Of course, the available evidence suggests that the phobic bacteria in the Marina Building were actually "commanded" by Lou Shen, which may contradict the speculation that Lou Shen existed in an underground karst cave, after all, there is a spatial separation between the two. But maybe there may be some kind of connection between the two, and Lou Shen can do remote command?

In short, there is indeed a certain possibility that the unknown form of the intelligent body Lou Shen exists there.

Since it is impossible for the bacteria themselves to have intelligence, and since they are so obsessed with breaking the formation because they are under the command of the Lou Shen, they have caused such serious damage to the wall structure of the Binhai Building, then......

If you can kill Lou Shen, without the commander, the behavior of bacteria will also return to the appearance of a single-celled life.

Ignorance, no thinking, no wisdom, no inclinations, all that remains is one thing, the instinct to survive.

They will only rely on instinct, ignorant and ignorant to fight for survival, and will no longer do such purposeful things as damaging the walls of the Marina Building.

The crisis is solved.

Zhang Dingshan looked at Lu Qingliang.

"I agree."

Zhang Dingshan nodded slowly: "Okay, then dig a hole." ”

Although the underground cave has not been explored in detail at this moment, after many oscillation detections, its size, location and other basic data are still roughly determined. The geological composition of this area is also well understood.

Digging a hole in the ground, purely from an engineering point of view, is really not a difficult task.

After several members of the second team reached an agreement, the relevant construction vehicles and operators, as well as a large number of construction materials, drove directly to the selected point in the underground garage.

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This point is located in the center of the Binhai Building, and theoretically speaking, the ability of the Zhenlong Pile here to suppress Lou Shen and Dinophobic bacteria should also be the strongest.

With Zhang Dingshan's order, the machine immediately began to roar.

But now, people aren't just digging holes.

Before that, there is some preparatory work to be done.

The first thing to do is to build a room that can be fully enclosed. This room will completely cover the exit of the tunnel leading to the underground cavern, completely cutting it off from the outside world. At the same time, the room will be under negative pressure, and the airflow will only be allowed to flow in from the outside and not from the inside.

Extractors will constantly remove air from the room, which will then be filtered and disinfected with the highest biohazard level before being discharged to the outside world.

Next to this room, there is also a special disinfection room. Anything leaving this room must be disinfected with the strictest and most thorough measures.

The existence of these rooms will cause a lot of trouble for subsequent construction. But compared to the potential dangers, people all agree that it is completely worth it to be cautious and insured, even if it is a little more troublesome.

Under these circumstances, it took two days to complete the preliminary preparations. After that, the excavation equipment entered the site and the tunnel construction officially began.

Large quantities of earthwork, rubble, etc., began to be excavated and transported to a factory specially set up for this purpose through the strictest quarantine measures. Here, these things are ground into powder and then completely sanitized at temperatures of hundreds of degrees Celsius before they come into contact with the outside world.

There may be microorganisms that can survive in temperatures of hundreds of degrees Celsius, but at least the phobic bacteria are unlikely to survive.

Workers in full-body isolation suits are nervously busy, the front is constantly excavating, the rear is constantly transferring earthwork, and there are also people leveling and reinforcing the passage.

Halfway through the tunnel, two isolation doors about three meters apart were installed.

Two partition doors make up a small room. In this room, a negative pressure extractor was installed again and various disinfection measures were added.

Those who enter the passage will first enter this small room, close the rear isolation door, and completely block the air flow in the passage before the front isolation door can be opened.

If you leave the passage, you also need to close the front isolation door first, and then the exhaust machine will replace all the air in the isolation room, and the disinfection measures will be completely sanitized, and then the rear isolation door can be opened.

It's another layer of insurance.

Again, no one thinks that this slightly cumbersome quarantine is superfluous.

After that, the workers continued to excavate and advanced another 100 meters or so before stopping.

After that, it was no longer excavated. Everyone was evacuated.

Two robot dogs were lowered to the beginning of the passage at this moment.

This robot dog has been specially designed to be extremely capable of off-roading. They are very agile and can move unaffected in a variety of terrains. Snow, deserts, mud swamps, waterlogged areas, etc., will not hinder them. With the cooperation of two robot dogs, it is even possible to climb steps with a height of no more than 1.2 meters.

At this moment, they are under the control of the people, walking from the beginning of the passage to the end of the passage. The cameras installed on their heads, as well as the sensors installed in various parts of their bodies, clearly transmitted the pictures they saw at this moment, the parameters of the environment they were in, etc., to the monitoring screen here in the temporary command center, and entered the sight of Zhang Dingshan, He Wei, and Lu Ming.

At this moment, the passage is not completely opened. Between the end of the passage and the underground cave, there is a rock barrier with a thickness of half a meter.

Two robot dogs arrived at the end of the tunnel and then taped a pack of explosives to the rock wall under the remote control of the people. After that, the robot dog quickly evacuated.

Temporary headquarters, Zhang Dingshan gently pressed the detonation button.

At this moment, everyone's hearts were lifted together.

Everyone knows in their hearts that with this detonation, this underground cave, which has been sealed for I don't know how many years and is very likely to hide extremely important secrets, will once again be connected to the outside world.

No one knows what's going on inside the cave.

Are there so many monsters that look strange and hideous, like alien life? Or is it a highly poisonous creature that hides a bloody throat that can easily kill tens of millions of people? Or is there a strange life in it that cannot be seen or touched, like a ghost?

All this, along with the first direct exploration of the underground karst cave launched by the side, will gradually appear in front of you.

With a violent explosion, the smoke filled the air, blocking people's vision.

