The Black Fort was built at a time that coincides with Brino, and it is a landmark built after the rise of Brino. The underground sewers below the www.biquge.info have a new smell, there is not much rain here, and the pasted concrete above the head looks no different from a freshly dried concrete block.

The beam of the flashlight hit one side of the waterway, where the concrete was a little lighter than the surrounding color, and it was only after the fact that it was picked up. The difference is stark, in the shape of a gap, another waterway that was later re-blocked.

Kasia strapped a flashlight to her waist, took out a small shovel she had prepared in advance, and made sure that there was no one else in this long waterway except for herself and the running rats, and then began to tap the small grooves along the shape of the gap.

This was to put the small craters for those timed blasting shells, and after discussing with Lina in the morning, Kasia decided to choose the aspect that she was most familiar with and good at as the breakthrough point for this mission. Their current plan lacked only the necessary chaos, and in order to ensure that the operation at the party went smoothly, Kasia felt that he had to add something to them. Putting all the possibilities on someone else's side, he and Lena both felt uneasy.

So after the discussion was completed, they set off from the small hotel and went to the trading building first, bought a detailed map of the underground sewer map of Brino, and then rushed to the Black Fort, which still had plenty of time. The waterway, which had been abandoned halfway through construction because of the complete problem of the Black Fort, was discovered on the way over.

The Black Fort is the largest and most luxurious hotel in Brino, and it caters to either the small heads of a faction or the big patrons who have come here from the Grayland or the Empire. Originally, the designers planned to connect the underground water directly under the Black Castle to facilitate the discharge of domestic wastewater every day. However, considering that there was such a big safety hazard underneath, and anyone could get into it through the waterway, the design was changed, and the waterway of the Black Fort was designed to be semi-independent, with only one interface to the urban waterway network system, and there were also people to guard it in terms of safety level. It is almost impossible to break through there without being detected.

The abandoned route was only halfway completed, and according to Kasia's estimates, it probably only reached the outskirts of the Black Castle Hotel, not close to the core.

But that was enough, and Kasia was only trying to create chaos with the sound of explosives and local vibrations, or to create an opportunity for those who were opposed to the Imperial Mineral Source Company and the Triprima Syndicate. He didn't think about blowing up and sinking the entire Black Fort. He may have had this idea in his mind, but the amount of explosives he had purchased from the Exchange House was completely insufficient.

Lina, on the other hand, is responsible for probing the differences from the panoramic map, as well as observing the number of security personnel around the Black Fort and the station, and roughly judging its strength, so that it can choose the most suitable route to escape at night.

Quickly digging the hole, Kasia brought dozens of timed blasting rounds to the same time, all of them into the grooves.

Hiding not far away, he took a look at his watch, and the hour hand pointed to half past one.

"The plaza above must be very lively. Before the last note of the exclamation could reach far out of the waterway, a dozen directional blasting bombs on the side rang out on time, and the muffled sound was constantly compressed and amplified in the narrow area, and Kasia felt that a layer of misty air had gathered in his ears, and the sound became quieter.

And the square above the waterway has been occupied by a lively crowd. Brino was built on a gentle slope, and the structure of the underground waterway was staircase-like, separated from the ground very deeply, and the faint movement below was completely buried in the noise and unnoticed by even one person.

The fat rats did not lose their nimble speed and flew through the waterways, away from the site of the explosion.

When the lights came back on, all the rats crouching there ran away. Small pieces of blasted concrete splattered out and landed on a pile of mold-strewn bones on the ground. Kasia stood where he was and waited for a while, when there was an exit from a waterway not far away, and when he saw that there was no movement there, he was relieved that he had not attracted anyone's attention, and walked over.

There is a lot of concrete used for sealing, and there is also a layer of sintered hard red bricks, and its overall thickness is about one meter. In all these years, not even a rat has ever made a hole in this place. However, Rox's blasting bombs were designed to make holes in the base's protective walls, and they were no problem dealing with them.

A large piece of circular building had completely fallen off the wall and was very heavy. Kasia pushed it inside with all his might to give him a gap to get into.

"Bang"

The hard, lumpy rock-like building fell inside, and the dust that stirred up the air with it rolled back into Kasia's face. He hurriedly took a step back, the afterglow of the bright lights illuminating his face that had become surprised.

In the abandoned line, which has been closed forever, what should exist is the infinite depth of darkness and the air that smells of decay. They will be like the tracks of a train that no longer run, and they will be covered with rust in the continuous cycle of the seasons until they are washed into the dirt by the rain. But in the air from the shop, there was nothing but the smell of dust that had not changed for thousands of years.

The darkness is not there, the smell of decay is not. On the contrary, there is even a hint of moisture.

A hundred meters ahead, Kasia's eyes caught a faint light. I also felt the air on my face.

Walking inside, the ground is dry, and the scenery under the lights is also an ordinary underground sewer scene, and there is nothing special about it. There was not a patch of unexcavated dirt at the end, where Kasia saw several thick red copper pipes, more than a dozen times larger than the usual steam pipes, and the faint light came from under several pipes.

"Shouldn't the steam and power pipes that supply the city of Brino be buried in a shallower layer?" said Kasia, with a slight suspicion in his heart, as he quickened his pace.

There were far more pipes than he could see, and behind these thick pipes, there were more densely packed pipes that extended into the darkness. There are dozens of them, and under the light of the flashlight, there are different numbers on them.

Looking down, Kasia finally saw the source of the faint light she had captured when she pushed the building block apart not long ago.

Because he had heard what Lina said in the morning, what he vaguely guessed at the moment was not wrong. The ground of the Black Fort has long been hollowed out, which is simple for the Imperial Mineral Source Company. They then built it into a hub for smuggling transactions. (To be continued.) )