Struggle in the Steam Age

The human counterattack was very smooth, and soon they cleared away the group of goblins gathered in front of the barbed wire. And the goblins who were cut off by the shells at the rear could only watch helplessly as their companions in front were completely wiped out.

But the mortars can't keep shooting. Even if the dwarves added a lot of magic metal when the mortar barrels were manufactured, the level of steel in this era still makes Lawrence's strict requirements on the weight of the artillery. Mortars cannot fire continuously for a short period of time.

Therefore, after firing twenty shells in a hurry, each cannon had to temporarily stop firing to let the barrels cool down. While waiting for the cannons to cool down, a light visible to the naked eye swept across the battlefield from the back of the goblin. All the goblins on the ground, and then the goblins who started to flee mustered up their courage again and rushed up.

"Large-scale magic." Lawrence recognized what the goblins were doing the moment the light appeared, and Nora, who was scouting in the air, also saw what was hidden behind the goblins.

"My lord, the other party has hidden an altar, and it's not a low-level one." Although relying on the cover of divine power, the goblins successfully carried an altar to a distance under the circumstances of Lawrence's repeated investigations before the battle. The close proximity of the battlefield perfectly fulfills the raid mission. But after casting the magic spell, the altar as the source of the magic spell couldn't be hidden, and it was soon discovered by Nora who was watching from the sky.

"Do you need me to destroy that altar now? The other party's altar is hidden in the middle of several hills, and there are only a few people guarding it. If it is a sneak attack, I personally think it is not difficult to take down that altar." The first time she found the altar, Nora Just contact Lawrence and ask for instructions.

"There's no need to take risks." Lawrence stopped Nora who was eager to try and said, "My secret weapon is also ready. It's a good thing to let the group of goblins charge now, so that I can catch them all. I won't have to do it later Catch the stray goblins all over the woods."

While Lawrence was speaking, a large number of yellow-green bottles with water disinfectant written on them in white paint were taken from the underground warehouse temporarily dug up in the settlement and sent to the front trenches. At the same time, another batch of mortar shells with warheads dyed yellow-green was also sent to the artillery positions.

"Let's implement the final plan." Seeing a red flag being raised on the second-line trenches and mortar positions at the same time, Knight Laurence Joseph said. "I think it's about time, and the wind direction and speed are just right."

"You're right." I took a closer look at our own flags on the battlefield, and then looked at the passages protruding from the corpses of the goblins that fell before. A horde of goblins approaching. Knight Joseph immediately issued an order to the orderly behind him. "Send a signal, raise the red flag that represents the frontal battlefield."

Soon, a red flag was raised behind the command post. The commanders of the first-line troops who had been staring at the command post before saw the signal and immediately blew the copper whistle hanging around their necks.

In the rapid sound of copper whistles, the batch of flat wooden boxes that had been placed in front of the trench before were blown up one after another, and then the steel balls that broke the lid of the wooden box and flew forward in a fan shape knocked those The goblins not far from the position were swept away. Taking advantage of this gap, the soldiers in the first-line trenches retreated along the traffic line to the rear.

When everyone retreated, the goblins whose offensive momentum was knocked down by the directional mines placed in front of the position just now rushed up again like a tide. This time, because of the retreat of the guards in the trench, they easily rushed to a place only a dozen meters or even a few meters away from the trench. In some places, some goblins even frantically lay down on the barbed wire, and then let their companions step on their bodies to cross the last section of barbed wire and rush into the trench.

"Beep—" There was another fierce whistle, and more than 100 personnel wearing rubber raincoats and rubber gas masks that looked like pig noses quickly opened the tunnels that were placed more than ten meters behind the first trench. Green cylinders on the edge of the second trench.

In an instant, thousands of steel cylinders released a large amount of yellow-green gas at the same time. Then, under the breeze blowing from the sea to the land, it spread to the front of the position. At the same time, those mortars also fired the special shells prepared just now to the rear of the goblin army, creating patches of yellow Green gas barrier.

After touching the green gas, the goblins fell in pieces like wheat cut by a scythe. This made Fatina, who was standing beside her, look puzzled.

"Stinky cloud technique? Throat lock gas?" Fatina murmured softly, looking at the fallen goblins, "How many scrolls will it take to cover the entire battlefield?"

Unlike Lawrence's previous life, people in this world have no moral issues with using poison gas. It's just that because the previous poisonous gas was all related to magic, it couldn't be widely used in application.

"This is the power of science and knowledge." Seeing that the overall situation on the battlefield has been settled, Lawrence turned his head and said to Fatina with a relaxed face, "I didn't use any magic scrolls, I just bought them from the Federation. Just 30 tons of chlorine gas."

After the last typhoid outbreak in Fort Eagle, the Federation began to seek solutions to the city's water pollution. After all, the attack made the Federation realize that although the water supply system in densely populated areas like cities is much safer than the shallow wells dug by private individuals in the past, it is also prone to the spread of such large-scale diseases.

As a member of the Federal Science Association, Lawrence naturally also received a letter of inquiry. After receiving this letter, Lawrence only thought about it briefly and came up with a countermeasure. The solution is actually quite simple, and that is to disinfect tap water with chlorine gas.

After all, this solution has been used for more than 100 years since it was invented in the world of his previous life, and it has been used by various waterworks until Lawrence accidentally came to this world, so it must have an excellent aspect.

Finally, when Lawrence returned from the Republic of New Zealand, he received a letter from the Federation, which stated that his plan was adopted by the Federal Government because of its low cost and simple operability.

Although at the beginning he was a little worried about how they could get cheap chlorine gas without electrolysis, but later he learned that electrolysis can be replaced by a simple magic, and for mages, as long as they are busy The chlorine gas decomposed from the salt water in about an hour can be used by a big city like Eagle Fort for three days.

In addition, the well-developed steam engine industry can also provide sufficient pressure vessels for the transportation of chlorine gas. Therefore, as long as a few mages are hired to build a chlorine gas production factory by the sea, the chlorine gas can be easily transported to major cities by rail. In terms of versatility, it is also much better than other methods.

Therefore, when Lawrence got the title of earl, the novelty of chlorine gas disinfection had already become popular in the major cities along the coast of the White Eagle Federation, and it was rapidly spreading to the inland cities.

And it was under such circumstances that Lawrence successfully obtained 30 tons of chlorine gas to produce a batch of steel cylinders and special bombs for casting. They were transported by Safir's ship before, and they are all used on the battlefield today. superior.

Now it seems that the first use of this poisonous gas has an excellent effect. As the gas continues to spread to the group of goblins, most of the goblins whose physical fitness is not as good as humans die quickly. A small number of bear goblins mixed with ordinary goblins, hobgoblins and after all, although transcendents can resist the attack of poison gas on them, their way of rushing to the second trench in a scattered manner is only for those guards who are ready to fight. They are just sending heads.