Everyone fought zombies on the city wall for a short while, and the car of the patrol team that had been agreed with Captain Guo drove over, and gave a signal to the wall, and the captain asked everyone to save effort and wait for the people below to start work. The patrol team did not get out of the armored car out of prudence, but stood on the car and fired outward as everyone before, and the people on the city wall resumed shooting to cooperate with the patrol team.

Recently, the number of zombies surrounding the city wall has increased dramatically, and as soon as they shoot here, the zombies not far away will also sway over after hearing the sound, and the number of zombies has gathered more and more, until it is almost time to take a lunch break to barely clean up the zombies here. But even so, there are still many zombies in the distance swaying towards here.

Captain Guo stood on the city wall and shouted to the people below: "Find a way to move this pile of zombies!" We're going to have to expand to a metre outside! They've blocked all the places! "Before, Yan Fei and the others had to give priority to deepening the foundation of the six-meter wall that they already had because the zombies were crowded below, and then squeezed out of the soil little by little with metal. Now I can finally get the bodies out of the way.

When the earth-based powerhouses not far away heard his words, they suddenly realized - no wonder they wanted to fight zombies! The thickening of the city wall by the earth type ability is to expand the thickness of the city, and the metal system can only expand to the outside, how do they operate if these zombies are all blocked under the city wall?

The person in charge of the convoy under the city wall rushed up and made an OK gesture: "Come soon, I'll call someone to drive the bulldozer!" ”

Bulldozer?

Ahem, look at the hill-like zombie corpses below, this pile really has to be moved by those bulldozers.

At lunchtime, the outside of the city wall finally used this time to transport all the corpses of the zombies, and Yan Fei and they hurriedly went up to mark the site after lunch - first block the points one meter away from the city wall with metal in advance, so as not to be blocked by zombies in the afternoon. After the zombie corpses were transported, the work was finally able to start smoothly.

The corpses of the zombies that were transported were all piled up in a clearing outside the base and burned collectively, and the thick black smoke completely burned all the stenching corpses. After that, a trustworthy person will be sent to collect the crystal nucleus from the ashes...... This is the daily work of the patrol teams responsible for the security of the perimeter of the base and by the way, who are also responsible for cleaning up the zombies.

The number of zombies surrounding the neighborhood in the afternoon was obviously not as large as in the morning, so the convoy outside the city had already left here to carry out a new round of cleanup work in other places where the zombies gathered. But after a short while, a soldier hurriedly ran up the wall and called Captain Guo over, and it didn't take long for Captain Guo to come over with a bag: "This is the spoils of war in the morning, and it is estimated that there will not be many zombies here before we leave in the afternoon, so they will not come in the afternoon, and they will continue tomorrow." ”

"Captain, how much did you get?" Several soldiers who had nothing to do for the time being hurriedly gathered around and asked curiously.

"It seems like there are more than 200 of them, right?" Captain Guo looked under the city wall, it was okay, and now the zombies surrounding him had not affected the work of the Abilities, so he took the bag and began to divide the crystal nuclei for the four Abilities. When I saw a few pieces with obviously different colors, I was stunned, "Huh? It's very generous, they even divided some second-level crystal nuclei! ”

Although it is not certain what the highest level of zombies is, since this thing will evolve, the researchers in the base are still more conservative according to everyone's habit to define those zombies who have just had a crystal nucleus as "first-level zombies", and zombies with different abilities and changes in the color of the crystal nucleus after evolution are defined as "second-level zombies", and the crystal nucleus in their brains is the same......

Well, if you count the zombies who were slow at the beginning and didn't have crystal stones in their heads, the latest zombies should be considered the third level, but who let those zombies stay for a short time, and then everyone was graded according to the crystal nucleus, and pushed back to the zombies to make them downgraded?

As a result, those zombies who didn't have time to grow stones in their heads were called "junior zombies" by everyone.

Although these second-level crystal nuclei are good things, it is a pity that today's metal-based abilities can't be used, so they can only be casually distributed to everyone first, so that everyone can go back and find other abilities to change if they have time - although everyone doesn't know what kind of virtue the second-level metal crystal nucleus has grown.

After putting away the crystal nucleus, everyone continued to work until three o'clock in the afternoon before they walked down the fence and returned to the truck, swaying all the way back to the camp.

Luo Xun took back the big crossbow in his hand into his backpack and took out the small crossbow, and suddenly found that his mobile phone in the backpack was flashing - there was a missed call.

"Huh? It's Professor Xu. The phone showed that it was called at one o'clock in the afternoon, and at that time, Luo Xun and the others had just returned to the fence, and they were busy carrying small pieces of metal for Yan Fei and them, so they didn't hear the phone ringing, and hurriedly dialed back.

