The natural world is too magical, and there are many uncharted areas. Is this again a supernatural force? He looked at the other side with a loud bang, and could be sure that this supernatural power was even more terrifying than a great avalanche.

The current was very fast, and in the blink of an eye, the boat moved forward about a kilometer or two, and finally reached a small pier, and the core area of the underground base was reached.

Every twenty or thirty meters by the small river here, there is a strong bunker made entirely of large stones. On both sides of the small pier, there is a bunker. A dozen wooden boats were tethered to the pier, and a little further on, the river passed through the cave under the square in front of it, becoming an even more hidden underground river, and the river flowed in an unknown direction.

Two people on the shore, not even carrying a gun, were untying a small boat. Far away, he shouted in Miao Chinese, "We're about to go to your place, your mother, what are you doing back?" ”

"Fuck you, it was Old Cook who asked me to come back!" Liu Guodong scolded in Miao language, and at the same time joined forces with Lin Zhumin, and quickly approached the boat.

Twenty or thirty meters away, Yu Songyuan and Lin Tao held their crossbows, "swish" twice, and the two of them responded to the sound of "plop" and "flutter" and planted into the river. The current here was fast, and the boat, along with the corpse, drifted away with the current.

When everyone went ashore, Liu Guodong tied the boat.

When I looked up, the top was swarthy, and I couldn't see the top. If you look left and right, the space here is the size of a dozen football fields, and it looks endless. This shocked everyone, and it was the first time that everyone had seen that a cave could be so big.

"Can a passage cave be so big? It's not going to fucking collapse, is it? Lin Zhumin asked uneasily.

"Worry about it, absolutely not! This is a very special karst formation, because there is no water at the top, the stone cannot be melted, so it solidifies. This is slowly formed over tens of thousands, hundreds of thousands of years, or even tens of millions of years, and will never collapse! ”

When it comes to natural or social sciences, Liu Guodong is always an authority. Especially in the natural sciences, no one dares to doubt it.

Liu Guodong and Lin Zhumin unlocked the door and entered the bunker by the dock first. The bunker is three or four meters high and has two floors, from which you can fully control the river and the surrounding square. On each floor, there are heavy machine guns, and there is even a real infantry gun on the ground floor. In the basement, there are living facilities and ammunition depots.

It turns out that these bunkers are permanent fortifications that can be held on to for a short time!

Seven or eight hundred meters away from the shore, under the shadowy street lamps, dozens of rows of tall wooden houses are built. Throughout the big cave, at intervals, there is a street lamp. No matter how bright the lights are, they are like the night in the city.

When the lighting system for this underground world was set up, the lights might have been brighter. Now, after so many years, it has fallen into serious disrepair, many street lights have been damaged, and the illumination that can be brightened is not good.

The cave was very quiet, except for the remote living area, on a brightly lit basketball court, where three people were playing basketball, one was watching, and the rest were not alone.

According to the map drawn by the two girls, the small cave where the motor room is located should be next to the factory at the other end of the underground world. Yu Songyuan led the team and quickly moved towards the factory area.

The street lights in the factory area are even more broken, and many places are dark. When approaching the factory area, two men wearing big pants and overalls in their hands, with three girls in their hands, were talking and laughing along the way, and suddenly walked out of a big cave.

"What are you doing here?" A man asked from afar.

"Get some oil, I'm going out hunting!" Lin Zhumin Road.

"Wait for us, we're more worth the week, ...... with you"

Before they finished speaking, Yu Songyuan and Lin Tao suddenly raised their hands to shoot, and with two "poofs", the two fell to the ground almost at the same time.

"Ahh The three girls screamed, they were all stunned, holding their heads, squatting on the ground and not daring to move!

Lin Zhumin and Lin Tao quickly controlled them to prevent them from screaming and running in panic and missing a big event.

"How many people are in the cave?" Liu Guodong looked at the open door of the cave and asked in Miao language.

"Two ...... People ......," said one girl with a shudder.

The witch hurriedly soothed them, Liu Guodong and Lin Zhumin walked quickly towards the cave, Yu Songyuan and Lin Tao lifted the corpse, walked to the factory area, and hid in the shadow of the street lamp behind an empty house. To everyone's surprise, there were three dilapidated M Army jeeps in the open space in front of the factory, and there was a small tow bucket behind them.

Liu Guodong and Lin Zhumin quietly entered the cave, only to hear the faint "humming" sound of diesel engines.

It's a hole in a hole, and the outer room is a tool room and lounge, which is big, big. After passing through the outer room, there is a long cavern corridor. Walking down the corridor, after walking for about ten meters, I came to a stone door again. Liu Guodong slowly pushed open the door, and the roar of the diesel engine inside gradually became louder.

It's a workroom, and two men are lying on their workbenches, cigarettes in their mouths, comfortably and intently holding a book.

Liu Guodong and Lin Zhumin raised their pistols and fired two shots, and the two fell down on the workbench one by one.

Putting away the pistol, he pushed open a door with a sealing function, and the sound of the diesel engine immediately overwhelming the world, deafening! He observed that it was a huge machine room that was carefully built, and there were eight 320KW diesel generator combinations and four 800KW diesel generator combinations produced by the German company MAN.

