In the infrared monitor, a researcher emerges into the camera's field of view. The defense system in the main control room reads the target image, compares the pupils and other relevant data in the database, and determines the non-base members of the creature in the camera's field of view. The defense system immediately gave the order to attack, so the microcomputer hanging outside the main control room immediately opened fire, and the base that had been silent for decades rang out with dense gunfire.

The 60 rounds per minute rate of fire in the firelight caused a rain of bullets to pour out on the researcher. The researcher only used his hands in front of his face to protect the vital organs in his skull, while the rest of his body was left to the rain of bullets. The monster that was crumbled by the bullets rushed forward with fire. When he came to the weapon platform hanging above, he jumped high, grabbed the machine gun with both hands and pulled it out, and immediately ripped the machine gun off.

By the time he jumped to the ground, he was already riddled with holes. However, the researcher did not pay any attention to it, and at this time, the other two nearby weapon platforms also began to fire, and the sound of gunfire and fire appeared in the base from time to time, and the still mobile micro-machine rushed to faithfully carry out the defense procedures. Although judging by the fact that there are few casualties in the body, such an attack is not enough in terms of strength.

In the control room, Zero glanced at the lenses of several monitors, and did not pay attention to the situation outside. Although the threat of the micro machine rush to the derivative body is limited, the armored outer wall of the control room is not something that these derivative bodies that have not yet evolved a siege weapon can break through. Zero is more focused on the work at hand than the derivation. He was busy operating in front of the command platform, moving his hands on the virtual light screen, decomposing and comparing several three-dimensional topographic maps called up from the main computer, and using the computer as an aid to find out the location of the biochemical zone and the shortest route of advancement.

Admiral Egger's video mentions that Dr. Kord, who was parasitized by Matter Z, has a fatal flaw, and now that he has to leave the base, a conflict with Kod is inevitable. The main computer has shown that all known external passages have been closed, and now all that remains is the working passage in the decontamination unit. But there, it must be where Kode's trap lies. There seems to be no other way to leave the base than to kill this parasitic humanoid monster that is parasitized by matter Z.

According to the information provided by Admiral Egger, the Z substance has an instinct for infinite division and evolution. It can be said that after being parasitized by it, Kod has become a terrible monster. Judging from the constant emergence of the Derivatives and the fact that they have evolved through the battle with Zero in a short period of time, the longer the battle with them drags on, the more disadvantageous it will be for Zero.

In such a situation, Zero needs to know the defects of substance Z in order to be able to kill with one hit.

Soon, the computer had already mapped out the shortest route to the biochemical experiment area. Judging from the distance of the route, if you go full speed at zero, it will only take 5 minutes to reach it. But he looked at Beonlise and had to recalculate the time of arrival.

Beonlis, as if sensing Zero's gaze, turned around, only to see that the beautiful master had somehow collected the weapons left by the guards in the control room, and had simply armed himself into a charging minion.

At a glance, in addition to four or five automatic rifles, Beonlise also had two micro machine punches, several ammunition boxes, and more than twenty fragmentation grenades. Among them was also a bazooka, as well as five shells.

Beonise smiled at Zero and said, "Just do what you're going to do, and I'll stay here." Let's not talk about whether those things can sneak in, even if they can, with these good things, I will let them know how good Miss Ben is!"

She wiped her nose with a stubborn face.

Zero knew Beonise didn't want to be a burden to herself, but it was a good idea for her to stay in the control room. It's the safest place in the base, almost like a fortress. It was impossible for those fifth- and sixth-order derivative bodies to rush in with their bare hands, and Beonlis's stay in the control room was definitely safer than staying by Zero's side. After all, the place where Zero is going could be Kode's lair.

"Okay, I'll be back as soon as possible. Trust me, I won't leave you. Zero said with a gentle kiss on Beonliz's forehead.

Beonise hugged Zero with all her strength and said, "You're mine, Zero." So, I don't want you to have anything to do, you have to come back to me alive!"

"Yes, sir. Zero laughed.

