Those who reincarnate must die.

"We did it!" Everyone cheered with joy!

Feng Xi was also astonished by this achievement!

It was just a tiny flame a moment ago, how come changing the recipe and proportions has caused such a huge commotion? Could it be that this really is a weapon capable of defeating insects?!

The gunpowder formula has been finalized; the next step is to develop a finished product!

How can gunpowder be made to exert its maximum power? It's simply a matter of making firearms or explosive weapons.

The principle of a musket is very simple: gunpowder is loaded into a sealed iron tube, a bullet is placed inside the tube, and the bullet is fired by the force of the gunpowder explosion to kill the enemy.

Explosive weapons, on the other hand, involve wrapping gunpowder in a package, lighting the fuse, and throwing it out to kill enemies directly through the explosive force; they are commonly known as explosive charges.

To manufacture a musket, you first need a barrel, which cannot be made in a short time, so the only option is an explosive charge!

The key question is what to use to wrap the gunpowder!

Firecrackers, as we commonly see them in everyday life, are usually wrapped in paper. However, on the battlefield, to increase their lethality, they need something much harder, with greater shrapnel force upon explosion!

Le Xinyi had a sudden inspiration and thought of something that was in every barracks—hard enough to break easily, and the perfect size…

That's a helmet!

Upon arriving at the barracks, they noticed that the troops here varied according to rank; generals typically wore iron armor, while soldiers generally wore only leather armor. However, regardless of rank, all their helmets were made of iron! The only difference was the number of armor plates used and the quality of the workmanship.

Indeed, the forging technology in this world is obviously still very primitive. There is no plate armor, and only officers have the exquisite visor helmet that Feng Xi wears. The helmets used by soldiers are made of small pieces of iron connected together, and at most there is a whole iron plate on the top of the head.

And such a helmet? With a little modification, if a large amount of black powder is packed inside and it explodes, it is no different from a large fragmentation grenade!

Thinking it and doing it? They experimented directly with their own helmets. The helmet plates were mostly lined with leather. They wrapped gunpowder tightly in straw paper, stuffed it inside, and sewed the lining together. Then they used rolled-up paper to hold saltpeter powder to make a fuse and clipped it inside, thus creating a bomb.

If the armor plates were too stiff, they'd break one or two connecting ropes. If the leather couldn't hold them together, they'd disassemble the leather armor to use as a makeshift solution, inside and out. In short, after more than an hour of tinkering, they finally managed to sew four bombs.

This time, they chose the largest training ground, and Liu Xingwei and Ye Peng even set up shields for protection.

The task of igniting the bomb was assigned to Zhang Lang. He held the helmet bomb in one hand and a torch in the other. He looked back at Feng Xi and the reincarnators hiding behind the shield, nodded, lit the bomb, and threw it out.

It was already late at night. The soldiers, exhausted from a day of fierce fighting, had long since fallen asleep. Even the marshals, generals, and strategists inside the castle were fast asleep. Only in their dreams could they forget their dire situation, forget the monstrous insects and the fallen soldiers…

But just then, a deafening roar shook them awake from their warm beds!

"BOOM!!!"

After the loud bang, the entire fortress was silent for a few seconds, followed by a chorus of curses and the frantic sounds of people putting on their clothes and armor.

"What happened?!"

Marshal Meng ran out of the bedroom wearing his overcoat. There were no soldiers standing guard at the door; they were all peering out the window.

"What are you looking at? What's going on?"

Upon hearing the marshal's voice, the soldiers hurriedly turned around and knelt down: "Reporting to the marshal, just now, flames suddenly shot into the sky over the drill ground, followed by a loud explosion, alarming the entire fortress!"

"Fire? Loud noise?" The marshal gasped. "Such strange phenomena, could it be an ominous sign that the fortress is about to fall? Quick, put on my armor, I need to go and see!"

…………

In the dead of night, the parade ground of Sunset Fortress was crowded with people. The soldiers inside were making sounds of admiration, while the soldiers on the outside kept looking around.

Soon, the marshal and other high-ranking military officers arrived, and the soldiers automatically made way for them. The marshal entered the drill ground, where he saw a patch of scorched earth on the rammed ground, and nearby weapon racks were overturned and scattered all over the ground, creating a scene of utter chaos.

"What exactly is going on?" the marshal asked, frowning.

Feng Xi rushed to Commander Meng, her face beaming with excitement: "Marshal, it's General Yuan's former subordinates testing a new weapon at the drill ground! That weapon is incredibly powerful; it can truly annihilate the insectoid race!"

"A new weapon?"

The marshal's eyes lit up upon hearing this. He hadn't held out much hope when he heard they were going to conduct experiments; it was more of a last-ditch effort. But now, thinking of the loud bang and the flash of light, if it really was a controllable weapon, wouldn't that be wonderful? This thought completely erased his annoyance at being woken up in the middle of the night.

