As luck would have it, the 2nd and 3rd "Evolution Elixirs" were made very well.

Like last time, Chen Xin first replenished the raw materials in the petri dish. Although he couldn't throw all the remaining raw materials into it at once, he also tried his best to use the theoretical knowledge he had gained from more than ten years of biological immersion on the earth to match the materials as reasonably as possible.

Although in terms of direction and creativity, the biology of the earth and the biology of the zombie world have their own very distinctive characteristics, but in terms of the backbone of the discipline, the two worlds still maintain a high degree of similarity.

Thanks to two different ideas, Chen Xin has been greatly inspired. In just two weeks of research, Chen Xin made some breakthroughs on the basis of the materials left by the research institute's personnel. Mainly in the speed and efficiency of cultivation.

After all, under the efficiency-led global capitalism, the earth's large-scale industrial development, drug manufacturing, and mass biological research and development requirements have in turn prompted the earth's biology to develop in this direction.

According to Chen Xin's estimates, the training that originally took half a year has increased by at least 10%, which is almost half a month less.

The time saved can be said to be very valuable in this crisis-ridden city.

The process of creating the "Evolution Elixir" was smooth, but Chen Xin's own evolutionary awakening was not particularly smooth. Especially for second-order ability generation, the evolution points that need to be consumed are enough. However, the energy to push the ability to complete the molding is far from enough. In other words, according to reason, Chen Xin should have a base value of about 1.4 now, but because of the lack of transformation energy, he is now only 1.3 times the base strength at most.

However, Chen Xin had already successfully made the gene induction agent before, which means that even in the wild, as long as the body reserves enough high-calorie food, he can generate abilities in the wild.

However, starting from the 2nd level, the ability is not a simple 1+, it is composed of multiple basic level 1 abilities, superimposed and optimized, involving the classification of many different disciplines, and even, two of the same basic abilities, but with different proportions, may generate completely different abilities.

Perhaps it was a problem of the division of work tasks, the original laboratory did not have in-depth research on the ability spectrum, and Chen Xin could not deduce the accurate "ability spectrum" from scratch in such a short period of time.

Therefore, he didn't know what kind of ability the gene induction potion he created this time could generate.

Since he can't control it, Chen Xin doesn't think much about it, and he doesn't bother to make a long-term plan for himself in terms of ability awakening, and the ghost knows what the next second-order ability will be, although according to the principle of continuation, there is a high probability that it is still an agile ability.

In the laboratory, there has always been no shortage of drug dispensers, so Chen Xin found one that looked particularly strong and stuffed it into the pocket of his underwear, the most secret place in his body. This pair of underwear was brought by Chen Xin from the earth, which is very commemorative, and it is said that it was originally a customized version used to hide private money.

The underwear hasn't been changed for a week, but the reason why he hasn't changed it is only known to Chen Xin himself, maybe he doesn't want to have any time to be bare-assed, or maybe it's just a bad habit brought from the laboratory.

Wait until the injection of the "Evolution Potion" is completed, and the state is almost recovered. Chen Xin began to pack his package and used a mountaineering backpack left behind by an unknown researcher.

It doesn't matter what it looks like, the main reason for the choice is that it is relatively strong, and there are enough pockets to put the rest of the food and ammunition in it, although there are not many remaining rations.

There is not much ammunition in the entire research institute, after all, the three rifles in this research institute were originally only equipped for security personnel, not for combat and positional attacks, and each gun only had 1 base ammunition.

The first two times, in order to feed Xu Lichenghuan, a base number of ammunition has been used. Originally, the standard of a base was that an adult soldier carried the weight of a day at the balance point where the day's march would not cause fatigue.

Chen Xin, who had been strengthened by the "Evolution Elixir", didn't feel very heavy for a while carrying 2 base ammunition, even if it was heavy, there was nothing he could do, because he had already made up his mind to come back to the research institute as little as possible to avoid the possibility of exposure.

Regarding the future, Chen Xin already has a vague plan, but everything is based on the premise that this research institute can be intact.

It was still very quick to pack up things, but Chen Xin was not in a hurry to go out immediately. After all, he hasn't gone out for so long, and he doesn't know what's going on outside, so maybe there will be a large group of zombies guarding the door. In order to save electricity, he turned off the hidden surveillance.

