Once the right solution was found, the engineering of cutting the metal, Long Yun carried out it very efficiently.

With the roar of the light diesel engine, the output torque is reduced by a gear transmission, and then fed to the cutter's alloy steel flywheel, sparks splash with a "squeak" sound, and the burnt smell of metal friction spreads in the air.

As soon as he started his hand, he felt that the hardness of the metal outer wall of the "black wall" was not high, and it was indeed relatively easy to cut, Long Yun cautiously cut for a while and stopped to observe, and soon found that the layer of wall panels on the outside of the "black wall" was not too thick, and the depth was only three or four centimeters, and there was a sense of sawing through the hollowness on his hands. The first through mark was sawed, and he stopped for a while to resume his work, and when the four marks were almost connected to each other, Long Yun put down the cutter and turned to using a handsaw and crowbar to do it.

After all, the large metal plate that was to be sawn off always looked like it weighed hundreds of kilograms, and he didn't want to be recklessly thrown down and smashed on his body by this thing.

After resting again and again, he pulled the crowbar with all his strength, and as the metal plate "clanged-" slammed to the ground, the mechanical structure behind the outer wall finally appeared in front of Long Yun's eyes; Raising his hand to fan the dust stirred up, he cautiously waited by the side for a while, making sure that there was no combustible substance such as lubricating oil escaping inside, and then stepped forward with an acetylene blowtorch, carefully studied the whole set of mechanical transmission parts exposed to the light, and then tried to modify the connection.

While observing the opening and closing mechanism of the airlock door, he sighed how stupid and coarse Lao Maozi's things were, but Long Yun had to admit that this set of flat pushing mechanism was very reliable, at least now it seems that it can still move flexibly.

It is not the same as the soft "black wall" wall material. It is supposed to be controlled by an electromagnet, but the alloy positioning pin is very strong. It took him a lot of time and scrapping several grinding wheels to cut them off. Then I went back to the MAZ truck and rummaged through it, fortunately the engineers of the "General Directorate of Rome" were all experienced veterans, and knew very well what common parts and mechanical assemblies were needed in the absence of backup, and everything needed could be found, and when the diesel engine, friction clutch, gearbox and gear linkage mechanism were all ready, and the driving torque should be enough, it was already more than nine o'clock in the evening.

In the desert base where there is no one in the desert, time does not mean much to Long Yun, and it is still early to look at the watch and feel that it is still early. He stood next to the complete set of transmission systems that had just been completed, and unconsciously took a deep breath.

The night was cold, and the temperature began to slowly decrease when he went deep into the side of the "black wall" inside the building, feeling the invasion of a chill, but the young man who took off his gloves felt a stickiness caused by sweat, and now his heart was beating faster and breathing a little deeper, and he knew very well why he was nervous and excited.

Start the machine qì, turn the gate screw, if a qiēshun lì......

With the rumbling opening of the airlock gates. It's time for him to face the "black wall".

After making a qiē preparation, he held the rocker for starting the diesel engine in his hand. His eyes swept over the transmission structure he had just completed, and subconsciously checked it again, but Long Yun could feel his hands trembling slightly; The induction of consciousness snooping, the mysterious fluctuation of thoughts after telling him the "black wall" is still there, and every qiē seems to be the same as before, but no one in this world knows what will appear in front of him once the airlock is opened.

Could it be a sudden increase in the sense of thought, so strong that it made him die in an instant?

Or is it a horrific hell of corpses lying on the ground, with the foul smell of death wafting through the air?

Or even that Long Yun almost fantasized that in this area where the situation was extremely strange and everything seemed to happen, would there be "undead" quietly hiding behind the "black wall", just waiting for the airlock to open, they would roar out and vent furiously, revealing to him the most terrifying hideous face in the world......

The chill slowly invaded, and unconsciously shivered, Long Yun, who was almost hallucinating, trembled, he rubbed his eyes and looked carefully, there was still the airlock gate in front of him that had been sealed for a long time, and there was nothing else abnormal.

In order to explore the secret, when it was really time to uncover the mystery of the "dead city", Long Yun was really a little hesitant, he reviewed the entire plan of action repeatedly in the same place, checked the oxygen mask, AK-74 assault rifle and other tools several times, and repeatedly confirmed that everything was ready, so he could barely suppress the tension and fear in his heart.

Yes, there is no doubt that this is a deep fear.

Seventeen years ago in the parallel world, on the night of the tragedy, all the researchers at the base of "Rome" were swallowed at once, and this terrifying power may now lie dormant behind the "black wall", waiting to be sent to the victim; Looking back on the adventure of entering the "Dead City", although it has not been harmed by mysterious forces so far, what will happen once the shield is lifted?

