System into the end of the world

Chapter 160

After persisting for one night, I couldn't wait for the bugs to retreat.The next morning without even eating, Yu Nan followed Zhan Xuyang to the outside of the city. She was afraid that she would accidentally spit out what she had just eaten.

"It's disgusting." Yu Nan checked the firmness of the gas mask, and walked to the city wall with a shovel.Zhan Xuyang stood by to help her guard, in case any insects slipped through the net and crawled to her.

The "booming" sound of the flamethrower kept ringing around them, but Yu Nan didn't hear it. He quickly dug a hole, planted the blood-sucking fern, and then urged it to a suitable size.The reason why the vampire fern is planted is because of its length, which is only about one meter. If you plant it under the wall, you will not be caught by it if you pay attention to it. And this distance can easily roll up the small bugs that throw themselves into the net , preventing them from climbing up the base of the wall.

After working for a while, he sent a few soldiers from the east to help. Considering that they could not help in other aspects, Zhan Xuyang simply arranged for them to dig a hole in front.

The blood-sucking ferns must be planted densely to be effective. After a busy morning, they were only planted more than ten meters away.

Zhan Xuyang looked at the time, "Okay, it's time to eat, let's go back to eat first. Don't be too busy, let's go together." After he finished speaking, he called out to several soldiers who came to help.

"Yes!" The soldiers saluted.

It was already past lunch time, and there were not many people eating in the cafeteria. Zhan Xuyang called those people together and started a small stove together.

"You still have a lot to do, don't you? You don't have to stay with me in the afternoon. There are so many people. The bugs can't reach me anyway." Yu Nan said while eating.Seeing that he was about to open his mouth to object, she added, "If you are worried, let Niu Hongxin follow me." With the guards around, he couldn't say anything.

Zhan Xuyang scratched her palm with his hand under the table, and put another piece of pigskin into her bowl, "Supplement collagen, eat more."

"..." There are nutrients to eat every month, so there is no need to supplement anything, okay?
"Okay, let Niu Hongxin and Zhang Zhe follow you." Zhang Zhe is Zhan Xuyang's guard.

"Yeah." Yu Nan nodded, and then turned to those soldiers, "You guys should come over to help these two days first, by the way, which team are you in? I'll go and say hello to your leaders later."

"No need, City Master Yu, when Minister Cong asked us to come, our captain was by his side, and he said he would let us go back when the task was completed." A soldier replied, as if he was a little embarrassed, as he continued Just blushed.

Yu Nan looked funny, and couldn't help laughing. Zhan Xuyang pinched his palm a little bit, and then restrained himself.

After dinner, Zhan Xuyang went to work, and Yu Nan rested with the others for a while, and waited until the sun was not so poisonous before calling two guards out of the city.The blood-sucking ferns planted in the morning were not in good condition, so Yu Nan lost some powers one by one to see them stand upright again before continuing with the work in the morning.

"Let them put some bugs over there to see the effect." Yu Nan looked at the seemingly harmless blood-sucking ferns behind him, and said to Niu Hongxin.

"Hey, okay." Niu Hongxin agreed, and went to complete her order.

With living people around, those bugs were not happy to rush to the "embrace of blood-sucking fern". After several attempts, the effect could not be verified. Zhang Zhe watched anxiously, and directly picked up a group of bugs with a knife and threw them To the blood-sucking fern.A lump of bugs the size of a basketball was immediately eaten up as soon as it entered the attack range of the vampire fern, and even two adjacent fern branches fought violently.

Yu Nan made a "tsk" sound, "Go ahead and tell others to be careful. No matter what the situation is, they are not allowed to come within two meters of the blood-sucking fern, or you will bear the consequences."

"Yes."

While she was busy planting blood-sucking ferns in the past few days, news came from the Institute of Biology that the desiccant they sent had very serious side effects. It may last for decades or even centuries.Whether it is soil or cement, any substance containing water will be affected by this.Don’t try to take the polluted soil away to solve the problem. Even if it is dug away, if it cannot be destroyed, it will just change to another place to continue to pollute, and once it dissolves with water again, it will form a secondary soil. , or even repeated pollution until the desiccant components are completely destroyed.

Perhaps this is the reason why country M researched this medicine but never put it into use.

This shortcut doesn't work, so in the future, we can only continue to proceed step by step, lure and kill zombies honestly.

Planting the blood-sucking fern for a week does not mean that Nan has brought the entire base into the protection range of plants, and the number of bugs crawling out of the water has been much reduced.Vehicles that had been trapped on the nearby highway for many days and could not move forward poured out one after another. A few of them passed through Star City for a temporary rest, but most of them were survivors who came to settle in the name of Star City, especially in many bases. After being attacked and captured by giant zombie sea creatures, this enthusiasm reached new heights.

The protective cover was closed, and life in the city returned to normal, but soldiers were still sent out every day to clean up the bugs. However, with the help of the blood-sucking fern, it was enough to clean up the front of the door and the blank area that had not yet been planted.Sun Yanguang's "healing solution" has been prepared, but Yu Nan has been busy all the time, so he didn't bother to go to him to get the finished product.

It took another three days to plant the last part of the blood-sucking fern, and it only needs to be maintained every other day with supernatural powers.In fact, Yu Nan also knows that this is only a solution to the symptoms but not the root cause. In the blink of an eye, it will be September, and the temperature in the Mongolian area will drop immediately. Even if these ferns are supported by her supernatural power, they will not survive for a few days. up.

"It's been hard for you to come in and out with me these days and suffer from the sun. Let's go, I'll treat you to some fruits. You can pick the fruits in the warm shed in the city center as you like." Yu Nan and others entered the city gate, and she He turned to them and said. "By the way, it's best to push a cart here and pick more fruits to send to the canteen of the military area."

