He was not interested in the success of the world, but the secret recipe must not be courageous. Li Su did not even dare to ask for money this time, but he knew how sensitive the gunpowder was. Since he was found out and the court saw it, he believed that this thing would be no longer possible to him. Withdrawing money would make the court a little bit unclear. If it made Li Shimin angry and simply wiped out himself, it would be so unfair. ≤

Niu Jinda praised the small pottery jar, which obviously suited his taste.

"Good boy, why are you so awake?" Niu Jinda patted his shoulder happily. Li Su was prepared and quickly flashed, but didn't pat him.

After laughing a few times, Li Su explained: "Master General, if this thing reaches the maximum damage on the battlefield, you must find a few guys who are not afraid of death. After igniteing the fire, you can pause for a breath. When the lead is about to burn out, throw it out. Throw it higher. It is best to explode above the enemy. The broken iron pieces inside are more domineering than gunpowder, and one death is one piece."

After all, Niu Jinda was a general, and he could understand the killing thing at all. After thinking about it for a while, he immediately realized that he looked more and more shocked.

"How much can this thing be made in a day?" Niu Jinda asked excitedly.

"Materials are the key. If there is enough material pipe, you need as much as you want. The process is very simple. Ask more people to help. The manufacturing of two or three days will make Songzhou break the city."

Li Su didn't say a big deal. If the grenade was the original ignition technology of the present day, it would indeed be as much as possible. The principle was like making firecrackers. In the past, there were firecrackers everywhere in the countryside. All the production of a day was lit, which was enough to make several mushroom clouds rise in Songzhou.

As for the firing of grenades and the lead delay device in later generations... Li Su didn't know anything at all, so he just knew how to do firecrackers.

"Okay! I will ask dozens of Lingxing people to help you. If you teach them, I will immediately ask Your Majesty to promote them." Niu Jinda focused heavily.

Li Su understood the meaning of promotion, and if nothing unexpected happened, these dozens of people are afraid that it will be difficult to see the light of day in the future. To put it nicely, they are core jobs of highly confidential units, but not nicely. Well, they are considered labor reform criminals with official positions, and they are life imprisonment. However, the rewards given to their families and children must be very generous. Within three generations, they may be able to be surrounded by the powerful and powerful circle.

One is willing to fight and the other is willing to suffer, but it is hard to tell whether it is good or bad. If Wang Zhuang changes, he may agree happily. Using his own freedom to exchange for the future of the two brothers in the family is a very cost-effective transaction.

If it were Li Su himself, he would have made a limited edition collector's version of grenade to blow up the black workshop.

However, Li Su did not intend to recommend Wang Bao. He didn't know how much Li Shimin would pay attention to the secret recipe of gunpowder. If he attached great importance to it, Wang Bao would come into contact with it. It would be possible that the light of day will be gone in this life.

"There are a few things you want, not easy to find, but it doesn't matter. I have many people under my command. I simply truce the battle these days. Half of the cavalry went out to collect these things. I will definitely gain a lot in a few days..." Niu Jinda narrowed his eyes and looked at the towering Songzhou city wall in the distance. His face became extremely relaxed after days of hazy days.

"Make a batch first, and then attack the city in a few days. Try how powerful this thing is. If Songzhou can be recovered, you should be the first to be a success."

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Li Su felt that she had been on the road to promotion and promotion without knowing it, and she was getting faster and faster, so she couldn't stop.

After all, I was reluctant, but I didn't regret it. Just like treating smallpox in the past, this time it was for the Wang brothers. It was a bit hypocritical to say that greatness was, but he treated them as friends, and he happened to be able to solve the dilemma of these two friends. It was that simple.

Sometimes I can’t help but envy the Wang brothers. How many wooden fish were broken in my previous life to make them know such a perfect friend. On the contrary, I must have done a lot of unethical things in my previous life, and I have worked so hard in this life.

Niu Jinda was very efficient in his work. He soon collected all the materials needed and found dozens of soldiers from the army, including a small official who accompanied the army.

Everyone looked tragic and honorable. Looking at Li Su's expression, it seemed as if he was paying attention to a monument of a martyr. This look made Li Su very upset.

Niu Jinda was kind and told them about the future treatment when he was picking people. They obviously made a careful choice before they could stand in front of Li Su.

A very simple black workshop was built ten feet away from the central army commander's tent. Niu Jinda mobilized his personal guards to surround the workshop. Those who dared to come forward to watch were not only driven away, but also had to eat military sticks.

Li Su explained to everyone in detail how to make black gunpowder, and there was no need to tell them the principle, because Li Su himself didn't know some principles, and it was nothing more than copying them.

It's not something too complicated, you can understand it as soon as you explain it. Under Li Su's guidance, everyone made the first finished product. Li Su was too lazy to care about the subsequent things, and pretended to shout a few slogans, such as devoting life to the imperialism of the Tang Dynasty, etc., and then quickly withdrew from the black workshop and ran far away.

A group of terrorists inside made explosives, which was equivalent to a gunpowder barrel that could explode at any time. In case of any accident, for example, a guy with an IQ that obviously needs to recharge thought the light was too dark, so he lit a torch to make a can or something...

