Oh My God! Earthlings are Insane!

However, due to the big explosion in Leprosy Village and the entire Nest City being blocked, the construction site has been suspended.

Strong diggers are naturally the best source of soldiers for the major gangs.

They were originally affiliated to the construction companies of the major gangs, and now they have replaced pickaxes, impact drills and rock crushers with more lethal swords and guns to resist monsters and maintain order.

The entire construction site was empty, with only a few guards patrolling back and forth.

"The secret passage I found is deep in the construction site, but these guards have to be bypassed." Aji whispered.

Meng Chao released a ray of spiritual energy and quickly scanned the surrounding area.

He disappeared silently into the darkness.

When it reappeared, there was a fat mouse with big ears and shiny fur in its hand.

Meng Chao pinched the mouse's neck to prevent it from making any sound.

Then, aim behind several guards and throw them far away.

He enveloped the mouse with a ball of psionic energy, forming a psionic force field around the mouse like a cushioning air cushion.

The mouse landed lightly, and was not injured. It was just frightened, screamed and ran desperately.

The attention of several guards was immediately attracted by the rat.

Chasing the mouse's tail, chasing it into the corner to investigate.

Meng Chao and Aji took the opportunity to sneak into the depths of the construction site.

"It should be...here!"

Aggie fumbled on the wall for a moment and said with certainty.

Meng Chao touched the place he had just groped.

It was found that there were slight unevenness on the wall, which seemed to be a "ji" character.

It seems to be gently scraped out with a blade or a screwdriver. Under dim light, the naked eye cannot see clearly at all.

Only people with a very keen sense of touch can feel this mark by rubbing it carefully with their fingertips.

Aji said that this is the mark he made along the way when he escaped from the alloy arena last time.

Following the marks, after a short walk, two huge pipelines appeared ahead.

A pipe was more than two meters in diameter, and there was a "rumbling" sound inside, like a howling wind.

Most of the buildings in Nest City are located underground, so air circulation is naturally a major issue that affects the lives of countless people.

Therefore, the diameter of the ventilation ducts here is more than three to five times that of the above-ground buildings, and there are large industrial fans rotating at high speed inside to ensure that the fresh air on the ground can flow into the ground unimpeded.

Of course, because the nest city is shrouded in flames and thick smoke, the air inhaled underground at this moment is also full of highly polluted and highly corrosive small particles, inhaled into the nasal cavity, burning pain, if you inhale too much, you will feel dizzy, breathing Difficulty, as if the lobes of the lungs have turned into hard plastic.

Meng Chao and Aji were not going to sneak into the alloy arena through the ventilation duct.

Because the high-speed rotating industrial fans in the ventilation ducts are very difficult to deal with, and there are also defensive measures such as filter screens installed with alarm systems, and high-voltage power grids specially designed to deal with snakes, insects, rats and ants.

Ordinary snakes, insects, rats and ants stray into the ventilation ducts, and they will be instantly wiped out by electricity.

Both Meng Chao and Aji didn't want to taste it, the taste of being bruised and smoky after being electrocuted.

There is also a duct with a slightly narrower diameter next to the ventilation duct.

Cables, optical cables and crystal cables are laid inside.

It can also reach the depth of the ventilation duct, the mechanical and control unit of the industrial fan, and serve as a maintenance duct.

Although the diameter is less than one meter, it is not a big problem for Aji, who is originally thin, and Meng Chao, who has the pinnacle of control over his body.

Before the guards came back, the two sneaked into the maintenance pipeline.

They crawled through the maintenance pipeline in the dark for more than ten minutes, passing four forks along the way.

Aji said that when he escaped, he left marks at every intersection.

Sure enough, Meng Chao felt the crooked "Ji" on the inner wall of every pipe.

Sometimes there is an arrow pointing to which fork.

With the help of these marks, they sneaked precisely in the three-dimensional labyrinth-like maintenance pipeline, without losing their direction even once.

Eventually, the maintenance pipeline came to an end.

Meng Chao looked at Aji.

"above."

Aggie pointed to the top of his head.

Meng Chao began to grope carefully again.

This time I didn't touch the mark, but I touched a gap in the sealing cover and four huge nuts.

The nuts are tight enough that the cover is almost integrated into the pipe.

But Meng Chao couldn't help it. He took out a monster slime from the military backpack like a treasure chest, and used a small brush to carefully apply it on the gap between the nut and the cover.

After a while, there was a "chichi, chichi" sound at the joint between the cover plate and the pipe.

Then unscrew the nut, it is naturally much easier.

Lifting the cover, there is a reserved shaft above it, black and straight to the ground, probably hundreds of meters high.

A similar structure can be used not only as a strong and weak electric well, but also to transport guns and ammunition and various materials needed for survival, and also serve as a temporary escape channel when necessary.

It's a pity that the ancillary facilities of the alloy arena have not yet been completed, and there are no escalators on the walls of this shaft, and no climbing holes have been dug.

The walls are bare and there is nothing.