"It's Xiao Luo, right? The research report on the mushrooms you planted has come out, so it's best not to plant them, and it's better to burn them all and keep them alone. ”

Professor Xu's voice came out of the phone, and what he said surprised Luo Xun and hurriedly asked, "Is there anything wrong with those mushrooms?" "It's not like he hasn't raised mushrooms in his previous life, although the mutation rate of mushrooms is extremely high and it is very difficult to raise, but when he lived in the basement in his last life, he slept with them every day without any influence.

If this thing is really in great danger, he will not be able to take risks in his life, and it is only with the experience of the previous life that he dares to try it again at home.

Professor Xu explained: "After our research, those mushrooms have found that once their juice is taken out and splashed on the surface of the human body, it will be very corrosive, and it will hurt people if you are not careful!" So it's best not to try to grow this kind of thing at home, it's too dangerous, and it's best to wear protective measures such as rubber gloves when picking, and don't let them touch the skin! ”

Luo Xun was stunned, looked at Yan Fei who was waiting on the side in surprise, and blinked in response--there is actually Yan zhòng corrosive? Hurts the skin a lot? Fortunately, I have always been accustomed to wearing gloves when handling these dangerous plants...... Wait a minute! "Professor Xu, is this thing corrosive to other things? Like metal? Like what...... Zombie? ”

"Metal and mourning...... Corpse? Professor Xu obviously didn't react, these two things are two completely different categories, Luo Xun can't be a slip of the tongue, right?

"That's right! Zombie! Aren't zombies also human? If you use this poisonous mushroom to get it on a weapon, if it doesn't corrode the metal, you can't use it to cut zombies? "Luo Xun has always regretted that he doesn't have too strong combat power when dealing with high-level zombies in the future, and he has thought about it before, how good would it be if there was some poison that could soak in those crossbow arrows, and its power was comparable to the explosive power of gunpowder?

But he also knows that zombies are already dead, and even if you have a powerful poison, you can't poison them again! So the idea is just YY. So now, as soon as he heard about the special effects of mushrooms, his mind immediately turned to this, which shows how strong his hope is for this.

"You wait! Wait a minute! I told people to go to the real yàn! Luo Xun's words undoubtedly opened a window to a new world for Professor Xu, if this possibility was proved feasible once realized...... God knows what a great discovery it will be! What a great achievement and distinction he would have received as a botanist who studied whether plants could be eaten or not!!

When the mood was agitated, Professor Xu hung up the phone directly and rushed into the real yàn room, looking for someone to ask the zombies to come back to the real yàn mushroom juice to see if he could get the desired result.

Luo Xun looked at the phone in his hand that had been hung up, and smiled helplessly at Yan Fei: "He's so excited......"

Yan Fei smiled and helped him put away his mobile phone and took the backpack: "It's not easy to know the real result?" Let's go back and pick a few mushrooms and get them rotten, smear them on the crossbow and arrows and soak them overnight, and take them to the city wall tomorrow to see if the effect will be over? "It should be glad that they are now working on the perimeter wall, otherwise how could there be such a convenient place?

"Okay, I'll try it when I go back!" Luo Xun's eyes flashed with excitement, "Although those mushrooms grow a little weird, they grow at an astonishing rate after the end of the world, and it won't take long to harvest one batch and grow a second batch!" ”

The two of them drove home happily and went straight to the greenhouse of 1603, and after opening the door, they looked at the few small red mushroom heads scattered on the bare mushroom trees, Luo Xun couldn't help frowning: "Why is it so big?" And the number is too small...... "Before, their mushroom wood was like a growth agent, and a lot of it could emerge almost a day, and the growth rate was slow, and they couldn't control it, so they had to burn a batch every day or two, but why did it grow so slow now?"

"Could it be that the wood has been used for too long?" Yan Fei didn't know much about the growth habits of this thing, so he could only guess.

"No, it's not yet. Why did you ...... after moving the place this time" Luo Xun was suddenly stunned in the middle of his words, "Move the place?" ”

"Something to do with moving them here?" Yan Fei also asked in surprise.

"Let's go! Check it out there! Luo Xun suddenly had an inexplicable intuition in his heart, he only felt that the decrease in the number of mushrooms on the mushroom wood was related to the fact that he had moved them this time, and this answer would be clear when he returned to the next door!

The two of them returned to the nursery room in the next room, and when they entered, they were first shocked by the condition of the incubator - a mutated zombie quail! And the corpse of a small quail that is dead, with only bones left!

