effect.

"But you can't tell which country this base shape is?" Wang Xiaoming had studied a little bit of last century architecture, and he had never seen this type of base modeling.

"The base is all secret, so you can see it when you say it." James put away the metal detector tools.

"So how are we going to go down?" Eve's mood was not completely calm.

"Open the lid and hang the rope down." Kyle pulls out a multi-tool box to disassemble the molecular film manhole cover.

"Do you want to leave one person on top of it?" James also had palpitations.

"There's a colony of marching ants behind you, who of you wants to stay. Besides, there are a lot of cipher devices in the base to crack, otherwise what do you think I'm bringing you here for? ”

Kyle cut a large hole in the manhole cover with pliers, and a foul-smelling air burst out of the black ventilation shaft.

Thinking of the cold war marching ants, everyone dismissed the idea of staying. It's safer to be with more people.

"Nothing lasts forever, and after so many years, this molecular film has long since broken down. The gases were sealed inside the base, and they all stinked. Kyle sighed.

"Put on your hazmat suit and get ready to go down." Kyle ordered.

At this moment, the open manhole cover disrupted the gas balance of the base, and inside the base, a group of people also wearing biohazard suits, holding advanced weapons and electronic equipment in their hands, were scanning and inspecting a password gate whose physical defense was nuclear.

"Professor, there's a slight change in atmospheric pressure at this base, I remember when we closed the door to enter." Said a man with a graceful figure who looked like an assistant.

"This base is nearly 200 years old, and maybe the upper base has long been destroyed by nature. This change in air pressure does not need to be investigated. Let's see how to unlock this codedoor. A white-haired white professor in his fifties and sixties was holding a magnifying glass and was watching intently at the clues on the coded door.

"Why don't you just blast it away." He was accompanied by four heavily armed soldiers, one of whom said, a colonel.

"It's been said that force doesn't solve the problem, Tom is dead, and if you don't want to be punished by the general, you should find the Juloba Stone Plate. Make up for it. The professor said angrily that he didn't expect such an accident. If he couldn't find the Zhuloba Stone Plate, he would definitely not be able to get out of the relationship.

"This gate is not like the previous gate, the defense level of this gate is the level of a nuclear bomb, even if you destroy the base, you may not be able to open this gate, and our mission is very secretive, so we can't let the cunning earthlings find out." The handsome assistant explained like the colonel.

It turned out that this group of people was the same team that Kyle was on the white young man they killed. They're already inside the base. Just now the colonel returned to the place where the white youth was killed, already a step too late. Now we can only hope to find the Julobah Stone Plate. If they could find the Zhuloba Stone Plate, they thought that even if they were derelict in their duties, killing the young man and his father would not be a big deal. It can be seen that they attach great importance to the Zhuloba stone plate.

Eve chose to be in the middle of them this time, with Kyle and Yi San leading the way, Wang Xiaoming and James behind. They all wore waterproof miner's lamps on their heads. Every time Wang Xiaoming descends a certain distance, he makes a hole in the wall of the well, puts in a metal pillar and fixes the nylon rope again.

"Don't fight anymore, although the base is well sealed, the sound of this metal can easily be detected by the enemy." Kyle reminds Wang Xiaoming not to make any more holes.

"This nature is too terrifying, it's a hundred meters away, and there are roots of plants here." Yi San looked at some of the metal joints on the inner wall of the well, and some plant roots grew in, perhaps it was because the ventilation system was still in operation back then that it could provide them with gas nutrients.

"We only conquer and fear, never know how to revere. Perhaps, we humans are all wrong. In fact, there is nothing wrong with the earth, and there is nothing on the earth that will not perish. You see, aren't all these plants alive and well? It should be humanity that perishes. Humanity is now afraid, so it is a different way to conquer nature, relying on mercy and salvation. "James has a claustrophobia, and the hundred-meter-deep shaft makes him panic, so he wants to say something to divert his attention.

It is a base of vertical structures. Such bases are usually built in the middle of the mountains, that is, the interior of the mountains is hollowed out to establish secret bases. First, vertical structures are more likely to evade tracking by military satellites than vertical structures. Second, the vertical structure allows for hierarchical secrecy of some secrets according to their level. Even if the base is invaded, there is still time to wait for rescue or destroy the secrets.

"With such a large ventilation system, this base is definitely not simple, and we hurry up. We can't let them get what they want before we do. Kyle said to the crowd.

Because Kyle and they came down from the ventilation shaft at the top of the mountain, and the team from Mars went in from the bottom of the mountain. And they have already gone two or three hundred meters below sea level. Nothing is known about Kyle's movements on the cliff at the top of the mountain.

"Let's hurry back and get help, this password is more difficult than we can imagine." The professor said with a frown.

"Without further ado, go up now." The colonel was already on the same side as the professor.

"Block, it's going to be over soon. Come on, you can do it. Kyle was cheering up the players.

The advantage and disadvantage of the structure of the vertical base is that generally its cross-sectional area is not very large. In this way, the structure of the ground floor can be kept stable and will not be easily destroyed by the movement of the stratum.

Therefore, Kyle and this team from Mars have a good chance to meet!