The first printing press, Lu Jingzhi called it Bi Sheng. Bi Sheng has four rocker handles and four sets of variable boxes, by four people at the same time to shake the handle, drive the gearbox, the gearbox is connected to the flywheel, and then the flywheel drives the iron cylinder with a certain speed ratio, when the cylinder is turned down, it will let the spell plate stick to the paint box, and then turn to the top, all the paper or cloth on it will be printed out of the spell pattern. Lu Jingzhi tried the machine twice with fabric, 10 spells at a time, 20 at a time, and the effect was very good, just waiting for the first batch of paper to be made, and a large number of them were printed. It's just that things such as ripening grass stems and laminating paper need to be done step by step, and they will not be repeated.

On the Canadian National Guard's side, Pingbai lost a patrol team, and sent people to investigate the cave several times, but the radio failed at 10 kilometers, and even the car would stop if it went a little deeper, and almost lost a helicopter due to engine failure. The military urgently brought in a brigade to strengthen the defenses, while additional search teams were sent into the cave to continue the search for the missing Muhl team.

Since the mechanized vehicle will lose power after about 15 kilometers after entering the cave, the search team is I (ice cream) team, the 9th team of the operation, and they put on the car the vehicle that has been eliminated by the main battlefield for nearly a hundred years - bicycles. The bike was custom-built for the search team, and in addition to a reinforced frame and solid tires, it also added two pylons to the rear wheels for an ammunition box and machine gun. However, it is unlikely that this bicycle-mounted machine gun will be a .50, but just a general 5.56mm M249 class light machine gun.

Soon after the convoy entered the hole, there was a loss of radio contact and engine failure. Team I removed the weapons from the bike and attached them to the bike.

"Tom, are they keeping up?" the captain of Team I shouted to the Signal Corps.

"I saw Team C (cabin cabbage) and Team F (field), chief. The communications officer looked behind him with a telescope and saw two other patrol teams that had also gotten out of the car and were ready to walk.

"There's cabbage growing in the field, aha?" the captain of Team I muttered, "I really don't understand, how can there be such a ghost place in this world where you can't even drive a car!" After casually complaining, he turned to the communications soldier and said, "Go and tell Team F not to be too fast, follow us to our right, and inform Team C to follow us to our left." ”

Tom got on the bike and was about to turn back, when he suddenly saw a figure flashing at the foot of the mountain, and hurriedly shouted, "Chief, there is someone over there." ”

The captain of Team I raised the binoculars in his hand and looked at it, and he really saw a man secretly peeping at this place on a horse in a hidden place at the foot of the mountain.

"Jason, kill that kid, don't let him run. The captain of Team I shouted. Jason, one of the team's precision marksmen, wielding an M14 sniper rifle, casually raised his gun, put his target on the crosshair, and with a snap machine, the target fell off his horse. "Well done, Jason. The captain of Team I saw this scene with a telescope. But before he could finish his words, the guy who had been knocked down by a shot got up from the ground, and looked as if there was a hole in his chest clothes, but there was no blood, and he was about to flee on his horse. "He's wearing body armor, Jason, one more shot!"

Jason was also annoyed, no target had ever escaped from his palm. He raised his gun and aimed it at his target's thigh, there was no body armor on his leg, and after steadying his breath, another shot was fired, and the bullet hit the target's left leg. Half of his knee was broken with a calf, but he still ran away on horseback.

"Boss, that's not right. Jason shouted, "How could he have run?!"

The captain of Team I was also furious and scolded: "How do you shoot with your gun?

Jason shouted, "Boss, I hit both shots!"

The captain of Team I also saw it, the first shot knocked the opponent off his horse, the second shot broke one of his legs, the accurate shooter is fine, the problem must be with the opponent. "Wilson, Jiaji, go and see what's going on over there. Raj, Brown, go diagonally across from each other and organize a fire to support Wilson. Others looked for cover on the spot. ”

Team I slowly dispersed into a battle formation. Raj and Brown are a fireteam carrying an M60 machine gun, with Raj shooting and Brown observing and loading. The two of them mounted their bicycles, ran behind a large rock at the foot of the mountain, found a position with a wide view and convenient concealment, set up their machine guns, and watched as Wilson and Giggie took their guns and touched the bottom of the mountain. The two men looked at the foot of the hill for a moment, and Wilson took off his clothes, wrapped something from the ground, and trotted back, while Giagi stayed where he was.

"Boss, there's something weird here. Wilson spread out his clothes and threw the thing on the ground, and the captain of Team I took a closer look, and it turned out to be the calf that had just been knocked away.

