Looking at the room of materials, Xiao Mo scratched his head and squatted at the door, really not knowing where to start first.

It's one thing to learn the principles and memorize them, it's another thing to actually do it yourself.

Xiao Mo couldn't even understand what was going on with the most important tool scale, the scales in ancient times were not electronic display screens, and Xiao Mo didn't know what these scales of different lengths represented.

In the end, he called Old Man Han, and it took some time for Old Man Han to figure out the principle of this scale under the condition that Old Man Han was extremely contemptuous.

Fortunately, Xiao Mo is a high-achieving student, and his IQ is quite acceptable, otherwise it would take a lot of time just to learn to read scales, and he would really be killed by his head.

Old man Han is definitely a strange old man, Xiao Mo clearly said that it was okay, he could watch and study the black powder from the sidelines.

But Old Man Han wants to say that the secret technique of the Immortal Palace cannot be obtained unless he is a person of great luck, if he wants to watch it, it will be a long life.

Xiao Mo listened to it with serious contempt and contempt, this old man is too shameless, at such a big age, even if he immediately hangs up in this year, he is considered an absolute longevity, and he is still worried that he will lose his life.

However, when it comes to researching black powder, Xiao Mo really has a headache, and his profession is completely inappropriate. If Xiao Mo was asked to drill into a large tomb and study the antiques that accompanied the burial, Xiao Mo would definitely be very interested.

In the end, Xiao Mo spent a whole morning, obviously according to the quality ratio in his memory, but it was just a little bit worse.

Although Xiao Mo knew that the black powder would make a very good explosive after it was granulated, it was quite powerful. But at this time, Xiao Mo hadn't even made the most basic black powder, let alone granularization.

In the end, Xiao Mo exhausted the only chemical knowledge in his mind, and found that it may be that the oxidation of the gunpowder he made is not good, and it may be better if he adds some magnesium powder, aluminum silver powder or realgar powder to it.

Magnesium powder or something must not be at this time, put it in the future to go forward two hundred years, aluminum is still a precious metal, more valuable than gold, Napoleon still took an aluminum bowl to show off. Don't think about these Xiao Mo.

However, there is still such a thing as realgar at this time, Xiao Mo simply clapped his hands and walked out of the small courtyard, called Erniu and gave an order, and then leisurely prepared to eat.

In the afternoon, Xiao Mo's face was full of black charcoal, and he finally made a good-looking sample.

Xiao Mo took a small sample and put it in the middle of the courtyard, and shouted to Old Man Han, "I said old man, it's okay." See, just shoot a rocket at this thing on the ground. ”

Old man Han looked at Xiao Mohaha and smiled: "Hahaha, you stinky boy, why did you become darker than Kunlun Nu in just such a short time?" ”

Xiao Mo pouted and said, "I said that you old man can't do anything?" ”

Old man Han also said with contempt: "What are you afraid of this kid?" Knock on your breath, just a little thing, and let the old man open a bow of 400 stones? ”

Xiao Mo said speechlessly: "It's you, the old man, who is holding a broken bow and showing it blindly, and he didn't let you use such a hard bow, can you shoot arrows?" It's a shame! ”

Old man Han said with a smile: "Old man, I will only open a hard bow in my life, so I can just give you such a thing, old man." ”

As he spoke, he took the torch and walked towards the middle of the courtyard, Xiao Mo immediately snickered and ran away.

Sure enough, I only heard a pop, and a bright light lit up in the small courtyard, followed by scattered smoke covering Old Man Han.

When the smoke cleared, Xiao Mo couldn't help laughing when he saw Old Man Han standing there in a daze, and even tears came down.

At this time, the old man Han had burnt marks everywhere on his gray beard and hair, and he was a little curly and exploded. His face was also covered in black ash.

Xiao Mo couldn't help but hold his stomach and laughed: "Ahahaha, I'm laughing to death, it's so funny." Let you show off your old man, now you know it's amazing! Oh no, my stomach hurts. ”

Old man Han said with some palpitations: "This Immortal Palace Secret Technique is really not to be underestimated, I really didn't expect that such an inconspicuous thing would be so powerful." Almost ended up with the old man me. It's horrible! ”

Xiao Mo said in his heart, you are dying by yourself, of course there is no good fruit to eat.

However, since the experiment was successful, Xiao Mo naturally would not stay in the small courtyard anymore.

Because of the amount of gunpowder needed, Xiao Mo was going to call all the boys in the restaurant to help next. But for the sake of secrecy, Xiao Mo was ready to divide the labor again, and the final mixing and adding realgar procedures were completed by Xiao Mo, Er Niu and Old Man Han.

Although Xiao Mo knew that the possibility of these children leaking their secrets was close to zero, and it was impossible for them to betray themselves. But it's always right to keep everything in hand.