"There's a mutant plant in the nursery box!" Yan Fei suddenly saw that in a seedling box beside him, almost one-fifth of the seedlings in the entire seedling box had changed color!

Luo Xun didn't speak, just raised his hand and poked the mutant quail to death with his crossbow, and then walked to the nursery box and looked at the hideous and terrifying-looking seedlings, but his eyes became brighter and brighter, and his expression became more and more excited-"I think I know why those mushrooms will grow less after moving over, and I also know why our family has always had fewer mutated plants than others, and the quails are all safe!" As he spoke, he turned his head to look at Yan Fei, and the expression on his face was not at all lost because of his own loss.

Yan Fei's mind also turned quickly, and his eyes also widened: "You mean...... Can they absorb potentially toxic substances?! So nothing else is allowed to mutate with the virus! ”

Luo Xun nodded vigorously, this is not just the experience he has gained in this life, because he has never been willing to throw away the broken wood in his previous life, and the basement is relatively dark and cannot be dried in the wood, and he is afraid of being picked up when he takes it out to dry, so Luo Xun has been keeping the piece of wood that will sprout poisonous mushrooms from time to time, hoping that it will one day grow some normal mushrooms that can satisfy the stomach.

It's a pity that he didn't achieve this goal until he was reborn, and it was because he still had such thoughts in this life that he deliberately got a few pieces of broken wood back and raised mushrooms again.

Because he has more time and space in this life, the wood he got back is very large and the amount is relatively large, but it is precisely for this reason that the seeds and animals raised by his family have a low mutation rate!!

"I'm going to bring them back!" Regardless of whether those mushrooms can have the effect of harming the zombies, Luo Xun has decided - if he is killed, he will not lose those woods!! Not only can you not throw it away, but you have to put it more at home!!

Yan Fei also laughed: "Okay, I'll move with you." ”

"I'll get more back next time I leave the base!"

"Okay, I'll look for it with you next time I go out." Yan Fei added a sentence in his stomach - it's a big deal to cut down two trees and transport all the wood back!

The two of them got back the wood that they had moved away a few days ago, and this time Luo Xun also deliberately adjusted their position when they were placed in the room, originally he piled all these woods in the corner of the wall, but now he put these woods under the seedling box, and asked Yan Fei to deliberately get some metal shelves out to adjust the position of everything.

Luo Xun breathed a sigh of relief by picking out those mutated seedlings that could never be used, and then burning the bones of the poor little quail that had been sacrificed together.

Professor Xu didn't call Luo Xun back until the evening, Luo Xun can understand this, after all, he is just an ordinary person, if the mushroom really has that effect, the military will definitely ask Professor Xu to keep it secret after learning about it, and the results will not be released until the results have been verified many times. Anyway, he and Yan Fei can verify this possibility through other means, so they are not in a hurry.

Luo Xun suspected at this time that if he wanted the mushrooms to grow faster, in addition to letting them grow next to other animals and plants that were susceptible to viruses, he could also use water that had not been purified at all and had been contaminated by viruses to humidify the plants they lived in.

It's just that Luo Xun decided to be good like this for the safety of his own family.

Before going to bed, the two scooped up some mushroom juice with a small glass, and evenly smeared a few crossbow arrows with this kind of thing, Yan Fei also used some metal to completely wrap and seal these disgusting things, preparing to let this "sandwich bullet" explode in the zombie's body under his own operation when he went to work on the wall tomorrow, and see how it works. The two of them fell asleep with some excitement and looked forward to the next day.

Early the next morning, Luo Xun got up early. Yan Fei sat on the bed and rubbed his hair, took a deep breath before getting up with him - that guy was overexcited last night, and he didn't want to sleep until he was tired of tossing him, but he didn't expect to get up again so early...... Didn't you work hard enough last night? I'll try to see it next time.

In a glass bottle were several metal crossbow arrows, which were also wrapped in red sap. Luo Xun took the bottle and observed it carefully, but because of the damage power of these things to the human body and skin, he didn't dare to touch it himself. After thinking about it, he took the rubber gloves that had been set aside and had been used once yesterday and carefully examined them before opening the bottle, reaching in and examining the hardness of the arrows—to see if they had been corrupted by the strange juices.

It was hard to start, and there was no problem at all when he pinched it hard, and Luo Xun breathed a sigh of relief. If this thing can even dissolve metal, then it will be troublesome, and their family can only produce this kind of ammunition, and it is impossible to find other materials for these things.

"How?" Yan Fei's voice came from behind.

