Winter goes to spring, since the early autumn of last year, calculating the time, a certain cardamom lady who 'pulls out the mountain' has been in this mountaintop garden outside Luoyang City for nearly half a year, and in this nearly half a year, she has gradually become accustomed to the luxurious life of brocade clothes and jade food and high-rise mansions that are different from before.

During this time, in addition to meditating, practicing, and exercising her natural strength, she also had another task every day, that is: to write down the things she knew, such as pinyin, three-character scriptures, Arabic numerals, ninety-nine plus multiplication tables, and other messy things that she knew, and gave them to her senior sister.

As for who her senior sister was going to give to those books after she took them, or what use they could be, she didn't know for the time being.

After all, it was her senior sister's order, and the other party knew all day long that she was urging her to practice or punish her, and she had long been accustomed to being obedient, so how could she dare to disobey in the slightest?

But those don't matter, anyway, Mei'er never felt that those things taught to her by Brother Li Bai were anything rare, and she gave them to her, she didn't feel distressed at all!

And ah, it's not that the things she handed over to the other party are not completely useless, anyway, I don't know if the things she wrote played a role, recently she has an extra hour of rest time every day, and she doesn't have to practice as hard as before, and the senior sister is a little bit better for her, and the other party also tries to meet her for some of her requirements.

And today, she took advantage of the fact that she didn't have to practice all afternoon, and had enough free time, to secretly fiddle with the big cumbersome copper cylinder that she had specially entrusted someone to get for her, as well as those things such as fire nitrate, sulfur, and charcoal.

She had been squatting in the courtyard for so long that she hadn't noticed when a woman in palace clothes appeared in the small arch of her yard that she absolutely did not want to see.

"I said ......"

"Senior sister, if you have time, you might as well work hard to practice more or read more books! You're not a kid anymore, what are you doing with all this mud here?! ”

Not far away, the little junior sister who watched her first weighed and crushed the saltpeter, sulfur and fine charcoal with a medicinal scale, then mixed them and filled them into the copper pipe, and then filled many stones into it, watching the other party fiddle for a long time and as if it was finished, a certain palace woman with a straight face finally couldn't help but speak.

Those things were originally prepared by her servants to work hard for each other, and originally she wanted to see what useful things the other party wanted to do...... But now, she suddenly felt that the other party was just playing with things, and those things knew that they were useless at a glance, and she shouldn't have been curious before, and she shouldn't have let people get those things.

"Ahh

As soon as she turned her head and saw her terrible senior sister appear in her yard, Mei'er hurriedly stood up as soon as possible.

"Teacher, senior sister?!"

Then she stood by in such a daze, staring at the other party with a straight face and an unkind look in her eyes, so nervous that she couldn't even bother to deal with the dirty charcoal marks on her hands, body, and face.

"Humph!"

"Look at you, what kind of system are you like this?!"

Approaching, the woman in the palace costume first glanced at the one that her junior sister had just spent more than an hour fiddling with, which was about the thickness of a thigh, and there was a hollow part as thick as a child's fist in the middle, while the other end was a solid large brass pipe, and she couldn't help frowning.

In order to make this thing, it really cost a lot of money, because copper is money, and a copper pipe like this weighs more than 500 catties! Counting the loss, you need to spend at least two or three hundred copper coins to smelt!

Therefore, she suddenly regretted it now, and felt that she shouldn't have indulged this junior sister so much.

“……”

Hearing her senior sister's words, Mei'er just lowered her head, pursed her mouth, and was a little submissive, and she didn't even dare to reply.

Because she knew that once she dared to contradict this senior sister, a training would be considered light, and maybe she would be punished to practice, and even the extra rest time would be revoked, so that she would no longer be able to fiddle with the things she was interested in at this time of the afternoon?

“……”

Walking up to Mei'er's side, after first glancing at Mei'er fiercely again, the woman in the palace costume began to look at the thing that had been placed on some kind of pedestal with some disdain, and also leaned over and looked inside towards the black 'tube' mouth.

Hum!

With sharp eyes, she could see at a glance the mixture of saltpeter, sulfur and charcoal that had been mixed and filled into it by Mei'er.

And, of course, there were a few small pebbles in front of the mixture that I didn't know what they were doing.

"This is what you specially asked someone to prepare half a month ago?"

Clang! Clang!

After looking at it for a while, she squatted down and gently tapped it on the outer wall of the thick brass pipe with her index finger, and after making two dull sounds, she really couldn't figure out what it was, so she straightened up again, and asked in that down-looking demeanor and impatient tone:

"Say it!"

"I see you've been fiddling with it for almost two hours, what is this big brass pipe you asked someone to get for you?"

"And what about all the saltpeter, sulfur, and charcoal you stuffed in before?"

Since she didn't understand it by herself, the woman in the palace costume naturally asked the little junior sister standing beside her.

“！！”

"Hui, Hui, Senior Sister......"

"This is my Lee...... One of the weapons that my teacher had taught me, the kind of thing that was carefully crushed and mixed with saltpeter, charcoal, and sulfur in a specific proportion, was called black powder, which was the same thing that made fireworks, but a little better than the proportions of their fireworks? ”

"This copper tube is called a cannon, and the gunpowder is first put in and tamped, and then it can be ignited and fired by stuffing it into the shell."