"Quickly, bring them to see me!"

"Greetings, Marshal!" The reincarnators stepped forward, carrying several unused helmet bombs.

The marshal nodded: "I heard that loud noise was caused by you? Is that what you're holding?"

"Excellent!" Le Xinyi stepped forward to report. The young girl was beautiful, had a sweet voice, was approachable, and was also bold and intelligent. She had the highest success rate in persuading the marshal.

"This formula was discovered by chance by General Yuan when he was fighting against insects!"

Le Xinyi grabbed a handful of gunpowder and handed it to the marshal:

"It ignites explosively upon contact with an open flame, possessing immense power. We call it gunpowder. General Yuan originally intended to mass-produce it to combat the insects, but before he could realize it... We witnessed the ferocity of the insect swarm these past two days and came up with this formula. We thought that if it could be used to make weapons, it would surely be able to repel the insect monsters!"

"gunpowder?"

The marshal had never heard of this name before. He reached out, pinched off a small amount, rubbed it between his fingers, and then sniffed it.

"Does it smell like saltpeter and sulfur?"

"Marshal is wise!" Yue Xinyi stepped forward with her hands clasped in respect: "Gunpowder is made by mixing sulfur, saltpeter, and charcoal powder in a certain proportion."

"We have plenty of sulfur and saltpeter in the fortress!" The marshal frowned. "They've been used for fire attacks for years, just mixed with some charcoal. Are they really as powerful as you say?"

"Whether it's powerful or not, we'll find out soon enough!" Le Xinyi picked up a helmet-mounted bomb: "I hope the Marshal will order the soldiers to withdraw from the training ground and raise their shields to avoid friendly fire!"

The marshal immediately gave the order, and soon the soldiers set up a shield wall around the training ground, and the reincarnators began their experiments.

The task of dropping the bomb was still assigned to Zhang Lang. As the fuse slowly burned, the hearts of the soldiers watching were in their throats. The marshal even peeked out from behind his shield to see what was going on!

"Lie down!" Feng Xi grabbed the marshal and pulled him back behind the shield.

At the same time, a deafening roar came from the center of the training ground, and billowing smoke and fire rose up. The soldiers surrounding the training ground immediately felt a great force coming from their shields, and those with less strength were almost knocked to the ground!

Only after the smoke and dust cleared did the soldiers dare to peek out. Seeing the charred patch in the center of the drill ground, they couldn't help but swallow hard. So, that strange phenomenon, which resembled a natural disaster, was really caused by human intervention?

"Haha, beautiful!"

The marshal burst into laughter with joy:

"With such a wondrous creature, what is there to fear from insects!"

As he spoke, he glanced around and asked, "Was anyone injured just now?"

Several soldiers quickly stepped forward; they had all been hit by shrapnel, specifically the armor plates on their helmets, but fortunately, none of them sustained vital injuries and their lives were spared.

"How did you get injured?" Seeing someone was wounded, the marshal was even happier. "Which shield were you all hiding behind? Bring all the shields over so I can see them!"

The shields were placed in front of the marshal, many of them with armor plates stuck in them. Some of the thinner plates were even pierced, leaving only bullet holes, which were probably the shrapnel that injured those soldiers!

"The training ground is several meters in circumference, and the armor fragments ejected from this thing after its explosion could actually pierce through a solid shield. Amazing, truly amazing!"

The marshal was greatly impressed: "Give those wounded soldiers an extra month's pay so they can recuperate properly. Order the artisans to use this... gunpowder formula to manufacture weapons overnight... no, not just the artisans, have all the skilled soldiers help out, and make sure to produce five thousand by sunrise tomorrow..."

He hesitated for a moment, then asked Yue Xinyi, who was standing beside him, "What's that thing called?"

"We call him a bomb!"

"Bomb, haha, what a great name!" The marshal exclaimed happily, "Let's make bombs overnight!"

"Reporting to Marshal Qi!" Yue Xinyi bowed again and said, "Actually, while the bombs we make are powerful, they are too cumbersome and waste gunpowder. In fact, if we seal the gunpowder and leave a fuse, even a smaller dose would be quite powerful. We could even tie them to arrow shafts and shoot them with bows and arrows! That would be much more flexible!"

"Good, good, good!" The marshal laughed heartily, patting Yue Xinyi on the shoulder: "Contributing the gunpowder formula is a great achievement for you. You don't need to go to the battlefield anymore. From now on, stay in the castle and supervise the craftsmen's battalion in their efforts to develop bombs!"

Upon hearing this, the newcomers all beamed with joy. Finding a safe haven in the mission world was a dream come true for any new reincarnator!

However, the experienced craftsmen looked at each other, seemingly unwilling to stay in the castle as artisans.

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