Wang Ziyao also sent a large number of materials when it was approaching the evening. This time, it was all according to the quality ratio that Xiao Mo needed.

The following night and the whole day afterward, the small courtyard was busy making gunpowder.

The amount of gunpowder required for artificial rain was too large, although Xiao Mo was only testing it in a small area in Luodu. However, the amount of gunpowder required is not something that can be completed in a while and a half under extremely poor process conditions.

As for the large-scale artificial rainfall in the territory of the Great Sui at that time, that is the matter of the imperial court. Anyway, Xiao Mo didn't expect to keep the gunpowder formula a secret, sooner or later it would be known by the imperial court, but such a killing weapon, Xiao Mo still hoped that it would appear as late as possible. Even if the secret recipe was given to the imperial court at that time, Xiao Mo hoped that this gunpowder formula would stay in Huaxia instead of spreading it.

Early in the morning of the third day, when Xiao Mo was still dazed, Zi Ling rushed into Xiao Mo's inner room with an anxious face.

I saw Zi Ling say anxiously: "Young Master! Master! Oh no, something big is wrong! ”

Xiao Mo was wearing big pants, his upper body was bare, he rubbed his eyes and said in a daze: "What's the matter?" In such a hurry early in the morning, what's wrong? ”

When Zi Ling saw Xiao Mo's shirtless appearance, his face flushed and said, "Young Master, something really happened, there are a lot of soldiers outside, surrounded by the door of the restaurant." ”

Xiao Mo was also puzzled when he heard this: "Soldiers? What are the soldiers doing here? Young master, I didn't do anything bad about bullying men and women, even if I did, I wouldn't be able to commit a soldier, right? It should be the Wuhou of Luodu. ”

Zi Ling lowered his head at this time and didn't dare to look at Xiao Mo, but he was very anxious, and couldn't help but say eagerly: "Young Master, you better hurry up and get dressed and take a look, there are really a lot of soldiers." And they all held armor and weapons. ”

The scene described by Zi Ling, if it had been placed a few days ago, Xiao Mo estimated that he would still be a little nervous and a little overwhelmed, but since Xiao Mo knew the identity of Old Man Han, Xiao Mo didn't pay attention to this matter at all. There is such a big man in the family, and he is afraid of any soldiers, even if the emperor Lao Tzu comes, he doesn't need Xiao Mo to play in person.

Xiao Mo said with an indifferent look: "Zi Ling, don't be in such a hurry, go and fetch a basin of water for the young master, and the young master will wash up and then go and see what is going on." ”

Zi Ling said a little anxiously: "But, young master, there are really a lot of soldiers outside the door of the restaurant, which is very terrifying." ”

Xiao Mo said disapprovingly: "Young master, I am sitting upright, not afraid of that soldier, by the way, why haven't you seen Xiaobai today?" Didn't that guy rush in early in the morning and wash my face with his tongue? ”

Zi Ling replied with some excitement: "Young master, Xiaobai is confronting the soldiers at the door of the restaurant, fierce!" I don't know where that little thing got the guts. ”

Xiao Mo laughed when he heard this: "Sure enough, it is worthy of being raised by me, this courage is different." ”

It's very easy for a man to wash up, and it's all over for a few minutes.

Then Xiao Mo wore a blue robe and walked to the door of the restaurant.

Before he arrived at the place, Xiao Mo, who was far away, saw that Xiaoya seemed to be talking to a soldier at the door, and next to him was a little white dog standing grinning at the door, but that image, no matter how you look at it, is only cute and not fierce.

When Xiao Mo approached the door, the situation outside also startled Xiao Mo.

At the door of the restaurant, there were about thirty or so soldiers at this time, but these thirty or so soldiers were completely different from the soldiers Xiao Mo saw in the Luodu Mansion the day before.

It feels like the difference between ordinary police officers and special forces that later generations have seen.

The thirty or so soldiers were covered in dust, and there was even some dew in their hair. But these people are all very full of spirit, and their bodies are very tall, and they are even more burly than Old Man Han. These people, each dressed in iron armor, holding a wide and long black knife, more than thirty people in the shape of a character around a carriage, facing the restaurant.

The armor of these soldiers was jet black, and it was obviously the old armor that had been worn for many years, and some of the knife marks on it were very obvious, which was obviously the outer armor worn when they went to battle.

The black broadsword held by these soldiers is very strange, the broadsword is both wide and long, and it is very heavy, the key is that these broadswords are actually not sharp, Xiao Mo looks at the past and feels very much like the ink knife in the records of later generations.

Before Xiao Mo approached these soldiers, he felt a sharp aura and a trace of evil aura, and it was obvious that each of these soldiers had a lot of lives on their bodies.