Oh My God! Earthlings are Insane!

"Behind these gaps, what is there?"

Meng Chao thought about it. The reason why these sewage pipes were abandoned was that after hundreds of thousands of years of use, the long-term leakage of sewage and groundwater caused the structure to be weak, and some of them collapsed, blocking all the pipes.

But apart from the collapsed section of the pipeline, the deeper pipeline should still be intact.

The secondary collapse created by itself is very likely to unblock the blocked pipes.

At least clear a few palm-wide gaps.

"In this way, the secret hidden deep in the ground, at the end of the pipeline, may be exposed.

"That's why the messenger of the Great Horned Rat God made people paste the gap."

Thinking of this, Meng Chao raised the iron rod, and gently inserted it along the crack that had just been papered between the ruined walls.

These gaps are just randomly pasted with mud, and even after hardening, it can't be said to be very strong.

Moreover, Meng Chao injected a psychic energy into the iron drill, which caused the arm muscles to vibrate at high frequency.

Driving the iron drill is also like an extremely long percussion drill, and it is easy to insert to a depth of two or three meters.

Not only the iron rod, but also half of Meng Chao's arm got stuck in the gap.

Then pull out the iron rod, and a hole appeared between the gaps.

Meng Chao put his ears on the hole, and input spiritual energy into the eardrum and cochlea, holding his breath to collect every bit of movement in the ground.

Sure enough, he heard voices.

In addition to the sound of a large number of garbage insects working hard in the depths of the sewage pipes, there are also extremely subtle and regular vibrations.

Ding ding ding, ding ding ding, ding ding ding.

"Is this...someone doing earthworks and digging pipes underground?"

When Meng Chao was in Longcheng, he became acquainted with Lu Siya, and learned a lot of underground work skills from this senior prospector.

He recognized at once that it was the sound of constant drilling and digging.

"It's really strange, it seems that you don't need to dig so hard to clean the sewage pipes, right?"

Meng Chao narrowed his eyes and observed the collapsed ruins in front of him.

He calculated the distribution of the ruins and the angles of mutual support.

Then, in the depths of the ruins, a hole not much bigger than a fist was slowly pulled out.

His movements were gentle and careful, each rock moved as carefully as a crystal-carved flower bud.

Every time two or three rocks are moved, it is necessary to stop and recalculate, and fill in new rocks around the hole to support the fragile structure above.

Even with the fighting power at the peak of the Earth Realm and the computing power at the peak of the Heaven Realm, it still took more than half an hour to break through a two to three meter long hole in the depths of the ruins.

Meng Chao looked at the fruits of his labor with satisfaction, took a deep breath, and the bones all over his body shrank with a faint "crackling" sound.

The whole person became smaller in an instant, and slipped into the hole that was not much bigger than a fist.

His arms were stretched to his chest, stretched straight from his pelvis to his toes, the main muscle groups in his body were unable to exert strength, and he could only rely on the slightest muscle fibers to drive the infusion of psychic energy, which combined rigidity and softness The fine hairs vibrate at ultra-high frequencies, sending themselves in with wave-like power.

It took a full five minutes to get through the short two to three meter hole.

Meng Chao regained his figure and gasped for breath.

What was inhaled into the chest cavity was a stench that had condensed into a solid.

It's because Meng Chao has spiritual powers to protect his body.

Still can't help but want to cough and vomit.

This ghostly place is a hundred times dirtier than Dragon City's underground sewage system and the lair of giant sandworms.

Even he can't stand it. I really don't know how those rat people children who have never practiced spiritual power and don't even have half a mask for protection, survived here for a year and a half as garbage bugs, before dying silently of.

"Well, regardless of whether the Dragon City civilization in the previous life was good or bad, at least there is no pity for the Turanian civilization to perish. In other words, it is simply unacceptable for such a 'civilization' to survive."

Meng Chao thought to himself, "It's a pity that the holy light camp that destroyed the Turan civilization is not a good thing. Moreover, it was obviously the crime of the superior clan masters, but thousands of innocent rat people were buried with them. , and dragged even more innocent ordinary citizens of Longcheng into the abyss!

"In this world, no one can be an isolated island. If you want to save every innocent ordinary citizen of Dragon City, it seems that you must first save every innocent rat people!"

He blinked his eyes, constantly zooming his pupils in the dark, adjusting the best visual mode.

At the same time, a lump of mud was sent to the exit of the cave with an iron rod, and it was barely blocked. After a while, it should not be discovered by the careless rat people.

Then, like a giant lizard born in a swamp, he used both hands and feet to sneak silently on the rusty wall of the sewage pipe.

Around a corner that's mostly collapsed.

A faint light appeared ahead.