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Dozens of people took action at the same time, and the efficiency was very fast. In two days, more than 2,000 small jars were created. They looked scary and were very happy. Niu Jinda warmly invited Li Su to watch the results together. Li Su flatly refused and was beaten to death and did not get close.

He was more than one invited by Niu Jinda. He heard the troublesome tent in the morning. It turned out that it was Hou Junji and Liu Lan who came.

Li Su pretended to be deaf and ignored him and hid in the tent to sleep. Not long after, a bolt from the blue outside the tent frightened Li Su, who was defenseless and bounced it a few times. Li Su turned over and sat up and sighed heavily.

If you can't sleep, go out and participate in the grand event.

Outside the handsome tent, Niu Jinda, who had just tried the effect, laughed happily with the two generals in armor, and even his posture was the same when he smiled. He laughed to the sky, as if his face was not facing the sky, he seemed unrestrained. In fact, it was easy to get out of breath when he smiled like this...

"You are Li Su?" Hou Junji smiled and looked at him seriously.

"Return to the chief executive. The lower official is exactly."

"As Your Majesty said, it is indeed my young hero in the Tang Dynasty. This thing is domineering and extraordinary. With its help, Songzhou will definitely win!" Hou Junji laughed loudly, his spirit was very high. He was the chief general of the Midao marching army. Although the troops were divided into three groups this time, he had control over the three armies. That's right, if there was a brave man in the enemy army who could kill the general's head in a million troops, Hou Junji would be killed.

Of course, after regaining Songzhou, Hou Junji also made the greatest contribution, so now he smiled so exaggeratedly.

"We have tried everything. As Lao Niu said, he was very domineering. We were just saying that if we recover Songzhou from tomorrow, the three of us will jointly ask for the first prize for you! Hahahahaha..." He laughed to the sky again.

Liu Lan is quite taciturn and smiled gently, "Fortunately, Your Majesty sent you to the army this time, otherwise we would probably suffer a great loss in the Battle of Songzhou."

Niu Jinda smiled loudly, reached out and hooked Li Su to him: "Every child, don't spoil him, you will be requested for me. I will just report it alone."

Hou Junji pointed at him and scolded, "The old guy will win people's hearts. He will pull him to your side so quickly. Don't be too happy too early. Lao Cheng's tricks are more vicious than you and me, so he has treated this little kid as a treasure."

Niu Jinda grinned: "Your Majesty put this little kid under Niu's tent, so it is my own. The little kid has made contributions, and Niu will make contributions for him, so you have to do much."

Li Su watched the three of them quarreled quietly. Niu Jinda's attitude was very firm, and he could only play the merits alone. Hou Junji and Liu Lan couldn't get in.

After watching with interest for a while, Li Su gradually tasted the taste, and a chuckled on the corner of her mouth.

A very interesting scene, when a few martial artists fight, they seem to be no worse than civil servants...

In the end, Niu Jinda became impatient and shouted with anger: "I have written the memorial, come here! Take my memorial to Chang'an and present it to Your Majesty, and bring a few of them to you."

The rogue tricks were played out, Hou Junji and Liu Lan were so angry that their eyes widened, but they had no choice but to curse him as if they were real or smirking, and then gave up.

After seeing off Hou Junji and Liu Lan, Niu Jinda beat the drums again and gathered the generals to issue military orders, and make meals tomorrow and attack the city at three o'clock.

After the generals dispersed, Li Su was still in the coach's tent. Niu Jinda narrowed his eyes and looked at him: "There is something else to do with the little kid?"

Li Su made up his clothes and suddenly bowed to Niu Jinda: "Boy thanks Uncle Niu for his love."

Niu Jinda was stunned for a moment, his expression became strange: "Just... did you understand?"

Li Su smiled and said, "Boy understands."

"After all, he is a young hero who has been praised by His Majesty. He is indeed extraordinary." Niu Jinda was a little surprised, and then waved his hand lazily: "It's good if you understand. You are young, don't mix with this kind of thing."

"Yes, the boy didn't know anything."

The question was so stupid that Li Su's answer was also stupid. Everyone pretended to be confused because they understood.

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At 3 o'clock the next day, the Tang army attacked the city for the third time.

There was a strange army in the front army array. One hundred people held horizontal swords in their hands and two soft skins hung around their waists, with bulging skins. These hundred people stood behind the crossbow arrow camp, and each of them mixed in the siege sequence twenty steps apart.

The war drums roared, and the crossbow arrows and stone throwing cars appeared first. The rain of arrows and huge rocks opened the prelude to the war. Then the low horn horn sounded. As the sound of killing sounds of killing, the Tang army soldiers carried the ladder toward the city wall.

The tactics of siege were the same as the previous two times, and seemed to be nothing new. The Tubo generals on the city were initially nervous for a while, but later they gradually felt relieved. They were still the old routine of defending the city before, and both sides of the offense and defense were working hard with leisure.

Everything is happening again, and no one noticed that there is a variable that turns the situation around today's siege team.

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Chapter completed!