After all, Xiao Nianqing is younger than Hu Ningsheng, and he runs a little faster. When he reached the first floor, he had already surpassed Hu Ningsheng and ran ahead.

And the stairwell keeps accelerating and decelerating, for Chen Xin, who has just mastered the ability, he can't give full play to the advantages of the "agility enhancement" ability.

After Hu Ningsheng and Xiao Young arrived on the first floor, they actually found Luo San and another young man who was left behind lying on their sides in a pool of blood at the top of the stairs.

Hu Ningsheng kicked Luo San when he passed him and shouted, "Luo San, let's go, get up quickly!" ”

However, Luo San didn't react, although they didn't know why, Chen Xin didn't seem to chase down the stairs upstairs, but they didn't dare to stop and check carefully what the situation was with the two brothers lying in a pool of blood, but they also knew that Luo San and the person who stayed behind were obviously unlucky.

They desperately ran towards the door, seeing that the young man was about to run out of the unfinished building, but found that Chen Xin was actually walking towards them with a gun from outside the gate of the unfinished building.

Chen Xin knew that jumping directly from the window on the second floor to the first floor would definitely be able to catch up with them.

The two of them were surprised when they saw Chen Xin, but before they could turn around, the gunshot had already sounded, "bang bang bang", and a large patch of blood appeared on the stomach of the little young man running in front, and then he fell to the ground with a butt.

Although it is an unfinished building, there is still only one gate, and Hu Ningsheng knows that he can't run away.

Hu Ningsheng was also simply, with his back to Chen Xin, he directly threw the machete in his hand on the ground, slowly knelt on the ground, and raised his hands behind his head.

Chen Xin walked over and found him kneeling on the ground, his hands on the back of his head, obviously ready to surrender.

"Brother Chen, Brother Chen, spare my dog's life and go around me once!" Hu Ningsheng is not one of those young people who don't know anything, he saw Chen Xin's speed and knew that he had met the awakened, and his distant cousin was also an awakened person, so he knew how terrifying this group of people was, if he had known that Chen Xin was an awakened person, he would not have dared to come to the door if he had ten dares.

Chen Xin walked behind him and said, "Mr. Hu, hello! What a coincidence, I can see you everywhere. ”

"Brother Chen, I'm just passing by, really just passing by!" Hu Ningsheng replied ridiculously, of course, Chen Xin was obviously also joking, crooked his mouth and smiled, his hand did not move away from the trigger, but raised the rifle, his eyes were on the aiming line, and he said in a condensed tone, "I ask, you answer!" ”

"Hey, hey, it must be, Brother Chen just ask!" Hu Ningsheng nodded frantically like a chicken pecking rice.

"How did you find here?"

Hu Ningsheng hesitated for a moment, and didn't know where to start.

"Bang!" A bullet slashed across the top of Hu Ningsheng's scalp, and Chen Xin raised the gun and fired one.

Hu Ningsheng shrank his neck in fright, holding his head in his hands as if in pain, "Footprints!" It's footprints! You've left footprints since the riverside, weeds along the way, and it hasn't rained, so if you look closely, you can see the traces of being trampled! ”

Chen Xin was a little speechless, thinking about it carefully, it should be as simple as that, when he came back from the river embankment for the first time, because he was still afraid of being followed and ambushed, he deliberately went around and around, and repeatedly stepped on several unpleasant points.

As a result, the deal with Xu Licheng was completed this time, because he felt that he was already an awakened person, so he didn't worry about being followed at all, so he went straight back to the research institute from the riverside without any cover-up.

"It's careless, it's just these pieces of waste that come with me this time, and I don't even have a gun. In case it is a high-level zombie, or a combat team, it is estimated that they are already cold now, at least the laboratory and the remaining 'evolution potion' will not be able to be saved. Chen Xin examined himself a little in his heart.

Thinking of the transaction just now, Chen Xin thought of some possibilities again, and asked lightly, "What about Xu Licheng?" Killed by you? ”

"How can it? Now he is probably already in the port and Jiayi's little slut is talking to me. Speaking of Xu Licheng, Hu Ningsheng is also on fire, if it weren't for him, he wouldn't have fallen to the point he is now, even if someone pointed a gun at his head, he couldn't help but lose a sentence.

When Chen Xin asked this, he was actually afraid that Xu Licheng would connect with Hu Ningsheng, but logically speaking, Xu Licheng had no motive to do so, but he was also afraid that this time Hu Ningsheng was born, and Xu Licheng saw that he was only one person from the clues, and he coveted the food and weapons in his hand and revealed it to Hu Ningsheng, so he tested it, but fortunately, he immediately ruled out this possibility.