Beonliz let go of him, pushed and said, "Go ahead, don't worry about me." ”

Nodding at zero, the two walked out of the control room and came to the exit where Admiral Egger's body was. Zero commanded, "As soon as I rush out, I'll attract the attention of those monsters." You don't care about anything, as soon as I leave, you close the door. ”

"I see. ”

When all preparations are made, zero press the open button of the gate. Immediately, the inner armored gate was raised first, and the outer gate slowly opened. The time the door opened attracted the attention of nearby Derivations, and before they could react, Zero swept out at high speed with pieces of afterimage. He didn't use the shadow jump to attract the Body's attention, and only ran at full speed, materializing two submachine guns in his hands. Zero shoots as he runs, and the line of fire shuttling through the darkness immediately attracts the Yan.

They simply jumped off the outer wall of the central control room, screaming and chasing after Zero.

At the moment when Zero left, Beonlise rushed from behind cover to the door with an arrow step, slamming it on the closing button. In this way, she watched as the door opened and closed, quickly cutting Zero's figure out of sight.

When Beonise was the only one left in the central control room, she turned to look at Admiral Egger's corpse and shook her head and smiled. Beonlise dragged the Admiral's body aside, and dragged tables and chairs from the control room to form a simple cover. There is a passage of more than 100 meters between the gate and the control room, which will be the focus of Beonrith's defense.

On this short 100-meter passage, she has set up three checkpoint covers, and if there is no zero coming in through the gate, Beonise will use these levels to pour heavy fire on other things. In addition to this, she found some thin steel wires and combined them with fragmentation grenades, which were simple traps to restrict the passage of infantry.

As she herself says, Beonise uses everything she's learned to create an environment where she can keep herself safe. She was not one of those women who had to rely on men to survive, she was destined to be a warrior from the time her mother took over the position of head of the household. Whether it's in business or on the real battlefield!

The sound of gunfire echoed through the passages of the base, and when it was gone, Zuihou fell to his knees weakly as he chased Zero. His forehead was riddled with bullet holes, and the rapid blows of his submachine gun nearly smashed one of his faces. What's more, the bullet destroyed the vital organ in his skull, forcing this dangerous killing tool to cease to function.

Zero's expression was not happy at all.

The basic abilities of this batch of Derivatives have been improved again, so that every time Zero kills a Derivative, he has to spend more effort and energy. These things may not seem obvious, but when they accumulate in a certain amount, they become a terrible disadvantage. Kede doesn't need to take action personally, as long as he keeps sending out the Radiant Body, the use of crowd tactics alone is enough to drag Zero.

This makes Zero more determined to find the defects of substance Z, otherwise, this battle will not be fought.

5 minutes passed in a blink of an eye, and the biochemical experiment area was already close in front of me.

It's surprisingly quiet.

Zero didn't feel any trace of the activity, he thought about it, materialized a few remote-controlled bombs, and installed them in the hidden part of the passage in case of emergency. After doing this, Zero entered the biochemical experiment area alone. Through a gate that has ceased work, walk through a silent disinfection passage. However, Zero, who was mentally prepared for everything, couldn't help but be stunned when he actually walked into the experimental area.

He had imagined any situation, but he had never imagined that the experimental area was still operating!

Zero almost doubted his eyes, and in front of him, the neatly arranged culture tanks were emitting a turquoise fluorescence. That's due to the light in the culture tank shining through the nutrient substrate, and in the faint green light, there is a naked human body floating in it.

These people are men and women, and even a few old people and children are inside. Without exception, these people all have a special biological organ attached to their chests. It looks like a long, lanky spider, with eight tentacles poking out of its prismatic organs and digging deep into the human body. The reason why it looks like an organ is because it is so stretched that it resembles a peripheral heart.

Zero looked closely at the incubator and found that the data on the screen below the incubator showed that the person inside had a normal life response. But strangely, they seem to have fallen into a deep sleep, and they should have been awakened by something that suppressed their will. Zero looked at the biological organs on these people's chests again, thinking that it must have something to do with this strange thing.