The smoke of gunpowder slowly rolled and gradually calmed down. At this moment, the smoke of gunpowder has not yet dissipated, but there are some echoes that seem to be extremely distant and extremely vast tumbling back and entering people's ears.

There is indeed a very large underground space in it.

When the smoke and dust slowly cleared, the two robot dogs that had been avoided before moved forward again. They moved slowly, cautiously approaching the end of the passage.

At this time, here at the temporary headquarters, some streaks suddenly appeared on the surveillance screen, and the picture quality dropped slightly.

"There is unidentified electromagnetic interference."

"Increase the power of communications."

"Yes."

The picture is clear again.

At this moment, the two robot dogs finally came to the end of the passage. The smoke and dust finally cleared. At the end of the passage, several hidden, high-power searchlights appeared, aiming at the front at the same time, illuminating the darkness ahead.

The true face of this underground cave is finally revealed.

Lu Ming saw a slightly narrow crack. The crack was tilted about 40 degrees, only about a meter wide, and stretched out of sight all the way to the front. Both directions are beyond the edge of the channel.

Previous shock detection could only detect the general structure of this underground cavern as a whole. There is no doubt that nothing can be done about this subtle structure. At this moment, it is not surprising that there is a sloping crack here.

Lu Ming turned his head to look at the engineers on the R&D and manufacturing side of the robot dog. The Engineer nodded, signaling that the robot dog could move in this environment. So the two operators pushed the handle, and the two robot dogs carefully entered the crack one after the other.

They crouched on the crescency of the rock wall, their claws pinned out like nails, like spikes worn by humans, nailed to the rock wall, and stabilized their bodies.

After that, one robot dog moves deeper into the crack, and another moves under the crack.

As the two robot dogs moved forward, it soon became clear that the crack was irregular. It has many concave and convex inside, many twists and turns, sometimes flat, sometimes oblique. In addition, there are many forks inside, some of which are dead ends, with a hard rock wall in front of them, and some of which are zigzag and do not know where they lead.

This complex environment soon caused the two robot dogs to be unable to move forward.

It's not that the robot dog can't climb over, but the too tortuous environment has a very serious impact on the transmission of wireless signals. At this moment, the two robot dogs only advanced about fifty meters each, and the signal had been disconnected many times.

"Test on the spot."

"Yes."

At the very end of the communication signal, the two robot dogs each began to detect the current environment with their own equipment and took some specimens. After that, the two robot dogs began to evacuate.

The specimens were tightly sealed and sterilized before being sent to the researchers. The two robot dogs have been modified by people, and a communication cable has been installed on them, changing from wireless communication mode to wired communication mode.

A second exploration began. In addition to the change in communication patterns, the number of robot dogs began to increase after confirming the complexity of the internal environment of the underground cave. This time, a total of twenty robot dogs were ordered to set off and enter the cave.

Based on the data obtained from the first exploration, after entering the cave for some distance, the twenty robot dogs separated, each choosing a different fork in the road.

Every time it advances, the tangled communication cable will release a little, always maintaining wired communication between the robot dog and the outside world.

In this way, no matter how tortuous the internal environment is, no matter how strong the electromagnetic interference is, it will not be able to affect it.

It was at this time that the results of the analysis of the specimens obtained by the first probe came out.

"No phobic toxins were detected in the air. The presence of phobic bacteria was detected in the specimens. And, like the phobic specimens taken in the Marina Building, these phobic specimens are also in an inactivated state. One hour and twenty minutes after the test began, all the bacteria were dead and dissolved in the liquid. ”

"Radiation tests have shown that a certain level of radiation cannot affect the process of inactivation and death of the phobic bacteria. The duration of their deaths has not been prolonged or decreased. This shows that even the phobic bacteria obtained from the underground karst cave have the same radiation resistance as the phobic bacteria in the Marina Building at the moment. ”

This seems to mean that the original radiation disinfection plan not only allowed the phobic bacteria in the Marina Building to evolve, but also the phobic bacteria in the underground caves.

This is a noteworthy point.

Because from the point of view of biological evolution, the phobic bacteria in the underground caves are not threatened by radiation, and they should not have evolved the ability to resist radiation. But now that they have also evolved, this means that there is some kind of linkage between the two groups of phobic bacteria. Moreover, the phobic bacteria in underground caves do not evolve passively, but actively.

Zhang Dingshan said: "It can only be the god of the building." ”

Lu Ming nodded silently.

Twenty robot dogs are still scattered. As they progressed, and with the information they obtained, the topographic map of the underground cave was slowly being drawn. At this moment, the map is displayed on the screen.

In the darkness, the identified areas were marked with light. They start at the end of the underground passage and slowly extend in all directions, like some monster with many tentacles.

But as the exploration deepened, as more unknown areas were discovered, those lines began to turn back again, and the different lines began to be connected with each other. It became clear that the end of the underground passage was not the core of the underground cavern, it just happened to be connected to a certain crack.

A large number of specimens are being transported out in a steady stream. However, in most of the specimens, the presence of phobic bacteria was found by the inspectors. However, apart from the presence of phobia, nothing else of interest has been discovered.

There are no monstrous monsters, no ghostly alien life, nothing but phobia.

At this moment, these places on the periphery have basically been completely explored. The road leading to the deepest and most extensive underground cavern of the shock detection has also been discovered.

Zhang Dingshan finally gave a new order.

"Explore the core area."

"Yes."

The twenty robot dogs each returned, replaced the communication cables, and made their way to the underground cavern.

Because of the complex terrain, the robot dogs advanced for more than two hours before they walked this section of the straight line only a distance of more than 200 meters. So, under the night vision camera, a strange scene was presented in front of people.