"Weird?" muttered the captain of Team I, who also felt that something was wrong, but what was wrong, he couldn't tell.

"There is no blood. "And the skin is already festering, like it has been burned." "Actually, it's not a burn, it's the effect of acid corrosion. Without the washing of these acidic solutions, the bodies of the undead would have been eaten by the ubiquitous germs. But as a result of washing, the bacteria are corroded along with the skin.

"yes, where did the blood go?!" the captain of Team I said suspiciously, "Tom!!!" After calling twice, he remembered that Tom had gone to deliver the news to Team C and Team F, so he had to shout loudly: "Hold your position, always be vigilant, and don't go any further." Wilson, you go to the hole where we came in, there's a radio station over there, and ask them to send scientists, it's not something that our big men can solve. ”

At this time, the C and F teams also slowly followed, and together they established a defensive line at the bottom of the mountain. Since engineering trucks could not be driven in, all the fortifications had to be completed with two hands and a sapper shovel. Fortunately, despite their work, no enemy came to disturb them.

Seeing the scout's broken legs, Tilly's worries intensified, and her image of the weapons of the human army was still at the level of the two world wars of the last century. And these days, Lu Jingzhi also came to talk to her about the military situation in the world, and especially mentioned nuclear weapons and biological weapons. Nuclear weapons can instantly destroy everything in hundreds of square kilometers, and biological weapons are the natural enemies of the undead, as long as they are invaded by scavenging bacteria, they can only give up their bodies and destroy them. If an infected body is left unchecked, it will become a medium for bacteria, causing more infections.

As if seeing Tilly's worries, Lu Jingzhi explained: "Don't worry too much about these two weapons, humans themselves use them less. "If the sky is full of nuclear and biochemical weapons, human beings will not live long. "In human warfare, conventional weapons are used the most, and as long as resources are controlled, the war is won. ”

"Tell me about the weapons they can bring in. Tilly asked Lu Jingzhi. Although nuclear weapons are powerful, as long as they do not go out, whether it is missiles or airplanes, they will not be able to get in, and biological weapons also need means of delivery, and the most urgent threat at present is conventional weapons.

"What can be brought in, the biggest threat to the undead army may be RPG or recoilless gun, equipped with an armor-piercing warhead is an anti-armor weapon, equipped with a high-explosive warhead is a weapon against infantry, and the maximum diameter of the bullet can reach 120 mm. Lu Jingzhi thought for a while, and then said: "The .50 machine gun is known to cause great harm to undead cavalry and even high-ranking knights, and its bullet caliber is only 12.7 mm. There is also a 20 mm cannon that can be moved in, which is even more powerful and almost impossible to fight head-on. ”

Tilly had seen both weapons, and Kirbosno, who served under her command, now the Great Undead of Kyiv, once had an army armed to the teeth, with the same .50 machine guns and 20mm anti-aircraft cannons. There were even more weapons, such as 14.5mm heavy machine guns, 76.2mm anti-tank guns, 122mm and even 152mm heavy plus howitzers, etc. However, those heavy artillery pieces had to be pulled by carts, relying on human and animal power, and could hardly be moved.

Lu Jingzhi has only seen war in the game, and Tilly has only said it through his great undead Kiev, and he doesn't know much about war. In fact, human beings can bring in more and more powerful weapons, such as flamethrowers, large-caliber mortars, etc., but I just didn't think about it, and I didn't understand it at all.

"If you were given the time, would you be able to make these heavy machine guns, grenade launchers, or whatever? Tilly asked.

Lu Jingzhi thought for a while and replied, "That will take several months." I've been making these grenades for almost half a month. ”

Tilly thought for a moment, shook her head, and said, "There isn't that much time available, we only have a week, and you have to make it on the march." ”

Lu Jingzhi said: "We are marching again, where are we going this time?"

Tilly sighed, "Get out of here, the power of the laws here is too weak to protect us. With that, he turned to the maid beside him and said, "Go and call the commanders of the battalions, and I will announce something." ”

The scientists have been here for a long time, but they have not been in because it is not safe in the cave. They want to know in what specific circumstances the radio will lose its effectiveness and why the car will stall for no apparent reason. When Wilson emerged from the mouth of the cavern with a stump of his leg, he was immediately greeted by someone.

"We need scientists. Wilson shouted, "There's so much unbelievable going on, which scientist can explain it for us?"

A sergeant-like man approached him, told him to shut up, and took what he was holding. "Go over there and take a break, then carry out your mission. The sergeant said.

What do scientists think of this cave, what kind of war will break out between the undead and humans, and what will happen next, and what will happen next.