The next morning, Li Yuan got up early in the morning, and the first thing he did was to take people to the northeast of the city where the pills were refining, to take a good look at how the gunpowder refining was going under the auspices of Hu Gui.

This is a residential area in the northeast corner of Langzhou, which is not a prosperous place, and it is precisely because of the remoteness and tranquility that Hu Gui chose to set up the Dan furnace for refining gunpowder here, in order to minimize the nuisance to the people.

But even so, the smoke and pungent smell produced during the refining process still disturbed the few dozen families in this area. So Hu Gui decided to ask Xu Kuangheng to empty this area, arrange dozens of families to a densely populated place in the south of the city, and erect a tall fence to circle all the areas within a radius of Xu into a forbidden area, making this area a special area for refining gunpowder.

Li Yuan led the crowd to the northeast of the city, and he could smell some pungent smells in the air from a long distance, and when he reached the vicinity of the wall, the smell became even stronger.

Now it is understood, it makes sense to spend money to move the people here, the people live under such a smell all day long, who can stand it? Clearly inappropriate. Of course, it costs a lot of money, but it obviously has to be spent.

Entering the gate of the wall, Hu Gui, who had been staying here for a long time to supervise the progress, heard the news and hurriedly came out to greet him. Hu Gui's whole person was very decadent, his hair was messy, his eyes were bloodshot, and his robe was full of dirt. There was a strange smell on the whole person, and there was still a state official who was in charge of the armament, obviously under a lot of pressure.

"Oh, Metropolitan Governor, you're here! The smell here is pungent and unpleasant, how can the Governor come in person? You can send someone to call the subordinate to interrogate you." Hu Gui hurriedly bowed and arched his hand.

Li Yuan got off the horse with a smile, stepped forward and patted Hu Gui's shoulder and said, "Why bother you to run a trip, the governor of Pontus is not without long legs. Why do you look like this? Don't clean up yourself, you're the weapons supervisor of my Wuping Town, how can you act like a servant."

Hu Gui bowed and said, "Last night, a furnace was refined overnight, and the lower officials stared at it all night, and they didn't close their eyes."

Li Yuan smiled and said, "Refining is the business of those warlocks, what are you doing with you?"

Hu Gui said apologetically: "The lower officials are incompetent, they have spent a lot of money and property on the governor, and they have not achieved any results in the whole month, which is really embarrassing. If we don't step up our supervision, we will have to let down the governor. 「

Li Yuan laughed and said, "Did you hear something other people talking about?"

Hu Gui hurriedly waved his hand and said, "Don't dare, don't dare. It is also appropriate to discuss it, and the lower officials did spend a lot of money on the governor, but there was no result. This money has indeed been unjustly spent, and it has failed the expectations of the Grand Governor!"

Li Yuan sighed and said, "Don't think so, this matter is what Bendu ordered you to do, just do your best, don't have a psychological burden."

Hu Gui's eyes were red, and he said in a deep voice, "Thank you Dadu, thank you Dadu."

Li Yuan smiled and said, "Let's go and take a look, the governor of Pontus only came once when the site was originally selected, and I think of it as irresponsible."

Hu Gui responded, and led Li Yuan and his party towards the depths of the courtyard, walking through a road paved with gravel, with a row of houses in front of them, and after the side of the houses, there was a row of trees in front of them. There was a one-man high fence under the trees, and on the other side of the wall, there was smoke of yellow, white, and black floating in the air for a long time, and at the same time, the smell in the nose was even stronger.

"The Governor of the Metropolitan invites the Dan Furnace to be in the courtyard." Hu Gui stretched out his hand to guide.

Li Yuan nodded, stepped into the vertical arch, passed through a densely planted tree, and a large open space suddenly appeared in front of him. In the open space, two rows of courtyards from east to west are neatly arranged. In the courtyard of each courtyard, a tall tower with smoke can be seen, which is a height of a few feet and is in the shape of a hexagonal shape.

"Governor, these are the Dan furnace and the Dan room, there are twenty in four rows, each furnace is in charge of a real person, and behind it is the diya and medicine room where they live." Hu Guidao.

Li Yuan walked quickly into a courtyard, and when he entered the courtyard gate, a heat wave hit. But seeing around the Dan furnace, several Taoist children were sweating like rain, two of them were crackling firewood, one was adding firewood, and one was fanning, and they were very busy. The hexagonal Dan furnace has six

Each door was spewing red flames outward, and the heat around it was so hot that I almost suffocated my breath.

Hu Gui stretched out his hand to summon a Taoist boy who was squirming wood and asked, "Where is Liu Zhenren?"

The Dao Tong pointed to the retreat ten paces away and said, "Hu Jiancheng, the master is resting in the retreat, do you want to call him?"

Li Yuan waved his hand and said, "Let's go see this Liu Zhenren and see what they are doing."

So everyone escaped from the scorching of the Dan furnace and went to the two houses in the back, and when they came to the door, a Taoist boy was washing clothes under the porch, and when he saw a group of people coming, he hurriedly got up and looked. Hu Gui said: "Go and tell Liu Zhenren that the Metropolitan Governor will come in person and let him come out to greet him."

