This battle had a huge impact on Cen Mu, and the long-term high-intensity use of the perception field consumed a lot of mental power, however, the harvest was also quite rich, and the limit range of the perception field was increased by at least 10%, and the specific limit value could only be known when tested on the ground.

And instinct calculates the benefits of evolution points, this battle has harvested at least 21 evolution points so far, and, continuously urging the first-order central unit to calculate, the cooperation of the first-order central unit's computing ability and perception field detection ability has been greatly exercised, and the advantage is that this combination will gradually become an instinctive habit, which makes his on-the-spot adaptability, quantitative combat ability and overall view stronger and more accurate.

In addition, the one-word chopping has become a skill that is not controlled by fate, but has become one of the skills mastered by Cen Mu, not to mention reaching the same level as Uncle Shi, at least it can be retracted and released freely.

……

Another two hours passed, and finally, the density of the insect swarm began to decrease, and the most intuitive feeling was that the insect corpses were accumulating more and more, indicating that the insects no longer had the extra energy to clean up the insect corpses.

Eventually, the bugs the team had killed piled up from the hole to the inside of the unknown laboratory, and everyone was buried in a sea of insect bones, except for the place where they were like the eye of the storm, and a group of people collapsed on the ground, breathing heavily, completely ignoring the bug bodily fluids and the foul smell all over the ground.

This positional battle is a big victory! The price paid was only that Wu Shaojie, Xue Ding, and Qi Wei were slightly injured, all the personnel were out of strength, and more than half of the grenades were consumed.

"Fix it in place for half an hour, and after half an hour, we'll head inside!"

At this moment, the supplies that Cen Mu carried with him became the key to the continuation of the mission, the previous high-energy nutrients ensured the sustainability of high-intensity continuous battles, and at this time, nutritional canned food and compressed biscuits were wartime supplies with good results, in Xiao Yi's words, these supplies were worth ten thousand gold! It would be a great sin to miss the perfect opportunity to kill the Hive Lord because you didn't have enough food on this mission!

Cen Mu took over this by the way, and said with a smile, Then even if you sell you 10,000 federal shields, you owe me again.

Of course, this was a joke, and half an hour passed quickly, and the team cleared a passage through the cracks between the insect corpses and groped their way to the center of the laboratory......

At that time, when the laboratory was in normal operation, the entire laboratory was located at a depth of 200 meters underground, divided into three floors, each of which was about 30 meters high, with its own complex structure.

The first floor is the rest area for laboratory staff, which is divided into three areas: researchers are located in Area A, managers are located in Area B, and other staff such as logistics and security are located in Area C. Zone C has the largest number of people and the largest area, with three zones forming a complete circle, and the only passage to the second floor is in the center of the circle, which requires at least six security checks and the same elevator system to reach the second floor.

The second layer is the area for testing the ability of insects, the overall is a ring grandstand structure, all kinds of monitoring rooms and lookout windows are deployed at a high place around the periphery, the central area is a cylindrical closed space, which is composed of special FRP and a solid structure with three layers inside and outside: the outermost layer is a cylindrical cover, there is a ring channel along the inner wall of the cover, the channel is inward, and it is a protective layer of FRP structure, which encircles an independent test room inside, and each test room is an independent closed space, which is constructed of new carbon nitride materials. Hardness comparable to diamond, valuable and valuable, these laboratories can be used to test the ability attributes of new insects, and can also be used as a platform for insects to fight and fight, through the glass structure can be observed the movement inside, at the same time, the all-round three-dimensional monitoring system will transmit the image inside to the external monitoring room, which is the structure of the entire second layer.

The path to the bottom of the second layer is more complicated, and the security check is more stringent, and it is said that the highest security system in the current federation, the "Divine Crystal", is installed, and only through the inspection of more than a dozen processes can the bottom layer be reached.

The area of the third layer is relatively small, the central area is the core laboratory (the original experimental body cultivation site) and the energy core (military-grade nuclear energy reactor), the scale of the nuclear energy reactor is very small, but the value is not small, it is not at all the grade of the reactor that Cen Mu encountered in the living corpse cave, in terms of nuclear energy technology, the technology used by civilian companies is the technology of military science and technology thirty to fifty years ago.

The core laboratory is the gene mapping laboratory with the highest technical specifications in the entire laboratory, and it is known as the "Carboniferous" place, where new insect species are created and invented.

The accident of that year was triggered from here, and the most potential experimental prototype inexplicably evolved by leaps and bounds, which made the chief expert of the Black Sand Laboratory extremely excited, and he invested exponentially his energy on this sample, in order to break the "research output shortage" of the Black Sand Laboratory, he did not strictly abide by the experimental principles, and devoted himself to research during non-working hours, which eventually led to him being controlled by the test subject.

Next, all the bugs are released, the security system is shut down, and the swarm passes through the blockade of the second level and raids the first level, slaughtering everyone underground and destroying the elevator shaft leading to the surface.