Chen Xin patiently spent half an hour restarting the covert camera, and then carefully observed the situation outside the alloy door for another half hour. "Luckily, there wasn't a single zombie." Chen Xin could almost conclude that he turned off the screen and said.

Speaking of zombies, Chen Xin still has lingering palpitations about the zombie he saw on the first floor of the unfinished building before, who may have drunk human brains like coconut water. The reason for the palpitations was that he didn't have any information at all, and there was no description of this zombie in Chen Xin's impression or in his description.

The unknown is the most terrifying. Chen Xin is constantly making up in his brain. However, be careful to sail the 10,000-year-old ship, in less than a month after coming to this world, I have only gone out twice, and I have suffered many losses, if it weren't for my luck, it is estimated that it has been fermented in the belly of a zombie now.

Leaving the unfinished building, Chen Xin still chose a more familiar direction, that is, the direction leading to the port.

But he knew there wouldn't be much food left here, because it was too close to the port! The people in the port settlement should have already swept away all the food that can be found or easily obtained, but the zombies have not been much less because of the human material search activities, because the people in this settlement are not as stupid as they are shown on TV and movies, killing zombies to collect supplies. According to Hu Ningsheng's division of labor for materials, there is still a strong concept of tactics and teamwork.

Of course, choosing to go in the direction of the port, Chen Xin also wanted to see if he could meet Xu Licheng by chance, and he also wanted to get some information from Xu Licheng, especially after Hu Ningsheng was killed by him, what changes had happened to the port.

According to what Hu Ning told him before his death, his cousin was a person from the "company", and in such a world without any rules and laws, to face such a big force is also a lot of psychological pressure for Chen Xin now. However, Hu Ningsheng does not represent the "company", and even Chen Xin is sure that he should not be a formal member of the company, otherwise the "company" would not have allowed him to stay in the laboratory for so long, and he didn't believe that the real company bigwigs would put their relatives together. Face to face at the forefront of all the zombies in the big cities of the Far East.

Chen Xin is just going to try his luck, Xu Licheng is best if he knows, and if he doesn't know, he will pull him down. Even if Hu Ningsheng's port settlement does not welcome him, he is not worried, because the entire port area is very large, and there is not only one settlement, and from the previous exchange with Xu Licheng, he learned that there are three settlements in the port.

Logically speaking, the three settlements should have been established by people assigned by the "company", but as long as there are people there is strife, and there is no reason for all three settlements to turn him away.

After waiting for a while at the place where he made an appointment with Xu Licheng, he didn't see Xu Licheng appear, Chen Xin was not discouraged, today has passed the day agreed with Xu Licheng, and it is normal for no one to come. It's just that according to Chen Xin's observation, there has been no trace of human activities in this culvert and a large area around it in the past few days, and he has not seen any code left by Xu Licheng, which makes Chen Xin feel a little uneasy.

This means that this place, for the people of the port settlement, either no longer has any search value, or has become an inaccessible danger area.

"Whatever the reason, it's not good news," says Chen Xin, who is still exploring other culverts along the river, but still finds nothing. After some observation, Chen Xin decided not to continue in the direction of the port settlement, and he made up his mind to explore the road in the northwest direction. In the old days, the northwest was not the most prosperous core area of the city, and the number of zombies in the northwest should be much smaller than going east.

The sun outside was starting to heat up, and it was almost noon, and the light on Chen Xin's face made him feel a little itchy. According to Chen Xin's experimental observations of the virus in the past two days, this is actually a trace of viruses floating in the air that react to the skin under the sun's irradiation, similar to the tenacious athlete's foot in the old era, which accelerates reproduction and invasion of the skin under the sun's irradiation.

As an important barrier for humans to isolate the source of infection, the skin is originally very resistant to almost all viruses. But for this virus that has made the whole world fall, it is no longer the level that it did not "break the defense", as long as the timing is right and the concentration is sufficient, even the virus in the air can cause certain damage to the skin. If you stay in the sun for a long time, it is possible to gradually develop into redness, swelling and ulceration, and then mutate and transform into zombies.

As for why the sun can promote the reproduction of viruses, no one has figured out this mechanism, anyway, what is shown is that microwave energy can quickly promote the proliferation of viruses. This is also the reason why after the outbreak of the virus, the means of communication beyond distance are almost ineffective. Because where there are communication microwaves, the virus content will be terrifyingly high.