Unable to answer this question, Long Yun, who had been standing next to the equipment for a long time, barely collected his mood, slowly moved, he walked to the lampstand step by step, put on an oxygen mask, picked up the AK-74 assault rifle, and then landed on the starting lever with one hand and started the diesel engine with the help of compressed air.

What should come is always coming, and now that it has come to this point, the next thing is to try it for yourself.

Abandoning all distractions and focusing on dealing with the situation at hand, Long Yun hid his figure on the side of the "booming" diesel engine, and he was able to hide behind the pile of tools, holding the AK-74 firmly in front of him, first steadying his breath before releasing the lever that controlled the clutch.

As the friction of the torque was transmitted, a sharp and piercing metal scraping sound erupted in the empty building space, and the heavy airlock seemed to be motionless; Just when Long Yun thought that his work was wrong and wanted to get up to take a look, he only heard a slight whistling of the air, and then a dull "rolling" sound followed, and the originally tightly closed airlock door retreated slightly, and then slowly slid into the wall on the side of the gate with a "boom".

Since the tragedy, the "black wall" that has been sealed for more than ten years has finally been slowly opened by him.

Seeing the airlock door slowly opening, but did not find any abnormality, Long Yun, who was aiming at the gun, waited cautiously for a moment, stretched his ears to carefully distinguish the surrounding movements, but under the operating noise of the diesel engine, he couldn't hear anything, and his ears were full of "rumbling" machine qì sounds; After hesitating for a moment, Long Yun slowly crawled to the side of the diesel engine, flipped the switch, and waited for the diesel engine to completely stop and the noise spread to disappear, before he listened carefully to the surrounding sounds again.

There was silence; There was no sound around.

It was late at night, just outside the dark and dreary "Black Wall" airlock door, Long Yun could only hear the sound of the wind in the distance, but other than that, there was no abnormal movement. In this deserted and forgotten place, after the airlock gate opened, there were no other strange sounds, but because there was an empty doorway with a sound-absorbing effect in front of him, Long Yun, who was holding a gun in his hand, felt that it was even quieter now than when he first came in.

In the midst of this tense silence, Long Yun realized one thing after a moment, the sense of consciousness snooping was indeed stronger now than before the airlock was opened.

As far as his intuitive feeling goes, the magnitude of this enhancement is not very obvious, but he is still on the side of the wall for the time being, and he has not really stepped into it, maybe the world behind the "black wall" is not a little more inductive.

So......

The airlock has been opened, what will happen inside the door?

Subconsciously holding the handle of the AK-74 gun tightly, approaching the open airlock door, Long Yun himself didn't know what he was doing with the gun, or what to watch out for behind the "black wall", he looked through the glass of the oxygen mask into the doorway, and for a while he could only see the ground, and everything else was black and couldn't see clearly.

It seems that now that the floodgates have been opened, the next step is to go in and find out for yourself.

Thinking of entering the world behind the "black wall" alone, Rao is experienced Long Yun couldn't help but feel a little cold hair standing on end, he checked the gate again and again, and found nothing unusual, and cautiously found two high-strength telescopic struts to support the opening and closing of the gate, in case there was any force to reset the gate and lock himself inside, and then groped to check the equipment on his body, lifted another acetylene blowtorch on the ground, and slowly walked forward into the dark airlock doorway.

Step by step, he walked through the slightly concave airlock slot, raised the gas lamp and looked around, and Long Yun found himself suddenly entering the oppressive space of the extreme darkness.

The so-called "Extreme Darkness" does not mean that there is no light at all, but the background without any reflected light around it, and the ambient light is too dim, so that Long Yun's pupils can't fully adapt to it for a while. Thinking of this, the young man with a pounding heart clamped the butt of the AK-74 rifle at his waist and his fingers into the trigger guard, ready to fire at any moment, and he slowly adjusted the blowtorch mask so that the light directly entering the pupil was as weak as possible.

Eliminating the interference of direct light, Long Yun, who had excellent eyesight, gradually adapted to the dim light around him, and he finally slowly saw the situation behind the "black wall".

Inside the "black wall" in front of him, because the light intensity of the acetylene blowtorch is limited, it is not too far to see and it is not real, but Long Yun can vaguely tell at a glance that the world after the "black wall" is actually a large empty flat land about 100 meters square; In a large open space behind the wall, in the middle of the flat ground, there seemed to be only a building with a small silhouette standing quietly. (To be continued......)