Luo Xun took out the "bullets" and carefully put them into a rubber bag that had been prepared last night and wrapped them layer by layer: "There is no problem, we can find a chance to try it when we are on the city wall in a while." ”

Yan Fei glanced at the bag, and frowned slightly: "Try the effect today, if this thing can really be used, I'll make some hollow bullets and try to see if I can explode directly in the target's body even if I shoot with a crossbow, otherwise it will be too inconvenient to use." "The juice of that mushroom is completely afraid to touch the skin, and if it's in a bag like this, God knows if it will accidentally touch somewhere? What then? It's better to find a way to solve the problem at the root.

"Okay, but it still depends on the effect when you use it today." Luo Xun looked happy, but he didn't mind the inconvenience of the party, and wrapped seven or eight layers of the rubber bag before carefully putting it into the backpack.

After breakfast and carrying the ammunition that they wanted today, Luo Xun and the two waited for Li Tie and them to drive towards the barracks together. They didn't talk to Li Tie about the usefulness of poisonous mushrooms, mainly because the two of them hadn't tested this thing yet, so they would wait for the results to come out and then mention it to a few of them - there are many benefits of growing mushrooms, not only can reduce the mutation rate of their own vegetables, but also have special mushrooms to harvest, such a good thing of killing two birds with one stone must of course be promoted internally.

Zhang Su also received his mobile phone card yesterday, and put it into the mobile phone that Wang Duo specially "bought" from Luo Xun before, and everyone exchanged mobile phone numbers before going to bed last night. The group was chatting in the car about the Earth-based Adepts.

“…… I asked our leader if he knew of any earth-based adepts willing to go out of the base to do missions. The leader said that the earth supernatural people are reluctant to go out now, because they think it is dangerous outside, and they don't have a safety guarantee to go out with the army when they go out to do tasks with the team, so few people are willing to go out privately, but they can help us ask. Li Tie said, the expression on his face was a little unhappy, "He said that even if someone is willing to take the task and go out, I am afraid that they will have to be hired at a high price, and it is estimated that the price will not be cheap, so let's be mentally prepared." ”

Yan Fei said directly: "It's not necessary, we hope to have an earth-based ability to cooperate, but it doesn't have to be." In the past two days, we have to dig the foundation of the fence into the soil when we build the wall, and after getting acquainted with this month, we should be able to make a trap relatively easily when we go out again. What he didn't say was that he and Luo Xun both had a four-day vacation this month, and if it really didn't work, they could go out directly in advance and go to the place where they stayed last time to dig traps in advance.

But that would be too risky, and it was destined that he and Luo Xun would need to temporarily team up with other teams when they went out, and it would be too dangerous if there were only the two of them, and there was no need to do it if it wasn't necessary.

However, Li Tie and the others did not bother with anything because of this matter, and when they heard that Yan Fei's recent work was related to digging pits, several people immediately became elated: "This is the best, this is the best!" "The reason why it is difficult to find earth-based abilities now is entirely because this kind of talent is monopolized by the military, if it weren't for this, the number of earth-based abilities is actually more than the vast majority of powers, how can it be like a master?

Zhang Su has been sitting in the carriage with his eyes closed and has not participated in their discussion, he has been absorbing those crystal nuclei to improve his strength recently, and every night after returning back, the big iron sandbags that Yan Fei helped him make were all scarred by him, and it would not take a few days for Yan Fei to help him reshape and restore his original state. As the crystal nucleus was consumed, he did feel that the control, use, and power of the ability had increased, but it was not enough...... He still needs more crystal nuclei to increase and improve, so he is very much looking forward to the next day of going out of the city.

The car stopped at the gate of the barracks, and Li Tie said to Luo Xun when he was leaving: "Let's bring gasoline back when we go back today!" ”

Luo Xun and the others drove everyone to the barracks every day, and Li Tie and the others were simply responsible for exchanging points for gasoline, because the nature of their work was relatively cheap, and they could use the internal price to exchange the gasoline at the window inside the barracks, which was much cheaper than buying it from outside.

Luo Xun and his family locked the car and hurriedly rushed to the small square in the barracks, and from a distance, they could already see that the southern wall had all been built and was expanding in several other directions.

Ride back to the perimeter wall, yesterday's work is in the trial stage, so everyone's progress is not fast, but the location of the foundation has been selected and tested, and the next work can be carried out smoothly once it is proficient.

Climbing up the tall stairs to the top of the city wall, looking at the zombies below who kept waving upwards to say hello, Luo Xun felt for the first time that the faces of these zombies looked so cute. Touching the backpack on his back, he forced the excitement in his heart, now is not the time, wait to be real......