The staircase is designed to be very narrow, and when you walk up, it looks extremely narrow, with Uncle Shi's height, he has to bend slightly to come down, it can be seen that the designer does not pay attention to the staircase, maybe it will not come in handy back then! A fully automated water purification system, in addition to the first floor of the staff operation area will keep people, the other two floors are not very people, people will also take the elevator, not the stairs, this staircase is probably for emergency preparation, as an escape channel.

Nowadays, this passage is frequently used by living corpses, the stairway and the walls on both sides are covered with air-dried bodily fluids and some rotting pieces of meat, and the cement steps have long lost their original shape, covered with a layer of biological slime blanket, some of the slime is still fresh ** with body temperature, which makes people feel less like going down the stairs, but like walking down the esophagus leading to the monster's stomach.

As soon as they turned the first corner, the two of them could distinguish the unique stench of the group of living corpses and their unconscious moans, there were really a lot of them, and the two of them were nervous, not scared, but disgusting, this group of living corpses did limited harm to the two, but their body odor and toxins made the two of them very afraid.

Stepping on the last step, there was no buffer space, the group of living corpses and the two of them, both sides entered each other's "field of vision" at the same time, and the living corpses that were twice as dense as a layer pounced up, and the fresh flesh and blood were the most exciting and attractive food, not to mention the food that was delivered to the mouth!

The hordes of living corpses scrambled forward......

Rao is Cen Mu and Uncle Shi cooperate tacitly, and they are also rushed by this group of living corpses, if they don't practice some cooperation on the first floor, the two of them are afraid that they will run away, fortunately, the stairwell is not spacious, and the two of them hold the staircase, but they can also cope with it, but looking in from this side, the black shadow is longing, and they don't know how many living corpses there are.

In a moment's effort, more than a dozen fragmentary corpses had piled up in front of the two of them, messy corpses gradually piled up, the originally not spacious exit was half blocked, and the air was filled with an unusually strong fishy smell......

Cen Mu instinctively hated this feeling, just like the feeling of despair at the beginning, you must know that after the five senses are strengthened and awakened, Cen Mu will rarely enter a state of anxiety, however, the endless charge of the living corpse makes him continue to accumulate negative emotions, and an impulse is breeding in his heart: he wants to rush forward! Tear this filthy creature to shreds! Get out the initiators, those perverted, disgusting mutated tissues! Grill in the fire! Roasted flesh and blood! Roast them painfully! Eventually burned into a pile of carbon slag!! to let yourself vent your anger!

The more Cen Mu thought about it, the more he was in a trance, his instinct sensed the abnormality, and the timely warning made him sober up.

Cen Mu hurriedly said, "Isn't that right?!" This slime is poisonous! ”

Uncle Shi's body stagnated, his mood changed more obviously, Cen Mu's warning made him come back to his senses, and he suddenly realized that the tyrannical emotions boiling in his heart just now were probably abnormal, Uncle Shi frowned and said, "Go!" Go up! Fight and retreat! ”

Cen Mu understood what he meant, no matter whether the body fluids of the living corpses were poisonous or not, they couldn't kill them here, otherwise, this stairwell might be filled with living corpses, and the two of them didn't want to enter the next layer, thinking of this, Cen Mu quickly withdrew from the battle group, Uncle Shi roared, and pushed the entire group of living corpses away for a few points, and the two quickly climbed to the first floor.

Maybe it was the battle that stimulated the wildness of the living corpses, however, they were not interested in the fragments of the living corpses that had been decomposed before, maybe the corpse pieces that had been processed by the living corpses had lost their value to them, and soon, the living corpses in the stairwell rushed to the first floor, and several "flexible" living corpses were the first to rush out of the circle and rushed towards Cen Mu, with their IQ, they could still distinguish the threat of Cen Mu and Uncle Shi, in their opinion, maybe Cen Mu's damage was greater, but he was better to deal with......

At this time, Uncle Shi, who was moving a little slowly, had been surrounded by corpses, and he couldn't take care of Cen Mu for a while, so he could only speed up the killing, a pair of fist gloves rattled, and the living corpses that were hit flew back upside down, either injured or disabled, and there was no shortage of mutants in the group of living corpses besieging him, not only the mutation of physical strength, but even individual intellectual mutations, knowing how to use the cover of his companions to sneak attack him, for a while, Uncle Shi was too busy to take care of himself.

Cen Mu knew his strengths and weaknesses, so he had to focus on Uncle Shi and the corpses, and fight and retreat......

