Demon Slayer Division.

Xu Wanyi was listening to the report of the four city walls.

At this moment, his face was heavy and his brows were furrowed, although during this time, the people of their Demon Slaying Division had killed countless beasts, but the moat had also been completely filled with the corpses of wild beasts.

Next, without the moat to block it, the beast tide will directly threaten the city walls.

Even though he firmly believed that the walls of Jinling City were not strong enough for the minions of wild beasts to destroy, as the beasts under the walls continued to be killed, the corpses of those beasts would sooner or later pile up to the same height as the city walls.

At that time, the 10,000 demon troops who were waiting for the battle would definitely kill the piled up corpses on the city wall.

And by that time, the people of their Demon Slaying Division must have been exhausted, and I am afraid that they will not be able to stop the attack of the demon army.

"Do you want to send the people of the city to the walls?"

He suddenly had the idea of mobilizing the people in the city, but then he shook his head again.

Although the people of the city are much younger, they will certainly not be able to play a role in the face of those ferocious beasts.

You must know that the mighty and endless beast tide is terrifying even for cultivators, let alone ordinary people who have never seen blood.

In particular, once the people have reached the city wall, if these people are afraid and flee, it will inevitably affect the new members of the people, and in this way, the gains will outweigh the losses.

"Master, Sect Master Qin has something important to see."

Suddenly, a member of the priest came in to report.

"Qin Chuan? What is he doing when he comes to me at this time, is there something wrong with the city wall? ”

Xu Wanyi was puzzled, and hurriedly asked Qin Chuan to come in.

As soon as Qin Chuan entered the room, he spoke directly and said, "Master Xu, I have a very important matter that I need your help with. ”

Xu Wanyi was stunned for a moment, and then said, "What do you need me to do?" ”

He didn't ask Qin Chuan what the so-called important things were, because he believed that the latter would never come to him for help because of some private matter at this juncture.

"I need Master Xu to gather all the skilled craftsmen in the city, and organize a large number of people for my use, in addition, I also need all the blacksmiths in the city."

After leaving the city walls, he had already gone to the treasure hall in the city to look for raw materials for gunpowder, but there was no storage of saltpeter and sulfur in the treasure hall except for charcoal, which was used to burn the fire.

Later, it occurred to him that these two raw materials were sometimes used in medicine, so he went to a pharmacy, and sure enough, he found both there.

It's just a pity that there are not many pharmacies for these two kinds of materials, but it doesn't matter, there are hundreds of pharmacies in Jinling City, large and small, and they can always collect enough saltpeter and sulfur.

And if he wanted to collect enough raw materials, it was obviously impossible for him to do it alone, so he wanted Xu Wanyi to mobilize the residents of the city to help him.

"Sect Master Qin, I can order the summoning of the skilled craftsmen and blacksmiths you want, but can I ask what you want these people to do with them? Could it be that you want to build some kind of weapon? ”

Xu Wanyi naturally didn't think that Qin Chuan wanted these blacksmiths and other craftsmen to go up to the city wall.

"It's too late to explain so much, Master Xu, you should order the convening first."

As he spoke, Qin Chuan took out the raw materials he had obtained earlier from the system space.

Saltpeter and sulfur have not yet been processed, so Qin Chuan started processing them in this room, holding a stone scoop, putting the two materials into one of them and smashing them.

Seeing that Qin Chuan was busy here, Xu Wanyi hesitated slightly, and then ordered someone to gather the manpower that Qin Chuan needed.

"By the way, I almost forgot the most important thing."

Qin Chuan, who was pounding saltpeter, took a piece of saltpeter and sulfur and handed it to Xu Wanyi, and said, "Master Xu, let people go to the pharmacy in the city to collect these two things, how many are there, all of them have been moved here, I have a lot of use." ”

"It's ...... Medicinal herbs? ”

Xu Wanyi pinched the material in his hand, and with a little force, the sulfur in it was kneaded in half.

"Master Xu, don't be stunned, hurry up and let someone collect it." Qin Chuan shouted anxiously, and then said, "In addition, in addition to these two things, pull me a few more carts of charcoal and sugar." ”

Seeing his anxious look, although Xu Wanyi was puzzled, he still ordered someone to do it.

......

Half a quarter of an hour later.

Outside Xu Wanyi's public house, Qin Chuan was looking at the iron ball in his hand with a satisfied expression.

Just now, he had already configured the gunpowder according to the best ratio of gunpowder, and also asked Xu Wanyi's blacksmith who came in a hurry to build an iron ball and fill it with gunpowder.

"Master Xu, if it is not successful, if it is done, our Jinling City will have another weapon to defend the city, if it is not successful, it will not be ......"

Speaking of this, Qin Chuan stopped, because he felt that he would succeed this time.

Xu Wanyi looked at the iron ball in Qin Chuan's hand with a little suspicion, and said, "Sect Master Qin, is this such a hollow iron ball you are referring to?" ”

He had watched Qin Chuan pound for a while, and then crushed the two 'medicinal herbs' and charcoal that he didn't know about into powder, and then poured the powder into the iron ball.

Just these things, when combined together, become a weapon for defending the city?

I'm afraid it's not!

Such a hollow iron ball, I'm afraid you can't smash it on the heads of those beasts, but you won't be able to smash the latter.

"Hehe, Master Xu, don't believe it yet, whether it will work or not, I'll know in a while."

Seeing that he didn't believe it, Qin Chuan smiled, then took out a fire fold, lit the fuse of his earth-type grenade, and then threw it away, and threw the iron ball into the public room.

Bang!

The iron ball seemed to smash against the chairs in the room with a muffled sound.

"Sect Master Qin, are you sure that the iron ball that you couldn't even smash a chair is the weapon you said about defending the city?"

