Steel steam and flame

A sword sliced ​​off the camouflaged rock, and the smooth, blackened cut revealed a satisfying feeling. The heat escaping from the sword can be clearly felt in his hands. Although Cassia has not yet completed the surgery to develop heat-resistant arms, his physique allows him to use the pneumatic sword for several minutes without any problems.

Using sound wave detection to figure out the internal structure of the metal gate, Cassia carefully avoided the power pipeline that drove him and carefully cut it from its root. The blade of the sword circled around the circular metal gate without any hindrance, and the molten metal condensed into a strange shape at the incision.

They have always been in a calm state, because the dozen or so people beside the steam furnace also seemed unhurried. Cassia guessed that she was probably infected by their leisurelyness. After waiting for more than half a minute, when the temperature of the solidified metal reached the range that can be touched by the palm of the hand, Cassia spread his hands, directly grasped the incision, inserted his fingers along the way, carefully lifted one of the gates, and put it aside.

It's very high-quality, half the door probably weighs close to a ton and a half. Behind the door were stone steps carved out slowly downwards. Cassia did not walk in until the heat of the pneumatic sword had dissipated.

"Fifteen people..." The light drew a straight silhouette on the steps in front. When Cassia was counting the number of people, he pulled out his revolver and made a few nostalgic movements of changing the bullets in the drum. . It's true that I haven't used this powerful weapon for a while.

There was no sound from the footsteps. When he reached the end of the stairs, Cassia raised the revolver and turned the corner smoothly. There was a long table made of alloy material about the size of a conference table placed in the middle and lower part of the bright light. Water, several weapons, and several communicators with standby lights on were placed on it. There were four people at the table, all doing their own things, mostly reading newspapers and magazines. Only one person was wiping the parts of the disassembled blunderbuss.

The man wiping the weapon parts seemed to be aware of it. The moment he raised his head, the sound of exploding gunshots had already stirred up the water in the water glass on the table into ripples that converged toward the center. The splattered blood dyed a large area of ​​the table red. Cassia glanced at it and then focused his eyes on the revolver's aim.

The real-time data of the remaining eleven people were all changing crazily in his head. Cassia still slowly turned her body and fired a shot at the wall of this room that looked like a lounge.

The rock fragments flew apart, and a large hole was blown out of the stone wall less than a few centimeters. Then another bullet flew out of the large hole, and the trembling sound echoed in the corridor behind the wall.

"Nine people..." Cassia counted to herself, and her servo-driven hands replaced the bullets in the shortest route, the most precise movements, and the fastest speed. When six bullet casings still filled with smoke splashed on the ground with a crisp sound, Cassia turned around and rushed forward to a door facing her behind her.

The iron door was knocked open by the composite bulletproof plate almost at the same time. Several flash bombs poured in and detonated in the air. The strong light drowned everything for a while. It has no effect on Cassia because her eyes are closed, but the enemy is unaware of this situation.

A man came in and half-stepped into the lounge. Holding the shield in his arms, the man kept his body slightly crouched so that his feet were protected by the bulletproof shield. He silently counted the time it took for the flash bomb's light to disappear. When he opened his eyes at the precise moment and observed the situation in the lounge through the bulletproof glass window on his shield, a bullet almost twice as thick as an adult's thumb appeared. The dark muzzle of the gun was pointed accurately at his sight. Then, the bright light of the flames sprayed from the muzzle made him subconsciously close his eyes again.

Without a chance to open his mouth, Cassia fired one shot, rotated his wrist slightly following the sound wave detection, and fired four more shots in succession. After the reverberation of "bang bang" was suppressed by the "buzz" of the steam furnace, Cassia walked into the corridor with blood splattered on the walls, and followed it as casually as exploring a maze with no difficulty at all. Walking posture.

"There are four more people. He should be the leader here." Cassia seemed to be browsing the detailed instructions out of thin air. He carefully walked around the corpse step by step. When passing by, he did not forget to bend down and touch eight steel shells. The bomb hangs on his waist. At this time, Cassia removed the remaining bullets and reloaded the revolver.

The buzzing sound was gradually increasing. At the end of the corridor was a wider mine tunnel, with only flat steel plates placed on the ground. On both sides of the mine, evenly spaced metal supports were erected against the concrete foundation structure, and red copper pipes with a diameter of more than three or four times an adult's waist were pressed heavily on them.

Wrapped in thick yellowing insulation material, the temperature that escapes all year round keeps the mine in dry heat. There is a red copper pipe with a similar diameter on each side, and the others are less than ten slender pipes, only the size of an arm, nestled in the gap between the main pipe and the bracket.

At the end of the corridor, branches with different diameters appeared on various pipelines, and deep holes in different directions were cut into the rock. A dozen red copper pipelines of different sizes were submerged in them, connecting to the internal network of the mine. Everywhere, a steady stream of necessary motivation is provided to the rebel forces.

This mine is very deep. After walking forward for nearly twenty meters, the mine has been artificially expanded into a larger cavity with a length of about thirty meters. The red copper pipelines are neatly arranged here, and valves of different shapes are perfectly installed on the pipelines. Although the level of control and management is not as good as within the empire, Cassia, who is familiar with steam power, has to admire the high assembly standards here.

The number on the pressure gauge is fluctuating extremely quickly within a small range. The servo system driven by hydraulic power moves precisely and flexibly based on the real-time data provided by the differential engine, and adjusts together with other mechanisms to maintain the stability of the steam output.

"I don't know which zone difference machine will be eliminated in the empire. Maybe the operations of various institutions within the entire mine are driven and controlled by an array of several zero-type difference machines. It is not certain." Cassia said in the air He stood there for a few seconds and stopped naturally. This seemed to be a normal reaction when he encountered something he was interested in.

Taking another step forward, Cassia took off the two steel-cased bombs from her waist and pulled out the tabs.

Cassia's footsteps replaced Cassia in counting the seconds. After the ninth step, Cassia chose a point accurately, and the two steel-cased bombs flew out one after another in a calculated route and hit the rock wall of the mine. The great force made them continue. It bounced twice and exploded again.

The air waves hit Cassia's face, and the smoke and dust quickly rolled up and filled a small section of the mine. Knowing something, Cassia walked towards the side at this time, and a series of bullets immediately penetrated the smoke, pulling out dark red ballistic lines and shooting out pieces of gravel on the rock wall not far away.

The speed of the bullets was always one step slower. They all flew not far from Cassia's body, passed through a piece of air, and did not hit anything.