Meng Chao groped for the roughness of the well wall.

It was found that the well wall was simply smeared with a layer of cement, the particles were very rough, and it was covered with bumps of several millimeters in height.

With the help of a few millimeters of power point, he can easily drag things weighing several hundred kilograms to climb up.

"Do you need me to carry you?" Meng Chao asked Aji.

"Need not."

Aji shook his head and said stubbornly, "I can."

Meng Chao took a deep look at the leprosy boy, nodded and said, "Okay, I'll go up first, be careful yourself!"

He was like a huge gecko, silently climbing up the well wall.

Ten Fingers clearly did not apply any glue or slime, but it was firmly adsorbed on the rough cement surface.

Even the military rucksack filled with guns, ammunition and various supplies is firmly hung behind him.

Meng Chao climbed up tens of meters in one go.

Aji followed behind him, crawling at a significantly slower speed, and gradually distanced himself from Meng Chao.

Meng Chao seemed to be so absorbed in himself that he didn't pay attention to the movement behind him.

Suddenly, the leprosy boy seemed to be exhausted, his arms trembled, his palms were sweating, his hands slipped, and he fell down.

Meng Chao heard the exclamation and immediately flew to save him.

It's a pity that Aji exclaimed and danced wildly with his hands and feet, just avoiding the helping hand extended by Meng Chao.

He fell back to the bottom of the well heavily, and his left ankle made a "click".

"Aggie!"

Meng Chao then landed, frowning slightly, and looked at Aji's left ankle.

The left ankle of the leprosy boy was as big and hot as a steamed bun just out of the steamer.

He grinned in pain, tears of pain and unwillingness rolled in his eyes.

"I, I'm fine, Brother Chao, I can do it."

He struggled to stand up, but it got involved in the pain, and he let out a muffled grunt, tears and snot rolling down like a flood that burst a bank.

"I, I'm afraid I can't do it, Brother Chao."

Aji said with a sad face, "My foot is sprained, I'm afraid I can't keep up with your footsteps, let alone sneak into the alloy arena without being noticed by the guards..."

Meng Chao closed his eyes, groped carefully on his ankle for a while, and said, "Fortunately, no bones were injured, but the tendon was a little strained, and it will recover after a few days of rest.

"Then, you can stay here and wait for me, I will leave you the first aid kit and these foods, at least it will last you a day and a night.

"If you still don't hear from me after one day and one night, it's probably a bad luck, and you can ask for good luck!"

"Brother Super—"

Aji said guiltily, "It's all my fault. I fell down the shaft. I, I don't know what happened. If I had listened to you just now, I would have climbed up with you on my back!"

"It doesn't matter."

Meng Chao smiled slightly, patted Aji on the shoulder a few times, and said, "You are still so young, there is no need to go deep into the alloy arena to take risks. Anyway, we have come directly below the alloy arena, and the distance in a straight line is not far away." More than 50 meters, next, I will do everything!"

"Well, I believe Brother Chao, you can definitely do it!"

Aji pointed to the top of the dark shaft and said, "Climb out of this shaft, you just need to find a ditch along the place with the strongest smell, walk along the ditch for a while, climb out of the hole, and you can enter the alloy Inside the arena."

Meng Chao nodded, thought for a while, and then asked, "The smell is the strongest? What does it mean? What kind of ditches?"

"Well……"

Aji said, "It's the sewage pipes, sewers and so on. We drilled them in the leprosy village."

"Yeah?"

Meng Chao narrowed his eyes and said, "Then, above this sewage pipe, specifically, where is it in the alloy arena?"

"It should be a toilet." Aji said.

"..." Meng Chao looked at him expressionlessly.

"No, no, no, it's not a human toilet, it's a monster's."

Aji hurriedly explained, "Many vicious monsters are imprisoned and prepared in the alloy arena. These monsters are huge in size, eat a lot, and of course pull a lot, so their toilets and sewage pipes are all built very large. It is most convenient to sneak into the alloy arena from here."

"Fine!"

Meng Chao looked at Aji and said meaningfully, "I'll settle the score with you when I come back."

He climbed the shaft again.

Without the "little tail" of Aji, his speed is much faster.

Climbing to the top of the shaft, he really smelled a strong and pungent smell.

Meng Chao had smelled a hundred times stronger than this in the swamp full of bones in the depths of the wilderness.

Not to mention the pre-existing Ghost Brigade training camp, among the various training courses that break through the bottom line of human beings, there is one that teaches them how to shield their five senses and lurk like stones in various extremely harsh environments.

Alloy Arena has just been put into operation not long ago.

Many entertainment items are not open yet.

There are not too many monsters imprisoned here.

Moreover, monsters, especially super beasts with powerful spiritual energy in their bodies, their excrement is also an extremely precious resource.

Just like many poor places in the earth age dried cow dung for fuel, in Nest City and Leprosy Village, monster dung is also worth recycling.

The monster feces that were actually sent into the sewage pipes had been processed several times, and they were not as dirty as Meng Chao imagined.