Because the ground is full of flammable and explosive methane and poisonous gas, and the high-level orcs lack the technology to manufacture electric lighting equipment, the garbage worms carry crumpled paper lanterns with them, filled with glowing insects like fireflies , Hit the lantern "crackling" noise.

With the help of the faint light emitted by the insects, Meng Chao saw dozens of scrawny children who looked like ghosts, simply covering their mouths and noses with cloth strips soaked in water, and waving mandala branches and wild beasts. Simple tools made of bones, working hard to dig and dredge.

Most of them are under ten years old.

Even a child who looks a little more mature, by Dragon City's standards, is severely malnourished, with a big head and a small body, just like a skeleton version of a big-headed doll.

Their limbs are so slender, out of proportion to the crude tools, every time they swing a hammer and shovel, there is a feeling of being carried away by inertia, making people worry whether they will fall headlong into the stinking garbage , and then fell asleep forever.

Meng Chao's eyes twitched slightly at the even more outrageous scene than the leprosy village deep in Chaocheng.

Especially when he discovered that two children were wearing a small and exquisite colored snail around their necks, but it was so polluted that the color could not be seen clearly.

But he was not impulsive.

The experience of fierce battles in Dragon City and the continuous awakening of memory fragments from his previous life have made him grow into a ghost assassin ten times better than his previous life.

Know how to lurk silently, patiently look for opportunities, if you don't make a move, you must seal your throat with a sword.

"These rat people's children are doing the most common dredging and cleaning operations. Even if the clan warriors can bear the stench and come here, they will not find anything abnormal. They are not the targets I am looking for."

Meng Chao put his ear against the pipe wall and listened, and found that the sound and vibration of the excavation came from deeper underground.

It seems that he has not reached his destination yet.

This is the shallow surface.

The scale of the sewage pipe is huge, not only is it more than three to five meters in diameter, it is enough to accommodate Tauren Warriors or Wild Boar Warriors to pass side by side.

Moreover, it extends in all directions and is intricate, like an underground labyrinth, spreading towards various areas of Blackhorn City.

Not all the pipes needed to be cleaned, many places were dark and there were no litter bugs at work.

Even in places where garbage worms gather, they are often dizzy from the stench of poisonous gas, tortured to the brink of death by heavy labor, their eyes are only focused on a very narrow space in front of them, and they have no intention to pay attention at all. It is also impossible to see, close at hand, a shadow as thin as a cicada's wing is moving rapidly in the darkness.

Meng Chao easily bypassed several teams of garbage bugs.

Gradually dive into the ground, at a depth of thirty to fifty meters.

The pipes here are getting narrower and narrower, and the air is getting more and more dirty. It takes a long time to sneak before you can see a little bit of swaying fireflies.

It stands to reason that it doesn't look like there is a large group of people working on the soil.

But Meng Chao recaptured the unique aura on his cloak.

This means that half of the face or someone else sent the rags torn from his cloak here.

After thinking about it, Meng Chao used an iron drill to drill three holes in the shape of "pin" vertically on the wet ground with a certain distance apart.

Then, scooped a few handfuls of sewage from the corner of the pipe and poured it into the hole until it was flush with the ground.

He lay on the ground, carefully observing the speed of the liquid level drop and the bubbles emerging from the depths of the hole.

This is the technique Lu Siya taught him to judge whether there is a hole in the ground below.

If this is the bottom layer of the underground space, there are tight and uniform rock formations below.

Then the speed of the liquid level drop should be relatively slow, and the speed of the liquid level drop should be almost the same for the holes in three different positions, and there will not be too many bubbles coming out.

If the drop rate of the liquid level is fast, the drop rate of the liquid level in the three holes is uneven, and a large number of bubbles come out, it means that there may still be a huge space below.

If the liquid level drops extremely fast, and there are no deadly rock formations around, then there may be underground structures constructed of reinforced concrete or even metal.

"Sure enough, this is not the deepest part of the ground.

"Below these sewage pipes, there is a larger and more complex underground space system.

"It's a predictable thing.

"You know, even the underground of Dragon City has layers of underground spaces hundreds of meters deep.

"Some places are military facilities built in the Earth Age to prepare for World War III.

"In some places, after traveling to another world, relying on the ancient ruins, the beehive dungeon continues to extend.

"Dragon City only has a short history of a thousand years, and the real large-scale modernization of the city has only happened in the last two or three hundred years.

"The peak period of Turan civilization's real prosperity and prosperity was thousands of years, or even nearly ten thousand years ago.

"Thousands of years ago, the ancestors of Turan, who were able to modulate mandala trees and totem beasts, and made super armor such as totem armor, what kind of facilities they built underground is really exciting!"