The situation was not as bad as he thought, Chen Xin was in a much better mood, and seeing that Hu Ningsheng was so unconvinced, it was estimated that he had suffered a lot from Xu Licheng, and Chen Xin's tone was also a little softer, "Is there anything wrong with you coming to me?" ”

Hu Ningsheng and Chen Xin both knew in their hearts that Hu Ningsheng brought such a person to block the door, the purpose could only be to kill people and sell goods, but whether to ask or not to answer is another matter.

Hu Ningsheng didn't dare to answer truthfully at this time, for fear that this Chen Xin would hear the truth and shoot him down, but just now he had already guessed that Chen Xin would ask this, and blurted out, "Brother Chen, Xu Licheng, that kid is too ignorant of current affairs, your bullets are first-class, one magazine for 5 cans is more than enough, if you are familiar with the management committee, you can replace 6 cans or 7 cans." I think Brother Chen, you are too disadvantaged, and if you think that Brother Chen still has goods in the future, you will hand them over to me Xiaohu. It's as simple as that, I came to Brother Chen, just to talk about this business, I can also talk at the port, it's really not worth it for you to be earned! I'm not greedy, in the future, Brother Chen's magazine, no matter whether the quality is good or bad, I will give the price of 5 cans! ”

If it weren't for the alarm and hidden monitoring of the alloy door in the base, and Chen Xin happened to see the posture of them surrounding him to ambush him, he might have really believed Hu Ningsheng's words, although he held his head in his hands, but he replied to him with a hearty word, and it seemed that he was really careful.

Chen Xin didn't say anything, and asked lightly, "Have you ever seen the Awakened?" ”

Hu Ningsheng's eyes began to drift a little, probably because he didn't know how to answer.

"I don't have to put garlic on it. Just now when I was activating my abilities. I know you when I see your expression, and you've definitely seen people like you before. Isn't it? ”

Hu Ningsheng's eyes gurgled in a circle, and he thought for a second or two and said, "Uh... My cousin is the Awakened, and if I cut him with all my might, I could only cut a mark. However, he told me about Brother Chen, a speed superpowerhouse like you! ”

"Superpower! Is your cousin a 'company' guy? Chen Xin heard Hu Ningsheng's answer, raised his head and looked at Hu Ningsheng, his eyes narrowed, and it seemed that he had thought of something.

In the "Wasteland Survival Handbook", the major forces call the awakened differently, and as one of the powerful forces in the East China Sea, the "company" refers to the awakened as "superpower".

Chen Xin didn't expect that such a weak chicken character in front of him, who didn't even have the opportunity to appear in the "Wasteland Survival Handbook", could actually be related to intercontinental-level forces.

"Huh? Brother Chen, have you also heard of 'company'? Hu Ningsheng is even more remorseful now, obviously this Brother Chen is also a big boss level figure behind the scenes, at least he has a fight with his distant cousin, he must belong to a big force, and he is a superpower.

"Hehe, I know a few people." Chen Xin lowered his head again and stared at the crosshair.

"Brother Chen, if you don't fight, you don't know each other, you come to the port another day, I'll look for my brother..."

"Bang!" Before Hu Ning could finish speaking, his head exploded, like a smashed coconut shell, and a burst of bright red blood flickered.

The young man who had broken his leg before was still covering his wounds, screaming miserably and lying on his side not far away, after seeing Hu Ningsheng being shot in the head, his body fell forward and hit the ground, revealing Chen Xin behind him. With a look of fear on his face, he tried to stand up, twisting his body desperately, and actually half sat up, looking at Chen Xin with a desperate and pitiful expression, and opened his mouth wide to say something.

"It's a pity! If it weren't for the fact that I couldn't let anyone know about the things in this base, I might have let you go and made a deal with you. But—" Chen Xin muttered to himself, as if to the half-seated young man in the distance.

"Bang bang!" The half-seated young man also fell to the side, half of his body arched, in Chen Xin's opinion, it should be convulsions caused by excessive blood loss, this reaction is not much different from the animal experiments he did in the laboratory before, at least the physiological reaction is similar.

Chen Xin closed his eyes and didn't continue, the people at the scene were all dead, but he was not interested in dealing with the aftermath.

The dead here are all alive, and the zombies attracted by the sound of guns will soon have a chance to clean up the scene, and even most of the blood on the ground can be licked and eaten.

All he had to do was leave the scene in time and go back behind the alloy door of the institute, or, further afield.

In fact, the last two shots fired at the young people who had been shot, Chen Xin could completely solve them with the machetes brought by the young people, and he could also save two rounds of ammunition, but Chen Xin still had some mental obstacles, and using a gun and a knife were not the same for him.

For Chen Xin, before today, he was just a time-traveler, he didn't feel how cruel and miserable this era was, even if there were zombies everywhere outside, even if most of the people outside could only rummage through the ruins for food, surviving for a long time, he felt that these people were just people living in books.

But today, after he killed some living people with his own hands, he felt that the world in front of him was a real world, not just a scene of a novel.

