Steel steam and flame

Cassia adjusted the switch on the pneumatic sword to keep his temperature in a suitable range, which is also a range that he can currently withstand. The surgical development of the heat resistance of the arm has not yet been completed, and only half of the process has been completed. However, due to physical reasons, it can still be completed by using pneumatic weapons in the lowest range for three or four minutes.

"Chi!" The red-hot sword made a sharp sound when it touched the ice. White steam suddenly spurted out from the contact surface between the two. After rising to a height of several meters, most of the steam became slow again under the cold temperature. Falling frost powder. Only a small amount of steam rose into the sky.

This is not a good idea. As the steam gathers, it is only a matter of time before they rise into the sky and become a more eye-catching signal. Cassia seized the time and slowly cut the ice under her feet piece by piece. Whenever you feel a burning sensation in your arm, turn off the pneumatic sword and place your arm next to the ice to cool down. It also alleviates the accumulation of steam to a certain extent, preventing it from quickly becoming a conspicuous target.

From time to time, he would look at the time. When the enemy finished searching the vacated area, he would definitely think of himself running to the top of the mountain. If he had not completed his plan before that, Cassia thought that his results would not be very good. He couldn't resist the firepower of ten airships no matter what. Just the bullets from the machine gun can slowly deplete one's life in a matter of minutes depending on the number.

The results of more than half an hour were not very satisfactory to Cassia. The effect of pneumatic weapons was not very significant in the face of centuries-old ice due to limitations in usage power. These layers of ice are both as hard as steel and as cold as the pneumatic sword itself. It only went down about two meters deeper, and was less than three meters away from the increasingly clear condensed lava, but the cutting speed became weaker.

There was only a piece of dark red light that was refracted hundreds of times by the ice. Amidst the sound of "chichi", Cassia held the pneumatic sword like a machine, patiently cutting the ice under her feet little by little. The black condensed lava is right in front of you. You only need to destroy the cold-colored ice layer under your feet to reach them.

Cassia exhaled at this time, like a valve releasing, letting out all the fatigue and stress in her body. Looking up, the sky above has turned into a dim color. It was already evening, and it had been a few hours since I arrived here.

"The enemy has probably noticed it." Cassia thought. With a crisp shattering sound, the ice under his feet cracked. He kicked a few times to expand the cracks on it, and the cutting speed of the pneumatic sword became faster. A shot of sulfur smell broke through the ice blockade one step ahead, dispersing around with the smell that had been frozen in time for hundreds of years.

The ice layer was finally cleared by Cassia without any accident, and the condensed lava already had some temperature. Under the rock is the terrifying energy that has been accumulated for a long time. You can even feel a slight vibration from it if you touch it at close range. Taking out another fuse tube, Cassia dug a small pit in the condensed lava and placed the fire blunderbuss underneath so that the electricity in the fuse tube could be better conducted. Prepared, Cassia stood up in the narrow space, avoiding the sharp ice blocks that had refrozen, and climbed up.

Halfway through, countless sound wave lines were pressed down from the sky. The sound source took on the shape of a six-pointed star, surrounding him. The movement immediately sped up, and Cassia's body seemed to flow upwards along the dug ice pit, arriving at the edge of the circular device in a short moment.

Without any hesitation, he took out the hexagonal prism rod and inserted it directly into a hole in the device. Before the hazy white light expanded, a piece of orange-red appeared out of thin air on the crater and slammed down on the dark blue ice. It has become a hot spring with strange colors. The firelight is refracted through the ice, making it look like a dream.

Immediately, the machine gun bullets separated in mid-air with bunches of light red lines, and exploded first on the ice. The fine ice cubes splashed up, and before they fell, they turned into scattered steam under the impact of the flames and heat waves generated by the explosion of the aircraft cannon.

The expanding fireball eventually turned into thick black gunpowder smoke, billowing and rising in the impact of mutual attacks. The machine gun bullets tore them apart again, reducing the thickness of the ice layer by layer.

"Calculate the wind direction and launch all cloud bombs." A calm voice sounded in the control room.

In less than half a minute, more than a dozen huge steel blocks were projected from six aircraft and airships. Being ignited in mid-air, the flame tail became slightly bent in the strong wind, but it did not affect their smooth explosion above the wind.

The white jellyfish-shaped powder spread out almost at the same time, and the wind caused them to overlap and form a huge net with no gaps. The thick smoke billowing below was even obscured by this color. Under the precise calculations of the analytical machine, at the moment when the powder network was completely covering the crater, several sparks flashed out.

"Boom -" the sound wave spread, all the white powder was ignited, and the huge fireball was like a substance, and it suddenly fell inside the crater. The concave geographical environment intensified the power of this explosion. After a few seconds, the fireball was catalyzed by its own impact and heat. A huge fire pillar rushed into the dim blue sky, and a transparent shock wave spread from the top of the mountain. It's like an air cavity created by a bullet hitting water. The impact even found its own shape on the thunderclouds below. A huge ripple-like wave centered on the mountain and rushed to all directions. After two or three thousand meters, it completely disappeared. The thick thundercloud was almost dispersed and pushed down to a height of more than ten meters, which completely offset the force of the close impact.

The mountain shook, and the ice cracked and slid downward. But the attack did not stop there. In this short period of time, all six airships unfolded their camouflaged steel decks, revealing several rows of neatly staggered aerial bomb launch holes on their sides. The aerial bomb emerged from the flames ejected from the launch hole, impacting the root of the pillar of fire below.

The expanding flames seemed to undergo a chemical reaction, as if they were fragmented in the explosion of an aerial bomb. At this time, the pillar of fire finally turned into a mushroom-shaped thick smoke cloud, which spread out layer by layer and rolled higher into the sky.

"The remaining ammunition is 80%,,,70%,,,,50%,,,,"

"The remaining 30% will be reserved for backup, and the rest will be launched. When the smoke dissipates, I don't want to see anything complete below." El interrupted Stian, with a gleaming look on his face. He stood at the window and quietly looked at the scene below. It was like admiring paintings by famous artists in a museum, with a look of indulgence and unconscious joy in his eyes.

This small patch of sky was illuminated by fire, and a layer of fiery red coated the top rocks and airships. The impact of the explosion disrupted the direction of the wind, and the smoke and flames mixed together, tearing and merging simultaneously in El's eyes.

"Thirty percent of ammunition remaining!" After Stian's words fell, all six airships stopped attacking. Only the faintly red muzzles and bomb launchers "sizzled" in the strong wind. The sound of cooling is like recalling the heartfelt roar just now, and the meaning is still unfinished.