Dao Tong hurriedly lifted the curtain and entered the house, and after a while, an old man with gray hair hurriedly came out, and hurriedly saluted when he saw Li Yuan and Hu Gui.

"This is Liu Hai Toad Liu Zhenren." Hu Gui introduced to Li Yuan.

Li Yuan nodded and said, "I know, they have already met when they came to Langzhou, Liu Zhenren, it's polite."

"The Governor is polite, please come into the house and sit down, boy, go and pour tea." Liu Zhenren.

Everyone entered the house, but saw that the house was empty and there was nothing, and there were dozens of open clay pots on a long table in the corner of the wall, and there were all kinds of powders in the clay pots, which emitted a pungent smell mixed together, so that Li Yuan couldn't help coughing a few times.

"I'm sorry Governor, but the old man was grinding and mixing the powder, and he didn't have time to put it away. Boy, take the lid and cover all the powder."

Li Yuan waved his hand and said, "No need, Pontus is here to take a look at these things."

After saying that, Li Yuan stepped closer, frowned and looked at the things in these clay pots, and he didn't know anything. Liu Zhenren pointed out on the side: "This is realgar, this is earth frost, this is purple nitrate, this is nirvana, this is arsenic......

Li Yuan frowned, there were many things he didn't know what the names were, and it sounded very strange.

But this is also natural, Li Yuan was born in the liberal arts in his previous life, even if gunpowder is known to everyone in later generations, he is lackluster in the knowledge of gunpowder. What kind of yellow powder black powder explosives and other things, at first glance the name seems familiar, but after all, the precise ratio of drugs and the specific method of production are unknown.

Therefore, Li Yuan, who had crossed over here, could only rely on the Taoist priest's recipe for refining gunpowder. If it weren't for the fact that he had exhausted his hole cards in the Yiyang Battle before, Li Yuan would not even have remembered refining gunpowder.

However, Li Yuan still knows the basic knowledge of gunpowder, which is nothing more than a mixture of saltpeter, sulfur, and charcoal in proportion. But how to mix, how to proportion, how to make it explode within a controllable range, Li Yuan was confused.

But it was precisely because of this concept that Li Yuan felt that this matter was not difficult from the beginning, and these Taoist priests who pursued alchemy and immortality day and night would definitely have a way to refine the gunpowder they needed. However, what I didn't expect was that this matter spent so much money in January, but there was still no result.

Li Yuan was also helpless, he expected that this was the limitation of the times of science and technology and the limitations of various issues such as raw materials, and he could not change it. Li Yuan didn't know more about this knowledge than these alchemists.

"Liu Zhenren, I don't know if there is any progress in the refining of the Fuhuo Fang. Pontus said bluntly, he thought it would not be difficult, but he didn't expect the progress to be a little unexpected." Li Yuan said in a deep voice.

Liu Haichan said with a look of guilt on his face: "The Metropolitan Governor, the old man is embarrassed. If we don't do our best, it's really far from what the Metropolitan Governor wants. The fire side you need can be ignited quickly, and it must burst quickly, and the old man and the others have refined more than 400 pairs of recipes in the past month, but none of them have met the requirements of the Grand Duke. The old decay is also introspecting what is causing it."

Li Yuan said: "Among the more than 400 recipes, none of them have any effect?"

Liu Hai Toad hesitated and said, "It's not for nothing...... But the old man knew that it was far from what the Metropolitan Governor had requested. There are two recipes that can barely be regarded as some progress, but the effect is very poor, and the Metropolitan Governor will definitely not be satisfied."

Li Yuan hurriedly said, "It's okay, take it and show it to the Governor of Pontus."

Liu Haichan nodded in agreement, turned around and trembled

Wei took out two paper bags from the drawer of the corner cabinet and held them in his hands. Li Yuan opened the paper bag in turn, looked at the granular black and yellow powder inside, and sniffed it, it seemed to smell some gunpowder.

"Try it, and the Governor will know."

As he spoke, Liu Hai Toad poured a pinch of medicinal powder into the two bowls, picked up a fire fold and blew it on, and approached the medicinal powder in one of the bowls. The fire was red, but it took a long time for the powder to be burned, but it was like a burning rat droppings, and a pinch of the powder burned for dozens of breaths, emitting a pungent yellow and white smoke, and it was difficult to even see the firelight......

Obviously, it is not the kind of rapid ignition that Li Yuan imagined at all, achieving the effect of instant bursting.

The powder in the other bowl was also not very effective, although it burned faster, but the light of the fire was like burning an oil lamp, and it actually came out with a yellow fire. Naturally, this is not the kind of effect that explodes violently.

Li Yuan was secretly bitter in his heart, he spent so much money, he only got this kind of thing to make tricks, and it was too pungent to use it to make a fire, this kind of gunpowder can't be called gunpowder at all, it's better to ignite it directly with oil-rich pine wood, what use can it be?

Seeing Li Yuan's ugly face, everyone also lowered their heads silently. Liu Haichan waved his hand and ordered Dao Tong to clean up, and then stood aside in a daze.

Li Yuan pondered, "According to Liu Zhenren, what is the problem? The Governor of Pondu remembers reading a book in which a Taoist priest who made an alchemy had refined a medicine that burned quickly, and even burned down the house and the furnace, but the record was not well known, and it seems that it has not been handed down."