However, those who have survived until now have more or less some resistance to the virus. In order for a virus in the air to penetrate directly into the skin, it must be heated by microwave energy for a long time, or if there is a wound somewhere.

After all, the city is the city, and the number of zombies far exceeds the number of zombies around the unfinished building where Chen Xin was before and on the riverside embankment.

This time, there was no riverside embankment as a shortcut to action, Chen Xin tried his best to walk on the main road, in Chen Xin's opinion, the road that was too narrow was difficult to react quickly when it was suddenly attacked by zombies, and there was not enough depth to detour.

After walking two blocks, Chen Xin's location was already flanked by tall buildings with more than twenty floors, and further on, there were still many zombies wandering among the broken vehicles, and he knew that the battle was about to start again.

Chen Xin turned around and looked, and 50 meters behind him, there was a group of zombies densely packed together, slowly walking towards him.

Although they are moving very slowly, there are so many of them that it is still frightening to watch, especially since these zombies are still roaring all the way.

Chen Xin encountered a lot of zombies along the way, but most of the zombies were seriously decomposed, and the muscles of many zombies began to peel off, and some of the limbs were only supported by bones with black ash.

The zombies that moved fast and could keep up with Chen Xin had all been cut down by Chen Xin's own hands. Yes, it was chopped over with a knife.

Compared with the huge number of zombies in the city, the number of bullets in Chen Xin is really insignificant, since he has been immune to the virus, Chen Xin naturally used the machete left by Hu Ningsheng and his group before, and those few high-level zombies with signs of evolution

Started a cold weapon battle, and it can also avoid the sound of huge bullets to attract more zombies.

Fighting with cold weapons saved a lot of ammunition, but the six or seven small scars on Chen Xin's two arms also illustrated the price of not using guns.

Chen Xin decided not to do it anymore, although he has evolved to the second order, his physical fitness and recovery ability are about 30% faster than normal people, and it is not a way to be injured all the time, so far, the materials have not been found at all, and there are already seven or eight more wounds.

Looking at the zombies wandering in front of him, and then at the surrounding buildings, Chen Xin planned to go to the roadside and the community to try his luck.

There is a shop at the entrance, and the sign on the top of the shop has begun to turn yellow, and there are a lot of blood stains, but it can be seen that it is a mother and baby shop. The door and exterior wall of the store were a large piece of glass, through the glass, Chen Xin saw that two zombies were facing the direction where he was, constantly banging their heads against the glass, and the hit glass already had some white cracks that meandered through the entire glass window, and he didn't know if it was just knocked out, or if it had been like this all along.

Chen Xin's heart moved, he looked around, and saw a shared bicycle on the side of the road that had been seriously corroded.

The entire glass wall shattered into countless pieces of fine glass, and the shared bicycle continued to fly towards the wall, smashing on the zombie at once.

The zombies in the glass wall were crushed under the bicycle, struggling a few times before they got up, and the zombies in the distance heard the sound of glass breaking, regardless of whether they noticed Chen Xin before or not, they all turned their heads and looked in the direction of the mother and baby store.

Chen Xin originally planned to wait for the zombies to come out and kill them after breaking the window, but he didn't expect the zombies to be crushed under the bicycle, and saw that the zombies around him began to slowly surround here, Chen Xin waited for two seconds, and saw that there were no other zombies rushing out inside, so he lifted the machete and stepped into the mother and baby store.

The zombies under the bicycle are still struggling, but unfortunately the two zombies, or hands, feet or necks, are stuck by the bicycle, and both zombies want to get up, but they are pulled to balance each other.

Chen Xin looked at the zombies, one of them had long hair and suspected to be a female zombie's clothes, which were much more complete and fresher, and he knew that this zombie should have been infected by the attack not long ago.

Next to the female zombie, there is a can of baby milk powder, and the can of milk powder is full of red blood clots.

Chen Xin was silent, speculating that eighty percent of this female zombie may have died in this store for this can of milk powder before her death.

"Click" two knives, the knife in Chen Xinxin's hand, slashed steadily on the necks of the two zombies, and the bodies of the two zombies immediately stopped struggling.

Chen Xin picked up the milk powder on the side, and found that it was not broken, so he was lucky in the dark way, so he quickly took off his backpack and stuffed it inside.