All diesel generator sets were manufactured in the sixties, but only one 320KW diesel generator combination was in operation. There is a combination of two diesel generators, which are undergoing overhaul and maintenance.

In the deep mountains and old forests, to build an oil-fired power station of such a scale, and the level of equipment was so high, only the M Army at that time could do it. The installed power is even more amazing, if it is only lighting electricity, a diesel generator set starts, it is the start of the drug processing plant, and the electricity in the entire cave cannot use the output of electricity!

He quickly planted elaborate micro-explosive devices on all the diesel-electric combinations, and he wanted to stop the diesel engines at the same time, and the workers did not want to fix one in twenty or thirty hours. And he himself can quickly repair one of them in half an hour.

Moreover, he also pulled an electric welding machine and welded all the two warehouses in the corridor. In these two warehouses, a number of small gasoline generators are stored. Just hang it on the back of the jeep and pull it to any corner of the cave to use. However, it is clear that these small devices have never been used due to the safety and reliability of the complete power generation facilities in the cave.

"There are still cultural relics hidden in this cave, you blew them all up, what are we doing in the dark?" Lin Zhumin reminded.

"Cut!" Liu Guodong explained to Lin Zhumin, and Lin Zhumin happily punched him.

"Fuck it, hit me when you're happy. Beware that I'll find it back from Xiaomei's when I arrive! ”

Liu Guodong whispered a small advantage, and at the same time closed the sealed door, and the huge sound of the diesel engine was enclosed inside. He walked to the console again and cut off the fuel supply to the four diesel engines at once.

Judging from the design and architectural specifications of the power station, Liu Guodong judged that the architectural designer of that year must have been German. One of the evaluation criteria for power stations is the level of quietness. And the noise level of this power station is controlled at 90-100 decibels, which is quite a high level.

Usually, the noise of the power station is above 100 decibels, which will cause the maintenance and operation workers to have noise-induced deafness, and working in a noise environment of more than 105 decibels for a long time, people are prone to schizophrenia!

The diesel engine suddenly stopped, and all the lights turned red at once, and all went out in an instant, and the entire underground world became dark in an instant.

The two walked out of the cave, while Lin Zhumin set up mines and other defensive devices in the rest room and corridor outside the power station. Then, the two entered the factory area and joined Yu Songyuan and others.

"Stinky boy, that's great! In the future, I will call you Almighty Liu! ”

The electricity went out, all the street lights in the underground world went out, and the underground world was dark. The witch happily gave him a popping chestnut as a reward!

"What about the three girls? You won't ......," Lin Zhumin asked.

"Rest assured, it's safe! I hid them in a nearby room, and when I was done cleaning up the enemy, I would take them back to Miao Village with me. Lin Tao explained.

Yu Songyuan said, "Put on night vision goggles and start cleaning up secretly now." It's all heinous, don't think about keeping your mouth alive! But be careful, don't hurt the innocent! ”

Liu Guodong added, "Ghost, it's very strange in this cave, there is no signal on the walkie-talkie. This hole is too big, be careful to cover each other! ”

The witch said, "It is better to act in groups and cover each other." At the same time, everyone should remember the number! ”

Yu Songyuan said, "Lin Tao, Guodong group, me, witches, and Zhumin group, first clean up the living area." Then, let's get the final observation post! ”

At the sound of an order, the team began to outflank the living quarters more than a thousand meters away.

At this time, it was dark all around. In the distant living quarters, there are occasional flashes of light, like ghost fires, flashlights or candles. The flashlight column and the red light of the cigarette butts flashed in front of him, and a few people were shouting and scolding noisily, and they were walking towards the power station room.

This is the square, unobstructed. Lin Zhumin, Yu Songyuan and the witch were lying on the side of the road, and when they got closer, they found that these were four power station maintenance workers, and after the power outage, they were hurrying to the power station.

"Hit!"

At the sound of an order, the whispering pistols in the hands of the three people rang out. "Puff puff" three shots, and the three fell to the ground. The other screamed and ran. Lin Zhumin shook his hand and shot, and he fell to the ground!

Lin Zhumin stepped forward and turned off the flashlight thrown into the ground. All four of them were wearing large pants and no weapons, and they were indeed power station workers.

Having eliminated the electrician, the three did not dare to pause, and quickly approached the living quarters according to the gun. From the night vision goggles, three people were seen sitting on the edge of the basketball court, smoking and chatting. One of them also used his flashlight to shake boredly at the sky and the surrounding area from time to time.

Lin Zhumin was in front, Yu Songyuan and the witch were behind, and the three of them approached quietly in the dark. When they reached more than 20 meters, Lin Zhumin did not move, and when the witch and Yu Songyuan also came up, Lin Zhumin made a gesture of "hitting", and the three of them raised their guns at the same time to shoot, "poof" three shots, and the three of them fell to the ground one by one.

The living quarters consist of dozens of rows of houses made of wood, with screens and screens on the doors and windows. At this time, between the houses, there is no one left. According to the information provided by several girls, the underground world still follows the time of day on the ground. It's afternoon, where are all the people?

The three of them had to patiently clean up room by room.