At this moment, a deep and hoarse voice rang out: "What do you think of my 'food'? Powerful invaders, there is no doubt that they are all living people. ”

Zero looked at the source of the sound, but all he could see was the countless cultivation tanks arranged in a square row. He quickly swept towards the phalanx of the cultivation tank, and a faint figure swept away in the distance. Then, the voice came from elsewhere: "In addition to most of these exhibits are researchers from the previous base, there are also a small number of wilderness wanderers from villages and towns near the surface. How, isn't it exciting to hear the news. That's right, there is a passage to the outside world in this base, do you want to know where it is?"

"Is there a working passage in the water purification unit area, Dr. Code!" Zero said coldly.

The voice sounded from the direction behind Zero again: "It seems that that Egger guy left quite a bit of information, so let me guess again, are you here to find research materials for that old thing Karahan? Well, I'll admit that there's something flawed in Matter Z. But do you think I'll let the flawed material persist to this day?"

Dr. Kord's voice came from all directions, making it completely impossible for Zero to capture his position. As Iger said, Kod was not only cruel, but also cunning.

"That really surprised me, it seems that the parasitism of the Z substance didn't completely turn you into a mad dog. Zero said sarcastically.

In an instant, there was a faint hint of murderous intent from the left-hand direction. Zero turned around, but as soon as he raised his gun, the killing machine was gone.

"I have to say, you're such a dangerous guy. You don't have to try to provoke me, I can sell like this, and definitely do it better than you. Rather than try to provoke me, worry about your situation, intruder. You are powerful, powerful to the point that my heart is beating, and it has been a long time since food of your quality has appeared in my kingdom. So don't worry, I'm not going to kill you right away. He laughed, "I'll keep you awake, but tear off your skin and your flesh little by little." I will taste you slowly, completely absorbing your powerful genes to correct some defects in substance Z. I believe that when I have completely absorbed you, I will evolve into a perfect creature!"

"Shouldn't I be honored to be able to see you?" said Zero, sneering.

Kod Haha laughed, "Of course, it's your glory to be part of my genes, invader. ”

"It seems that you have been at the base for too long, and you have become a verbose old man for so long. ”

"Perhaps, after all, you and the woman were my first visitors in the last twenty years. As a sign of my respect, I will prepare for you a feast of death of the highest order. Kod said in a whisper.

Zero was silent, and he lowered his head. The bangs blocked his eyes, and the fluorescence of the culture tank shone on Zero's face, but it clearly allowed Kode, who was hiding in a corner, to see the smile that gradually drew out of Zero's face.

There was a lot of meaning in this smile, at least Cod read it with contempt and confidence.

Contempt for Kode, and self-confidence.

"What are you laughing at?" asked Curd angrily, keeping moving.

Zero said lightly: "It's nothing, it's just that I haven't seen someone as stupid as you." Dr. Kod, Z matter has given you very scary genes, but it doesn't seem to improve your intelligence. Otherwise, why would you tell me about the defects of substance Z yourself, even if it is just one of them? ”

"What?" said Kede, stunned, "When did I tell you?"

"Haven't you noticed yet?" Zero looked at the humanists in the incubator, "You said that some of these people were from the surface, and pointed out that Beth and I were the first visitors to the base in the last twenty years. In other words, you stay in the base for a long time. Although you can go to the surface, you can only bring back homeless people from nearby villages and towns, which means that you have a limited radius of movement. ”

"I'm curious, what is it about a powerful creature like you that makes you nostalgic for this grave-like underground base?" Zero smiled faintly, "The answer is naturally not nostalgia or anything like that, but that you can't leave." So what's it that keeps you from leaving? Or what's on the surface that Matter Z is afraid of? Radiation?"

"No, surface radiation is after the cataclysm. Born of the Z-Matter of the old era, Dr. Callahan probably did not envision the environment of the new age. So, it should be something much older, and something that existed in the old days. So guess I'm going to be sunlight, or the ultraviolet rays of the sun?"

Suddenly, Zero felt Dr. Curd, who was constantly moving, suddenly freeze for a moment. Suddenly, he knew that he had found one of the weaknesses of Substance Z!