In winter, the old Dunling was particularly cold, the rising steam condensed into dew on the surface of the metal, and cast into frost to cover it in the low temperature, and people wore heavy clothes, and under the light of the night light, a faint white air rose and fell with the breath.

The cold was blazing like never before beneath the surface, and the heavy floodgates slowly opened, and then the water of the Thames poured in from the rusty tunnels, through several layers of strainers, and finally reached a depth of tens of meters underground, where a huge amount of water poured into the blazing boiler, and then the machinery rotated, and the gas with a volume rushed through the pipes.

It was a cobweb-like system that lay beneath the ground, flowing through its path with raging burning energy and into the inverted well.

The dark bottom turned crimson, and the power of technology was born in it, and the next moment a hundred degrees of hot steam gushed out, spreading along the pre-set pipes towards the entire surface of the old Dunling, so that in a few minutes the hot steam filled the streets of the old Dunling.

This is a miracle of humanity, and everyone who sees it can't help but kneel down and pray, because it is a behemoth that only appears in mythology.

The Furnace Pillar System, currently the largest steam engine system in human history, was built under the old Dunling, providing energy for the entire Old Dunling, after decades of continuous expansion, it is like a steel tree rooted in the old Dunling, the rhizome continues to expand around, and few people know its specific full picture.

Nikolai still looked depressed, but this time he was more serious, the air smelled of rust, and with the sound of his footsteps, the light above his head dimmed, and it went on and off.

Stepping into the elevator, he entered the code, the rusty steel slowly closed, the cable dragged, and he fell deeper into the darkness.

There are many secrets hidden beneath the Old Dunling, not only the complex Furnace Pillar, but also the subway system that runs through the entire Old Dunling, but what people don't know is that deeper down the ground is the location of Invig's highest scientific research institution, the Perpetual Pump.

Keep going down, down.

Suddenly a light shone through the blurred darkness, the door of the elevator opened, and a new scene appeared before Nikolai's eyes, the white-clad scholars pacing back and forth in front of their instruments, and every now and then an electric flash flashed through the tall dome, striking the insulating barrier and triggering dazzling sparks.

There are anaconda medas gnawing on their tails, tangled in the solidity of steel, turning into infinite symbols.

That is the symbol of the perpetual motion pump, which was confirmed by the first director of the perpetual motion pump, and the highest goal pursued is also very simple, just like the symbol and its name, the never-ending pump, the miraculous creation of the perpetual motion machine.

Thinking of this, Nikolai pulled a slight self-deprecating smile on his face, everyone here knows very well that such a thing as a perpetual motion machine cannot exist, and even if it exists, it is only in the so-called myth, but even so they want to try, and use science to create the so-called miracle.

"Has the thing arrived?"

Looking at the staff on the side, they knew exactly what Nikolai was asking for, and replied.

"It's been sent here by the Mechanical Institute, and it's on standby at the No. 3 experimental site. ”

Perpetual motion pumps are essentially a system encased in the pillars of the furnace, and beneath their feet are the combustion chambers that burn day and night, into which hundreds of tons of coal are fed through the channels, and the boilers release the power of steam to put the mechanical beast at their service.

Above the head of the perpetual motion pump is the old Dunling Mechanic Institute, they belong to the perpetual motion pump jurisdiction, on the surface in the name of the machinery yard has a huge industrial area, in which the automation factory is running wildly, and all this priority for the perpetual motion pump under the service, it can even be said that the mechanical institute is to camouflage here.

The gates of the passage slowly opened, accompanied by a rumbling sound, as if pushing open a world of heaviness.

Nikolai did not enter the third experimental field directly, with the help of the staff, he put on a heavy protective suit, relying only on the lens in front of him to observe the outside world, there was an electric current in his ears, and the communicator built into the protective suit was connected to the channel.

"I'm ready and starting to get in. ”

Nikolai's voice is echoed in the isolated hazmat suit).

After a while, the voice rang in his ears.

"It's accessible. ”

Then he stepped into it.

Huge high-strength glass cordoned off the entire test site, and the controller was on the highest command platform, and in the corner the soldiers were on guard with rifles for possible surprises.

The protagonist of this experiment is at the front of Nikolai at the moment, lying quietly on the steel operating table, and a group of people wearing the same protective clothing as Nikolai are standing around.

"How's it going?"

"We just opened his cavity...... A small slit to be exact. ”

The voice sounded directly inside the protective suit, and Nikolai couldn't see the man's face clearly, he was covered by the protective suit like him, and he could only rely on the nameplate in front of him to determine each other's share.

"Maxwell, what do you mean?"

"If you look at it, it's really weird about witchers. ”

Maxwell moved out of the operating table so that Nikolai could get a closer look at him.

It was a corpse that was already indistinguishable in human form, blood mixed with holy silver, almost like a deformity of steel and blood, with the power of abomination and chaos.

It was Eddard, the corpse recovered from the battlefield by the scavengers who had cleared the trap after Operation Endertown and sent it to the Perpetual Pump for study.

The power of the witchers can be seen in Lorenzo's violent power, and they are essentially a group of demons, so the Perpetual Pump spent several days renovating the No. 3 experimental field, in order to prevent the pollution of the demon hunters from spreading, and this group of scholars can only wear heavy protective clothing in order not to be affected.

"It's a strange metal, we cut a small piece for chemical analysis, and the results are not yet available, but at the moment we can confirm that this metal called Holy Silver has a suppressive lethality to demons. ”

As the vessel rose with the machinery, it could be clearly seen that the demon's blood had become lazy under the metal of the holy silver, and after the contact was untouched, it was like encountering strong acid, and the blood was twisting and rotting.

Maxwell continued.

According to the reports of the shrike and others, the witcher named Lorenzo explained the metal of holy silver in this way, saying that it was a blessed metal, and that when it was smelted, the dying saints would leap into the furnace and become one with the metal, giving it a divine quality. ”

The mythical process of production is such that even listening to the narration can be imagined, in the boiling liquid metal, the old saint mutters the prayer of the Holy Spirit and steps into it.

"Would you believe that? Maxwell, the so-called blessing of faith?"

Nikolai was dismissive of this.

"The easiest way to disguise a technique is to deify it, and pedantic people will keep to the sacred doctrine, but they don't think that the original doctrine was also told through the population. ”

Looking at the violent reaction in the vessel, Nikolai had only rational joy in his eyes.

"There are no gods, everything can be explained by formulas, if not just because we don't understand the nature of this knowledge. ”

Nikolai pulled down the cāo) longitudinal pole on the side, and the vessel slowly sank.

"I think we have a new goal, to try to reproduce the Holy Silver based on these samples, which will be more lethal to demons than fire. ”

New tasks were assigned, and the voices were transmitted directly to the command room, where a dedicated clerk recorded all conversations during the experiment.

A new sequence of experiments was added to the procession.

Nikolai then moved his gaze to the operating table, looking at the broken body with solemnity and uncontrollable curiosity.

"Now, tell me about the strangeness of the witchers. ”

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