Before dark, An Kai finally made another room.

　　 The direction of the first room is all the way down the first two rooms.

　　 The emptied material in this room contains a higher content of lime. An Kai's guess is indeed correct. He is gradually approaching a lime mine.

　　 The third room is a bit larger than the first two. This room is planned to be used as a work area, so the area will be larger.

　　In An Kai's plan, he had to prepare at least ten rooms in the initial stage.

　　 are the passage, preparation room, two bedrooms, power station, water purification station, bathroom, work area, warehouse and planting area.

　　 Among them, the planting area is the most special. It may be a super large room, or it may be a region composed of multiple small rooms. This will be decided later.

　　 The passage and the preparation room need not be said much. For the bedroom, two are necessary. The shelter is still in its infancy, and at least one bedroom for men and women should be guaranteed. After the shelter is larger and there is enough free space in the future, it may be possible to divide the bedrooms according to the family.

Power stations and water purification stations are very important. Underground shelters must require electricity. Ordinary generators are not only difficult to meet the demand, but also consume a lot of energy and cause noise and air pollution. So more advanced The power station is very important. The same is true for water purifiers. Once a nuclear explosion breaks out and enters a nuclear winter, natural drinking water is definitely not suitable for drinking, not to mention that it will be very difficult to go out to fetch water at that time, so one can directly extract groundwater and purify it. A water purification station is necessary.

　　The bathroom contains the dual functions of a bathroom and a toilet. It is related to personal hygiene, especially bathing, and it is directly linked to health and cannot be careless.

　　 One work area is tentatively set, but this one will inevitably be expanded. Pharmaceuticals, forging, smelting, making weapons, textiles, etc., all require equipment and special space.

　　 There are also kitchens and dining rooms, which can be placed in the work area temporarily, but after everyone has officially moved in, it will not be too late to open a special room.

　　The role of the warehouse goes without saying. The planting area is related to the diet of the entire shelter in the future. Before, Ankai used so many planting boxes, each covering an area of ​​one square meter, and a lot of space is needed to put them down. After all, An Kai's level is not enough. If his level is enough, he can make more efficient planting boxes and even planting rooms, which may save a little space at that time.

　　 But don't think about it now.

　　 So even if there are ten rooms, it is definitely not enough. There is no need for such a distant future. Just thinking about it now is not enough.

　　In the near future, it will inevitably expand again, and of course, it will mainly focus on moving for the time being.

　　 Besides these special rooms, there are some things that must be made.

　　 For example, an air purification system.

In the future, Ankai and the others will live underground, not to mention whether they can make oxygen production equipment. Even if they can make it, it is impossible to live on pure oxygen directly. The shelter must have air communication with the outside world, and at the same time, be careful about the air. Radiation dust in. The air purifier provided by the system, at the lowest level, can produce the fresh air needed by 10 people, but it is enough for the time being.

　　 This thing is composed of two parts. One part is a purification device. It is located outside the shelter and can be placed directly on the surface of the mountain above. It is similar to an air conditioner, which can inhale and purify the outside air. Then it is sent into the shelter through pipes, like a central air conditioner, delivering fresh air to each room. Inside the shelter, there is an air exchanger that can extract the old air and carbon dioxide from the shelter and re-transmit it to the outside world.

　　 This thing is too important. Now it doesn’t matter if there are fewer people in the shelter, but as Ankai completely abandoned the pharmaceutical factory and everyone moved over, the air purifier became a necessity, and it had to be obtained in the first place.

　　 There is also a temperature control system. The underground space is not constant temperature and humidity. To ensure a comfortable living environment, a temperature control system is also necessary.

　　 How long the nuclear winter will last, no one knows. If it really lasts for several years or even decades, the temperature of the entire world will drop significantly by then, and the shelter will inevitably not be spared. So this thing is also a necessity and indispensable.

　　 In short, there are a lot of things to do, but you can't worry, let alone mess up your senses, step by step, there is a system, these are not problems.

Philip also came back and brought back the third truck of materials. He found a large construction site and found a large amount of cement, sand and lime and other building materials there, not counting the truck he brought from the shelter. One truck has been shipped back, this is the second truck.

　　 An Kai went out to help, and the two of them unloaded all the materials, almost using up all their energy.

　　 Put the car away, An Kai and Philip returned to the shelter, then closed the gate, and began to prepare dinner and rest.

　　……

　　 And just as Ankai and Philip were preparing for the night, a crisis had arrived in the shelter in the riverside area.