"It's best to stuff lead bullet in it, but it's okay to use iron bullets or stones, because Meier just wants to try the effect, so I'll stuff the stones first."

When her senior sister asked, Mei'er of course didn't dare to slack off, so she honestly told what she knew.

Anyway, she fiddled with it according to her memories according to the way her brother drew it for her, and she didn't know if it would be successful...... But it doesn't matter if it doesn't work, because it's not her family's money that is spent, it's the fierce senior sister in front of her who asked her to do it, and she definitely won't feel heartache for the other party.

"My Lee...... The teacher also said......"

"If there were no gods and demons in this world, this would be the most powerful weapon in the world...... With one shot, whether it is the city wall or people and animals, they will be smashed to pieces in an instant, which is amazing!! ”

As she spoke, Mei'er excitedly waved her fist, which was also dirty and covered in charcoal dirt.

Just now she was ready, and she had fixed the cannon body, and she was just about to blast a cannon at the courtyard wall to see if this toy called a cannon was fun...... But who thought, at this critical time, her fierce senior sister just ran over to make trouble for her?

"Oh?"

"The most powerful weapon in the world?"

"Hah! It's ridiculous! ”

"That's good! Senior sister, since what you said is so expressive, then senior sister, I have to take a look, you have been fiddling with it for a long time, and you have wasted so much money, the most powerful weapon in the world...... Is it really as powerful as you say? ”

Obviously, the woman in the palace costume didn't believe what Mei'er said.

Although the other party knows a lot of strange things, she thinks she doesn't know any less than the other party about weapons!

Anyway, she wouldn't believe how powerful the thing in front of her could be!

In her mind, it was nothing more than sparks and other foolish things like the 'fireworks' that were set off during the holidays, and those things, as long as they were not stupidly approached, would definitely not be easily burned.

Of course, a Tianzihao master like her, who has advanced internal skills and has been cultivated by her master with top-grade pills since she was a child, will definitely not be burned even if she gets closer.

So......

"Senior sister!"

"Just stand here, you go, move that hole in it and aim it at me, and use it to hit me once?"

"Humph!"

"Senior sister, I want to see what kind of 'most powerful weapon in the world' it is?!"

The woman in palace clothes, who sneered and had a face full of contempt and ridicule, thought about it, walked a few steps away, and stood in front of the wall that Mei'er had just wanted to test at a distance of less than ten meters, and then put aside her cruel words.

"Huh?"

"But ......"

"Senior sister, it is said to be very powerful, if I accidentally hurt you......"

"Humph!"

"No more nonsense, let's start quickly!"

"This ......"

"Huh?!"

"Ahh Be!! ”

There was no way, seeing the stern expression of her senior sister, and thinking about the fact that the other party had repelled a certain 'mountain god' with one palm, and had easily slapped away those terrible spikes flying towards them, Mei'er felt that this kind of artillery might indeed be helpless against her own senior sister, so she had to nod her head and respond.

"Teacher, sister!"

"Senior sister, I'm really on fire!!"

Soon, after a person easily moved the cannon with the pedestal of more than 800 catties, aimed the muzzle of the cannon at his senior sister, and used a powder rope mixed with gunpowder that he had just made to carefully extend from the muzzle to the tamped gunpowder inside, and then took a fire candle from the house that had been lit by her and came out, looking at the senior sister who was still standing in front of the wall and looking at her coldly, Mei'er asked again carefully.

"Humph!"

"If you dare to be verbose, I will punish you for not having breakfast for a month!!"

“！！”

"Teacher, sister! I—I'll order it!! ”

Hearing what her senior sister said, where did Mei'er dare to slack off again?

! (; ﾟoﾟ)o—☄

So, after making sure that the fire rope had been placed and that nothing was missing, she stretched the fire to the one that was exposed at the muzzle, and then hurriedly covered her ears and ran to the side.

This is obviously also taught to her by her brother Li Bai, saying that it is best to cover your ears and stay away from it after ignition, because the sound may be very loud, and it may also explode or something?

Although Mei'er didn't know what 'exploding' meant, she knew which gunpowder was dangerous, and she felt that it would always be okay if she was a little farther away.

Zizizi......

Soon, the rope that had encountered the open flame was naturally sparkling and burning violently, and at the same time it was burning along the muzzle of the cannon at a rapid pace.

"Humph!"

That's it?

Seeing that the fire rope was burning and quickly burned into the dark copper cylinder, the palace woman snorted coldly with some disdain.

✴

Rumble!!

Finally, when the medicine rope burned to the innermost part and ignited the inner tame, as a large amount of sparks and gunpowder smoke erupted violently from the muzzle of the cannon, a loud noise like thunder resounded in this mountaintop annex, and shook Mei'er, who was not far away, felt the ground shake slightly.

And almost instantly, a senior sister who hurriedly laid a blue air shield in front of her to try to defend herself didn't say a word at this time, and was directly blasted to the point that the air shield was shattered and flew out of the wall with a trace of blood.