After explaining Ouyang Ye's affairs, Huang Zhang privately found Kui Lu of the Adventurers' Association.

"Did you collect what I wanted?"

Kui Lu nodded and moved a box of things out for Huang Zhang.

"Your Highness, everything you want is here!"

Long before, Huang Zhang asked Kui Lu to collect some necessary materials for him, saltpeter, sulfur, charcoal, cotton, etc., although Kui Lu didn't know what Huang Zhang wanted these materials for, it seemed that these things were useless!

If you have to talk about the use, it is this saltpeter, which may be used to make ice, charcoal can be used for heating, and sulfur can be used to repel insects.

But these things don't need His Highness to buy them personally, right? The point is that the amount is still so large!

Huang Zhang saw Kui Lu put three things in a box, and the whole person exploded instantly, and he immediately opened the box carefully.

Kui Lu didn't expect Huang Zhang to make this move, didn't he just put things in the box, as for such a big reaction?

When Huang Zhang carefully opened the box and found that the things were being packed one by one, he was relieved!

If something happens to this mix, I'm afraid this adventurer's guild won't be able to ask for it!

"It's fine! OK! ”

Under Kui Lu's shocked face, Huang Zhang carefully took out the contents of the box one by one!

"Don't tell anyone about this today!" Huang Zhang greeted.

Kui Lu nodded stupidly!

She just wants to talk about this, and no one will ask!

In the end, in Kui Lu's shocked eyes, Huang Zhang quietly left!

Huang Zhang didn't bring this box back to the Prince's Courtyard, he didn't dare to experiment openly in that kind of place.

Although Huang Zhang knew the ingredients of black powder, he knew that he had to adjust the dosage slowly, which was also a delicate job.

Outside Kyoto, Huang Zhang had already asked Luo Yingying to buy a courtyard in the suburbs in advance.

In the next few days, Huang Zhang concentrated on the courtyard and began to adjust the dose of black powder.

Black powder is a powerful thing, and if you don't do it well, it's easy to get into trouble.

Huang Zhang didn't go back for a long time, which naturally caused Hu Yi'er to worry, although Huang Zhang told her where she went, but she didn't come back for three days to take a look, Hu Yi'er would inevitably think more!

Following the location pointed by Luo Yingying, Hu Yier successfully found the courtyard located on the outskirts of Kyoto!

From the outside, this courtyard is indeed relatively cold and desolate, and Hu Yier doesn't know why Huang Zhang is doing here with nothing to do!

When she pushed open the courtyard door and took a look, the scene in front of her completely frightened Hu Yi'er!

In the past three days, the originally good courtyard has been turned beyond recognition by Huang Zhang, if Luo Yingying is here, I am afraid that he will be shocked.

As a party, Huang Zhang is naturally not very good, the power brought by the black powder makes him almost not have a good clothes, if he doesn't deliberately control the power, I'm afraid he will lie on the ground!

One can imagine how shocked Hu Yier must have been when she saw this scene!

Her first reaction was that Huang Zhang had fought with others, otherwise she would never have appeared in this situation!

As soon as she thought of this, Hu Yier searched the yard like crazy!

But the more she searched everywhere, the more worried she became!

"Hahaha, I succeeded, I succeeded!"

Just when Hu Yi'er was about to collapse, Huang Zhang's voice suddenly came out of the innermost room!

Hearing this familiar voice, Hu Yier didn't have time to think about it, and immediately found it!

As soon as he entered, he saw a man in the shape of a beggar laughing maniacally!

"Childe!"

Although the current Huang Zhang is the same as three days ago, Hu Yier still recognizes it at a glance!

"Yi'er?"

Hearing Hu Yier's shout, Huang Zhang also found her for the first time.

Seeing this, Hu Yi'er immediately ran over and asked with a crying face: "Childe, what has happened to you in the past few days?" How so? Who did it to you? ”

Huang Zhang didn't care about this at all, he just held Hu Yi'er's hand and said happily: "Yi'er, I succeeded, I finally succeeded!" ”

"Success? What has been successful? ”

I saw Huang Zhang suddenly take out a small cloth bag from the table.

"Is there a fire fold?"

Hu Yi'er was stunned and took out the fire fold and gave it to him.

I saw Huang Zhang ignite the cotton thread at one end of the cloth bag with a fire fold, and then I saw Huang Zhang throw the cloth bag!

"Boom!"

With a loud bang, the already dilapidated gate immediately shattered into a mess of sawdust! There was a large cloud of white smoke in front of the entire door.

“……”

Hearing the sound just now, Hu Yi'er remembered something that Huang Zhang had told her.

"Childe, is this black powder?"

Huang Zhang nodded!

"Strictly speaking, this is my improved version of black powder, and I have compressed the dose without affecting the power."

Seeing the power of the explosion just now, Hu Yi'er instantly understood what was going on in this courtyard!

Thinking of this, Hu Yi'er's face was overjoyed.

"Childe, so you've mastered that black powder thoroughly?"

In this regard, Huang Zhang just laughed!

Thoroughly mastered? This is a bit insulting to him, it should be said that it turns decay into magic!

It is not difficult to mix black powder after knowing the formula, and the outermost house in this courtyard was blown up by him with black powder at the beginning, but what he wants to do is bullets, and he can't make smokeless powder made with modern technology before the crossing, but the basic black powder bullets are definitely no problem!

If you want to compress it into a small bullet, there is a problem with the ratio between the main three!

Fortunately, in three days, Huang Zhang almost never sleeped, and finally mixed the black powder to the most suitable amount, and he retained a hundred million points of power, so that people would know that it was gunpowder!

"But Childe, it's too dangerous to carry this thing with you!" Hu Yier was worried!

"Don't worry, Childe, I have my own magic use!"

With gunpowder, the rest is much simpler!

Abandoning the dilapidated courtyard that had been destroyed by gunpowder, Huang Zhang and Hu Yi'er returned to the Imperial Prince's Courtyard in Kyoto City!

As soon as he came back, Ouyang Ye couldn't wait to show Huang Zhang the gunparts that had been polished.

Either how to say that they are the heirs of a family of craftsmen, Ouyang Ye almost copied things according to the drawings!

These little things made of 100 steels are definitely no problem in terms of strength!

Seeing these small parts at a glance, Huang Zhang was very satisfied and praised Ouyang Ye!

"It is worthy of a family of craftsmen, this craftsmanship, tsk, great!"

Hearing Huang Zhang's praise, Ouyang Ye was also a little proud! He may not be able to say anything else, but when it comes to casting iron, he has never been vain!

"Your Highness......

Huang Zhang nodded, and said to Chen Lin on the side: "Go, let Yi'er take a hundred taels of silver to the master!" ”

"One...... A hundred taels? ”

Ouyang Ye didn't expect Huang Zhang to give him so much silver! He originally thought that Huang Zhang would be thankful that he would let him go after he finished, but he didn't expect it......

Thinking of this, Ouyang Ye immediately knelt on the ground!

"Thank you, Great Prince!"

But at this moment, Huang Zhang's attention is not on him at all, he only has these firearms in his eyes, and there are bullets made of bronze on the side!