　　 Many people have heard the federal government's broadcast, but they have also received news in the past two days.

　　 The riverside area that has just stabilized, because this broadcast has once again become erratic.

　　 Everyone is worried about the future. Almost everyone knows the consequences of a large number of nuclear weapons explosions. The world also has a nuclear winter hypothesis, and since no country in the world controls the number of nuclear weapons, the number of nuclear weapons in this world far exceeds that of the earth. Once a large number of nuclear weapons are detonated, the power of nuclear winter will be even greater.

　　 Therefore, a safe shelter has become a necessity for everyone.

　　 Before, survivors could find a place where the zombies can’t find or reach, but now it’s no longer possible. In order to avoid nuclear radiation, everyone needs a strong shelter.

　　 The pharmaceutical factory immediately entered the sight of these people.

　　 Originally, everyone was unwilling to offend him because of the strong firepower of the Ankai Shelter and the tall walls blocking it. It was extremely difficult to attack.

　　 But it's different now.

　　 Before long, countless nuclear weapons will be detonated at the same time, and nuclear winter will come.

　　 If there is no shelter, it will be a death. It is better to take a risk. If you can **** the pharmaceutical factory, wouldn't it be a bicycle to a motorcycle?

　　 As for trying to join the shelter...An Kai does not accept ordinary survivors. This has long been the consensus of everyone.

　　 So everyone has no plans at all.

　　 In fact, this matter is not a problem at all. Anyway, An Kai and the others are going to move. After they leave, it doesn't matter whoever takes over this place.

　　 But on the contrary, Ankai and the others need to build a new shelter before they can relocate. Before that, this place was still their place of existence, and it was definitely impossible to let them out like this. What's more, there are a lot of materials, weapons and ammunition, food and medicine, and those planting pots. Once the survivors outside know about the existence of these things, it is impossible to move them away at that time.

　　 No one thought that the various materials and thick walls that were originally used as the sanctuary became the reason for the survivors to besiege here.

　　 When Philip left this morning, everything was calm.

　　 However, as he left, the survivors who were hiding in the dark and ready to move, finally couldn't help the greed in their hearts and launched an attack on the shelter.

　　 bang bang bang...

　　Mary is lying on the roof, not disconnecting the gun.

　　 Every time she shoots, a survivor will inevitably fall to the ground, either dead or injured, or fall to the ground wailing.

　　 If it is normal, nothing else, just the existence of this rifle is enough to make the survivors retreat.

　　 However, at this moment, these survivors seem to be crazy. Even if their companions continue to fall, the alive people still continue to attack.

　　 Carter and Karel also each guarded a corner of the wall, trying to avoid the survivors’ attacks while fighting back.

However, there are too many survivors around~lightnovelpub.net~ They are constantly rushing up like a tide. Some people throw Molotov cocktails at the pharmaceutical factory, some use long-range weapons to attack, and they just give Mary and others all their counterattacks. Suppressed.

　　 A raging fire broke out in the yard of the pharmaceutical factory. The fire and smoke also blocked Mary's sight. In places where he could not see, more and more survivors gathered in front of the pharmaceutical factory and began to smash the door frantically.

　　 The durability of the gate has dropped rapidly, and it has gradually become unsupported.

　　 There are survivors who try to get in over the wall.

　　 Carter and Caryl shot at the guys who were trying to cross the wall, trying to beat them back, but this didn't help at all. More and more people appeared on the wall, and there was only time left to cross the wall.

　　 "We must retreat, we can't keep it here!"

　　 Carter yelled at Mary.

　　 His left arm was slumped, blood dripped down his fingers, and a crossbow arrow stuck in his shoulder, which was caused by a survivor.

　　 Mary didn't reply, she just kept shooting.

　　 It is impossible to retreat.

　　 She does not want to betray An Kai's trust.

　　 Even if she died in battle, she would not retreat for half a step.

　　 Carter did not get an answer, gritted his teeth, continued shooting, and shot another guy who was about to come in over the wall.

　　 However, with the passage of time, the main entrance has become severely deformed and may be broken at any time.

　　 There are more and more people over the wall. Looking at the wall, it is almost impossible to hold. Carter turned to look at Caryl, just about to let him take the children away first.

　　 But at this moment, a harsh horn suddenly sounded, and then a huge truck approached from a distance in a forward-looking posture.

　　 The speed did not decrease, and he snarled and slammed into the crowd in front of the shelter.