Killing and retreating along the way, meat pieces, stumps, body fluids, and mutated tissues were scattered all the way, paving an incomparably bloody killing road, I don't know how many punches were swung, I don't know how many slashes were slashed, and I don't know how many living corpses were decomposed, and the living corpses gushing out from the second floor were like rats that had blown up their nests, endless, without pain, and without fear of life and death, even if it was just in exchange for leaving a disgusting smell on them......

Fighting to the back, the two of them almost lost patience in the face of this kind of successive and suicidal attacks, exchanging "lives" for injuries, and were ready to turn around and flee for their lives several times, and planned to give up the stronghold of the Living Corpse Cave, and finally under Cen Mu's insistence, he resisted, and his perception field had gradually felt the slow decrease in the density of the follow-up culling team, although the difference in this decrease was imperceptible.

After a long round of fighting, the physical strength of the two was almost exhausted, and they didn't know how many wounds were scratched out of their bodies, dripping with blood, mixed with mutated body fluids, which looked particularly hideous and tragic, although these wounds were not fatal, but in the waterway area, having a wound itself was a very dangerous thing!

At the same time, the pay is often proportional to the gain, after this battle, the two of them have gained a lot, especially Cen Mu, the understanding of the use of power has deepened to a deeper level, at the beginning of the battle, his killing move relies on the sharpness of the weapon, using brute force to slash, although the killing effect is good, but it is extremely wasteful of physical energy, and, due to the wide opening and closing of the action, after each slash, there will inevitably be a small interval between attacks to be used by the living corpse, and Uncle Shi is indispensable to take care of him.

After the battle, he has gradually touched the threshold of power skills, and is familiar with the feeling of blade chopping on different materials, which makes it easy for him to find the best position for the knife, often picking and dialing at will, and taking advantage of a quick insertion or small slash to achieve a more ideal killing effect, coupled with the data support of the perception field, and the ability to quantify the battle situation, in the later stage of the battle, he has become the main attacker of the battle, and the killing efficiency is more than three times that of Uncle Shi.

And for Uncle Shi, this battle is the most intense and dangerous battle in the past year, it is estimated that he has obtained at least five evolution points, as long as he experiences another battle of this scale, it is enough for him to form a new first-order ability, perhaps, he should get an infrared vision, Uncle Shi thought, he suffered from lack of perception, if he put Cen Mu's perception ability on him, he would not be injured so much.

The two sat on the ground and rested for a long time, and Cen Mu asked, "Uncle Shi, why do I feel that the upper limit of my strength is constantly fluctuating?" You know I have the ability to quantify combat, and I've found that the strength of the attack is different several times, and I'm sure that these attacks have used up all my strength, why is there such a difference? ”

Uncle Shi glanced at him and said: "After most people learn the power skills, there will be a performance of power floating, you have not fully mastered the skills of power generation, you have to turn all your strength into an instinct, every time you exert force according to the habit of instinct, you can play the strongest force, this is the real entry door!" If you find that this situation still exists at this time, then congratulations! The power of the bull is about to be promoted! ”

"Advancement?!" Cen Mu grasped the word.

"Yes, combat is the fastest way to improve ability, especially in the fight of life and death, we will have some gains, in short, some evolution points, in the heyday of Nathan, our laboratory has the equipment to measure the remaining evolution points, so that it is easy to accurately grasp the opportunity to improve each ability! That's when my gravity amplification was triggered......"

After that, Uncle Shi was a little gloomy, and he was immersed in the glorious years of Nathan's scenery.

Cen Mu didn't ask any more questions, the two of them rested quietly, this is a tacit understanding, but also a decision, with the two of them now stinking and full of injuries to go back, I'm afraid they won't be able to get out within two or three days, so they simply went all the way to the end to uncover the secrets of this dirty purification factory.

After a long time, the two cleaned up the mucus splashed on their bodies, treated the wounds briefly, and continued to drill out of the factory......

When retreating all the way, there were only living corpses in sight, and I didn't think the scene was ugly, and when I entered again, I found that the entire underground floor had become a bloody purgatory, the ground, the machines, the walls, and the ceiling were sprinkled with rotten meat, broken bones and piles of mushy meat foam, and the air was filled with all kinds of fishy smells, so smoked that people could hardly breathe, was this really the killing they created?! The two looked at each other.

Going down to the second floor, the environment is much better, except for a bunch of equipment and some traces of living corpses that have been silent for more than 20 years, there is no half of the living creatures to be found, thinking about it, this battle is afraid to lure out all the living corpses on the second floor, continue to go deeper, drill into the stairwell leading to the third floor, and finally, the two of them stepped into the territory of the third floor, the core of the entire underground factory......

This is a relatively small space, compared with the messiness of the first and second floors, the third floor is relatively clean, but there is no light in the entire underground three floors, and the whole space is immersed in a thick darkness like ink......