"Huh? All right, then I'll go to the cafeteria to borrow a trolley." Zhang Zhe immediately said happily.He, Niu Hongxin, and Yu Nan were quite familiar, and they talked a lot more casually. Anyway, it was not the first time to pick fruit from her, so when she said it, he immediately agreed.

"Did you bring the keys? I'll take them in first to pick them up." Yu Nan asked.The two direct guards have the ability key she prepared in advance.

"Bring it, you go first."

After leaving in front of the city hall, Zhang Zhe went to borrow a trolley, while Yu Nan led the rest of the people into the city center.

"Okay, you guys are free to pick what you like to eat, and pick as much as possible for the rest, otherwise they will be overripe." Taking them to the greenhouse, Yu Nan said.

A few people ran in happily, Yu Nan shook his head and laughed.After standing at the door for a while, she saw Zhang Zhe walking over quickly pushing the cart. She pointed to the inside and let him go in directly.

"This, this, this, this is delicious... hey, don't fight me..." "What kind of fruit is this? I've never seen it before."

Guessing that they wouldn't be able to come out for a while, Yu Nan thought about it, pasted a note on the door to leave a message for them, and then went back to the tree house.He took a shower and changed his clothes, and just after tidying up, he heard Niu Hongxin knocking on the door downstairs.Yu Nan opened the door and went to the balcony, glanced at the cart loaded on the tip, smiled slightly, "Pick it after eating, otherwise I will often worry about the fruit ripening too fast to finish. Niu Hongxin and Zhang Zhe both have keys, let them They're coming with you."

"It's enough to eat, and the fruits outside are quite delicious, but there are not as many kinds as you have here." A soldier said, Yu Nan remembered that it seemed to be Sun Dawei.

"That's right, there's only one kind of greenhouse outside. Can't you plant many kinds at once like you do here?" Another soldier asked.

Yu Nan smiled and shook his head, "That's not acceptable. I use supernatural powers to plant here, so I don't have high requirements for the growth conditions of fruit trees. But it's not good outside. Every kind of fruit tree needs different growth conditions. If so many varieties are put together, wouldn’t it be a mess?”

"Oh, I see." The soldier scratched his head.

"City Master, let's go back first." Niu Hongxin looked up at her and said.

"Go back and have a good rest. You have worked hard these few days." Yu Nan nodded and said.It's inconvenient to shout upstairs and downstairs, and she didn't intend to invite them to sit in the house. They are not familiar with them at first, but they will be more cautious when they come, why bother.

After watching them leave the city center, Yu Nan returned to the room.She still has energy crystals to swipe. Although she doesn't buy much from the energy value mall now, the pressure to buy Star City is still on her head. I don't know how long it takes to save enough.Maybe she should buy a central brain first, maybe it can help make Star City.Besides, even if it can't be made, its level is much higher than that of Geng Zhou and the others. Now many equipment that can't be made can also be realized through it.

In this way, it is more cost-effective to save enough energy at one time to buy an advanced artificial intelligence. One investment and long-term returns are perfect.Now the highest level is the Central Intellectual Brain, which requires 500 million energy points, and there are cheaper ones, such as 300 million and 100 million. As for those below 100 million, there are relatively few things that can be done, and she will not consider it for the time being. .

With time, Yu Nan finally freed up to arrange the inspection of the "recovery solution".Ask Zhan Xuyang to help her deliver the recovery fluid to the office building, and ask Mu Dong to bring a newly-made recovery instrument. "Okay, you go back first, Mu Dong is the rest." Yu Nan said to Zhan Xuyang.

"Okay, call me if you need something." He nodded and left in peace.

"Pour it in for me." Yu Nan pointed to the large bucket of recovery liquid on the ground and said to Mu Dong.After finishing speaking, she turned on the system and used the background command to generate a "wounded white long-haired rabbit".Items like this kind of "injured" XX or "unfinished" XX can't be found in the mall, but you can find a lot of them by searching with background commands.

The long-haired rabbit's leg was bitten by something, and a large piece of meat was missing bloody.Yu Nan glanced at Mu Dong holding the potion that was being poured into the recovery instrument from the bucket, and waited for her to step back to the side, then put the little rabbit on it, and pressed the start button to the side.

"I don't know if it will work." Yu Nan said.Soon, the recovery instrument automatically detected the required amount of medicine, and began to run the repair program after stopping the injection of medicine, but she had a bad feeling just before it started.Some gray-green flesh-like tissue was newly formed on the rabbit's leg. I don't know if it was because of too much pain. Even in a comatose state, the rabbit still twitched non-stop.

She sighed and shook her head, "Failed." Looking at Mu Dong next to her, "How are you doing? Have you made any progress recently?" The production of the recovery instrument has been completed long ago, and no new tasks have been assigned to her. Mu Dong has been researching about the recovery fluid.

"One thing, can you give me some of this? There is also the formula, I want to see if there is any part that can be used for reference." Mu Dong pointed to the potion in the instrument and asked.

"Can it yourself." Yu Nan took out a clean glass bottle and handed it to her.Glancing at the display screen of the instrument, it really showed that the repair failed.The missing flesh and blood on the rabbit's legs were all filled with that gray-green substance, and no fur grew. At first glance, it looked like a piece of plasticine.

"Take out all the potion and clean it up again. Be sure to clean it up." Yu Nan urged.

"I understand, don't worry." Mu Dong put on the sample and said.

"Well, you are busy first. Before I give you a new task, you continue to study the recovery solution." Yu Nan waved his hand and walked out, taking out his mobile phone to inform Zhan Xuyang that the test failed.

(End of this chapter)