Xu Wanyi took a few steps forward and looked at the iron ball that was blazing under the chair, with a strange look on his face.

He suddenly had a feeling that he had been deceived by Qin Chuan, because he listened to the other party's words, he mobilized people and collected 'medicinal materials', so he co-authored this for him?

Looking at Xu Wanyi, who was standing at the door, Qin Chuan just smiled and didn't remind the other party to be careful.

After all, he is also a cultivator of the Jindan Realm, so he will not be injured by his earth bomb.

Glancing at the rapidly burning fuse, he took a step back quietly and said, "Master Xu, don't worry, soon you will be able to see the true power of this thing." ”

"Don't ....... you"

Rumble!

Xu Wanyi just wanted to say don't lie to me, but as soon as he highlighted two words, a deafening sound sounded in his ears, and then he felt a terrifying wave of qi rushing towards him.

Moreover, in the midst of this wave of qi, there were four or five sharp pieces of iron, which were also coming towards his head.

Although it was only a piece of iron, he felt a threat from it, as if it could hurt him.

"What the hell is this iron ball?"

He muttered to himself, shocked in his heart, but he didn't dodge, just mobilized a trace of mana to cover it in front of him.

The next moment, pieces of iron shot out and landed on the door in front of him, but with the blessing of mana, his skin was like steel at the moment.

Ding Ding Ding!

After a soft thud, four pieces of iron fell to the ground.

Seeing that he had blocked all the power of this earthen grenade, Qin Chuan stepped forward with a smile, glanced at the messy room, and said, "How is it, Master Xu still thinks that my iron ball is not good?" ”

Xu Wanyi didn't answer him, but squatted down and picked up the piece of iron that had fallen on the ground.

He took a closer look, these pieces of iron were indeed just mortal iron, and couldn't help but say with a happy face: "Okay, good, if we can manufacture these things in large quantities, even if there are more beast tides, we Jinling City will not be afraid!" ”

As he spoke, he grabbed Qin Chuan's shoulders and shook it vigorously, "Sect Master Qin, how did you have such a long brain, and you could use these mortal things to produce such extraordinary weapons early. ”

Qin Chuan shook his head with a smile and said, "Now is not the time to get to the bottom of it, it's better to hurry up and let the skilled craftsmen in the city make this thing, right?" ”

At this time, he didn't have the time to explain the mechanism of the bomb to the other party.

"Okay, next, I'll kill the demon division, including me, and all the manpower will be at your disposal."

Xu Wanyi also knew that the top priority was to seize the time to make this iron ball.

Next, Qin Chuan took over the command of the whole book.

"Blacksmith, make metal balls according to my drawings!"

"Young adults, grind saltpeter, sulfur, and charcoal into powder!"

"Skilled craftsmen, according to my proportions, mix saltpeter, sulfur, charcoal, and sugar, and then fill them into the iron balls that have been made!"

"Besides, everyone is good for me, except for the blacksmith, the other two venues, no sparks are allowed!"

After some instructions, the thousands of people in Wuyang, under the guidance of the demon slaying priests, went to their respective venues, and then began to make gunpowder and iron balls according to Qin Chuan's requirements.

For a while, there was no other sound in the Demon Slayer Division except for the sound of striking iron and the sound of stone grinding and crushing ore.

But Qin Chuan himself did not participate in this, at this time he was sitting in a room, leisurely drinking tea, while Xu Wanyi, the master of the Jinling City Demon Slaying Division, stood aside and personally refilled the tea for him.

"Sect Master Qin, Senior Brother Qin, Qin Xiaoyou, tell me quickly, why does the iron ball you make have such power."

Before, Xu Wanyi could not help but ask, but now, Qin Chuan was no longer needed to make grenades, so he could no longer suppress the curiosity in his heart.

"I said, Master Xu, are you there?"

Looking at Xu Wanyi, who had a flattering face, Qin Chuan couldn't help but be speechless for a while, "Isn't it just a grenade, it's worth you to pour water for a big guy in the Jindan Realm to pour water for my little Zhuji end tea?" ”

Before, he just wanted to drink a cup of tea to quench his thirst, but who knew that as soon as he took a sip, he was dragged directly into this room by the other party, and he took out the best tea leaves, and made tea for him personally.

"Hey, it's just a grenade." Listening to Qin Chuan's casual tone, Xu Wanyi was a little unhappy.

"This is a weapon to defend the city, an artifact to deal with the beast tide, with this thing, those beasts can no longer consume the physical strength of our cultivators."

He was able to become the master of Jinling City, and his vision was naturally not bad, and after seeing the effect of the grenade, he thought clearly about the benefits of this thing.

The reason why the beast tide is terrifying is because those beasts are not afraid of death, and they can consume a lot of the physical strength of cultivators.

With this thing, the cultivator no longer needs to shoot a bow and arrow, he only needs to ignite the iron ball and throw it down the city wall, which can kill a large number of beasts, which is not only efficient but also saves effort.

In this way, after the corpses outside the city were piled up to a sufficient height, those fierce beasts that stepped on the corpses and rushed to the city wall were no longer facing cultivators who had consumed a lot of physical strength, but cultivators who were waiting to sharpen their swords.

"Okay, okay, whatever you say is what."

Qin Chuan was too lazy to entangle these things with him, and after waving his hand, he told the other party some of the knowledge he had learned in chemistry class in his previous life.

But listening to these words that he had never heard before, Xu Wanyi just had a question mark in his head.

He found that he could basically understand every word Qin Chuan said, but he couldn't understand these words when they were combined.

"Sect Master Qin, I don't understand very well, can you explain it to me again?"

"Okay, I'll tell you again......"

"Sect Master Qin, I still haven't understood.......

"One last time......"

"Sect Master Qin......"