Chen Xin had some fear and discomfort in his heart, but maybe because he knew that he had been immune to the virus, he finally let go of his burden, and he was still a little excited in his heart, after all, this world is freer, or lawless, he didn't even dare to think of biological experiments before, and some experiments that even the mentor who was known for his boldness did not approve, can slowly think about it. After all, he now has a biological laboratory at his disposal that is even more advanced than the previous university laboratories on Earth.

After the excitement, Chen Xin did not go back to the laboratory directly, but walked over to Luo San and another young man who stayed behind.

These two people were not killed by him, and obviously they would not have been killed by Hu Ningsheng, before he saw Hu Ningsheng from a distance outside the door and wanted to ask them to get up and go together.

In order to solve the doubts in his heart, Chen Xin walked to the side of the two corpses and looked at them, and found that there was no blood on their bodies, but the eyes of the two were empty.

He squatted down and examined it carefully, and found that the hair on the top of the two people's heads had two large holes as thick as fingers, and the holes were full of mucus, Chen Xin knew that it was cerebrospinal fluid, a colorless and transparent liquid that existed in the skull, and it would not appear on the top of the head according to reason.

Chen Xin turned on the flashlight he carried, shone it on the wound, and was shocked to find that his head was actually empty!

Nothing at all! You can even see part of the spine in the wound, and even the brain stem is missing.

Chen Xin had a guess that maybe there was a creature that cut two holes in the heads of these two people, and then sucked them with a straw, as if... In the old days, people killed coconuts?

A strange scene appeared in Chen Xin's head, but no matter what, these two people should not be done by other humans, this is enough for Chen Xin, more secrets will be learned when he is strong enough to have time.

Now he just wants to keep his laboratory and the "Evolution Potion" from being discovered by others, which is also the only "golden finger" he can use in this world at present, otherwise he would not have killed so many people in order to keep it a secret.

Chen Xin still chose to return to the laboratory, the heavy alloy door should be able to block the search of the zombies, after all, the smell of blood in the laboratory is not heavy, as long as he does not make a particularly loud sound like death. For zombies, the alloy door is similar to the wall, and they will not attack the wall unless there is an obvious abnormal noise from human activity inside.

Hu Ningsheng's footprints all the way, Chen Xin has no interest in cleaning up again, wait a while, there will definitely be countless zombies passing by here, and any footprints will definitely be covered by the footprints of other zombies.

Next, it is necessary to persist in the laboratory for two weeks, not because there is not enough food, this time the deal with Xu Licheng has allowed him to reserve food for more than two weeks. Of course, he also made a deal with Xu Li, and he won't trade next week.

The reason why Chen Xin had to hold on for another two weeks was because after two weeks, he would be able to harvest two more low-level "evolution elixirs", and if nothing else, he should be able to evolve to the second order.

The mechanism of the evolutionary agent that Chen Xin understands is the "shock" gene, which is the evolutionary form that Chen Xin understands, through which the unstable gene structure is dissipated, and then some new gene loci are built with the vacancy created by the shock. Therefore, the energy required for each advancement will increase exponentially, after all, the original structure that was not stable enough is gone, and the rest is a relatively stable structure, and if you want to upgrade, you need more energy to oscillate.

Because human DNA is double-stranded, the oscillating demand is also an exponential multiple of 2, the first order of evolution requires 2 times of zero, that is, 1 standard "evolution potion", the second order is two standard "evolution potion", the third order requires 4, and the fourth order requires 8!

However, the "Evolution Elixir" is only the foundation, and awakening also requires energy. It's not that with the "Evolution Elixir", Chen Xin can reach the level of second-order awakening for no reason, the "Evolution Elixir" can adjust the genes for Chen Xin's shock and help him build a framework, just like building a house to build a framework; However, the energy required for the improvement of muscles, nerves, bones, etc., which are manifestations, cannot be generated from the void! Energy is conserved, and the bricks and tiles added when building a house are converted into awakening, which is equal to a lot of high-energy foods and sufficient trace elements.

Chen Xin's first awakening relied on the fat he brought from the earth to support it, but the energy required for the second-order awakening was obviously not enough to be satisfied by just some canned meat. On the one hand, the energy required by the second order has far exceeded the energy required by the first order, and on the other hand, Chen Xin does not have as much fat as before to support energy consumption.

In the laboratory, Chen Xin is also estimating, "In the next three to five days, there must be wandering zombies everywhere around this unfinished building, because the air here is filled with the smell of fresh flesh and blood." But two weeks later, what had happened in this building, under the ravages of the zombies, should be completely untraceable, and most of the zombies should be attracted by the smell of fresh flesh and blood elsewhere by then. ”

"If it's okay, after injecting two evolution potions, you can go out and find the energy that supports your awakening to the second order! Next time I go out, I won't come back unless all the culture potions in the petri dish are consumed! Everything must be done to minimize the chances of the institute being discovered! After today's battle, Chen Xin secretly made up his mind and made demands on himself.