As a result, the entire laboratory completely sank into darkness, and the Xiao family's decision-making that year made a major mistake, and at the first time, they did not choose to report to the Federation, did not use the military to work together to deal with the problem, but chose to conceal the accident and carry out self-help at the family level, and the high-level Xiao family fell into contradictions and disputes......

The Xiao family organized a total of three waves of clean-up battles within three days, the largest wave of clean-up, Xiao Che was the commander, it was a pity that there was no current complex insect road at that time, the only elevator shaft was blocked by the insect swarm, and as many people died as many people as they went, and the clean-up battle failed, and after the failure, it was a bigger lie.

It wasn't until half a month after the accident that the remote supervision department of the laboratory found an abnormality and was exposed.

The high-level of the federation was furious, the Xiao family was severely punished, Xiao Che took responsibility in this wave of liquidation actions, and paid for his young life, the Xiao family has been in a state of collapse.

Half a year later, the insect appeared on the ground of the Black Sand Laboratory, and in three days, the ground building of the Black Sand Laboratory fell into the control of the Worm, and the prototype of the Black Sand Cemetery was formed, and the grievances between the Insect and the Xiao family began......

This is the history of the Black Sands Cemetery.

Entering the laboratory, instead of entering the world of rules and regulations as everyone thinks, the circuit map did not come to use, the insect swarm transformed the area in its own way, and the winding tunnels were all over the first floor, and only in a half-rusted steel and iron frame in the corner of the insect tunnel, traces of early humans could be seen.

The structure of the first floor has long been completely recognized, the empty room is filled with worms with earth, there are almost no doors, only a tunnel through the wall, Xiao Yi can only use the underground depth table to estimate the current location.

Walking a big circle on the first floor, except for knowing that he hadn't left the first floor, Xiao Yi didn't know anything about his location and couldn't locate it at all.

Xiao Yi frowned and said, "This is completely different from what I imagined, there is no familiar sign, even a few words, so that I can distinguish the current direction!" ”

Cen Mu shook his head and said: "Your thinking is wrong, you can't use human thinking to measure in the territory of insects, I suggest you abandon this picture!" It's still the old rules, all the way down, I think, this is the mindset of bugs. ”

Tang Wenzhe bowed his head and said: "Xiao Mu's idea is right, I also mean this." ”

Xiao Yi was woken up, immediately adjusted the search plan, all the way down, and gradually found some signs, at least from the depth table, the team had left the first layer, walked a long downward ramp, Cen Mu suddenly stopped.

"What's wrong?"

Cen Mu said, "I finally know why you can't find your way to the second layer? ”

Xiao Yi asked, "Why?" ”

Cen Mu gestured to the cave wall on the right and said, "The second layer is just behind this soil layer, I think the worms have no way to deal with those glass layers, so when building the worm path system, the entire second layer has been bypassed!" And the road under our feet will probably lead to the bottom of the laboratory! ”

Coming to this conclusion, everyone looked at each other, and the next step was to face the biggest boss of the entire hive, although this was their ultimate goal, but when it was so close, everyone's hearts were empty, and they were completely bottomless.

Xiao Yi groaned, "Finally...... It's time for the final showdown! Are you ready?! With that, he took a few deep breaths and looked at everyone with burning eyes.

Wu Shaojie said disdainfully: "I'm afraid of a bird!" Let's go! ”

"Then let's go in!"

Lin Miao and Qi Wei walked to the front of the team, Cen Mu and Xiao Yi were guarded in the center, and after Ning Chen and Tang Wenzhe broke off, the group launched a defensive formation and slowly advanced inside.

Gradually, the terrain tends to be flat, turn a corner, a straight and dark underground corridor appears in front of everyone, the next short slope enters the corridor, the searchlight hits in, this is claimed to be able to hit the farthest 200 meters away The concentrated beam seems to shoot into the endless void, without any feedback, as if this corridor never ends.

The light is swallowed!

Everyone turned their attention to Cen Mu.

Cen Mu said: "My perception field has also been suppressed, the effective monitoring range has been reduced to 50 meters, everyone put on masks, the air here is a mixture of spores and poisonous mist. ”

Tang Wenzhe thought for a while and said: "Then we have to fight quickly, I have 8% of oxygen left, I can breathe for 20 minutes in a calm state, and I can only use it for about 5 minutes in a fierce battle state, what about you?" ”

Tang Wenzhe has always been the most thoughtful one.

In a round of reporting, the one with the worst reserves could only last about three minutes of fighting, which made Xiao Yi unexpected, this difficulty began to weaken everyone's fighting spirit, coupled with the mysterious atmosphere of the road ahead, people inevitably retreated.

Xiao Yi frowned and said: "Go first to explore, and if you don't have enough reserves, you can run back, since you have come to this point, you can't retreat, success or failure is here!" ”

For the time being, there is no objection to this opinion.