"Your Majesty, the queen and the harem family have all been escorted out of the city, and they are expected to arrive tonight." Li Guotai sent Queen Wang away, and immediately ran to the study to report to Zhu Youlang.

"That's good, I'll go to the city walls and take a look at the defense." Zhu Youlang said, got up and walked out of the palace, and went directly to the city wall.

The ancient city wall of Guilin, built with large blue bricks, is relatively firm, 68 feet high, 24 feet thick, and has fortifications, so that people can run back and forth on the city wall.

Zhu Youlang patrolled the city wall, but he didn't see the facilities for the hidden bomb, and his face suddenly darkened.

"Zhang Tongshi, how is the preparation of the hidden bomb?"

At this time, three hours have passed since Zhu Youlang's fortification in the morning, and the Qing army may attack the city at any time, time is life, he was a little relieved, so he asked.

"Back to the emperor, there were 1,000 gunpowder earth bombs in the past, and this morning I organized people to make 200 of them." Zhang Yi stepped forward and replied.

"1,200 pieces, not enough, we must pay close attention to it, and make as many systems as possible." Zhu Youlang advised.

"We don't have much gunpowder in stock, and we can make up to 300 pieces." Zhang reported truthfully.

"Use up all the gunpowder and let the Qing army eat a pot." Zhu Youlang picked up a dirt bomb and said.

"Your Majesty, the earth bomb has been made, but how can the bomb be dropped? We didn't come up with a way to do it. Zhang Yi complained to the emperor.

"How about lighting a bomb and throwing it by hand?" Zhu Youlang thought about it and said.

"A bomb is about 16 taels, we have tried it, and the strength can only be dropped 50 meters, and it is impossible to achieve a long-distance strike." Zhang Yi showed a helpless expression.

"Then first select a group of high-strength bombardiers in the army, and at the same time you will think of other ways." Zhu Youlang couldn't think of any other tricks for a while.

The so-called "hidden bomb" of Zhu Ci's dream is to launch it in a dark place, so that the enemy cannot be caught off guard. Therefore, it is very important to choose a good starting point.

"Lord Zhang, how is the bomb dropping point arranged?" Zhu Youlang asked again.

"Returning to the emperor, set up four bombing points on the city wall, and set up four bombardiers at each point." Zhang Yi said.

"There is no shelter on this wall, so it is easy for the enemy to find it." Zhu Youlang pointed out the problem.

In this regard, Zhang Yi was silent, the only thing he could think of was this.

Coming down from the city wall, Zhu Youlang was not at all steady, according to Zhu Cijiao's tactics, the dark bomb was the first round of strikes to block the enemy's siege.

Judging from the current defense situation, there are many loopholes and inadequate preparations, and it is simply impossible to achieve an effective strike.

How can we make the "hidden bomb" defense more perfect? Back in the study, Zhu Youlang leaned back on the chair and pondered.

This tactic was proposed by the prince, and it seems that Zhu Cijiao needs to be perfected.

Zhu Youlang fell asleep thinking about it, fell asleep, and soon dreamed of Zhu Ciyi.

"Er, the method of concealed bomb warfare you proposed, setting up bomb dropping points on the city wall, it is easy to be found by the enemy and shelled, is there any other way to set up bomb dropping points?" Zhu Youlang couldn't wait to ask.

"If you set up a bomb point on the city wall, it is called an open bomb, and since it is called a dark bomb, the bomb point is set in a dark place." Zhu Cijiao said unhurriedly.

"The boy has never been on the city wall, and there is no shelter on the city wall, that is to say, there is no darkness." Zhu Youlang explained.

"The ministers under my father are all wooden fish heads? There is no darkness on the city wall, so it should be set under the city wall, and it is impossible for the enemy outside the city wall to see through the city wall! Zhu Cijiao was a little impatient.

"The walls are so high, how can a bomb be dropped?" Zhu Youlang had a new problem.

"Father, it's so easy to solve, using the principle of rubber fork hitting birds, you can solve the problem of throwing bombs in the wall." Zhu Cijiao smiled and said lightly.

"Let's be specific." Zhu Ci played with a rubber fork in his previous life, but Zhu Youlang was born in the emperor's family and never played with a rubber fork at all.

"That is, at each bomb throwing point, install a 'Ya' shaped tree fork, fix the elastic rubber band on the tree fork, and use the elastic force of the rubber band to throw it outside the city wall at 60 degrees, with a range of more than 100 meters." Zhu Cijiao explained in detail.

Seeing that Zhu Youlang didn't understand very well, he added: "Father, you tell the soldiers to use the rubber fork method to drop bombs, and they will understand." ”

Zhu Youlang nodded: "Okay, I'll tell the soldiers like this." He stretched himself out, and he woke up from his dream.

Zhu Youlang stood up and walked out of the study.

"Your Majesty, where are you going?" Li Guotai, the personal eunuch, followed up and asked.

"Go to the walls and check the defenses." Zhu Youlang said and walked towards the city wall.

"Did the emperor come down from the city wall half an hour ago? Li Guotai said puzzled.

"I'm going to teach them how to set up bomb drops."

Li Guotai didn't say anything more, and followed Zhu Youlang to the city wall.

Zhang Yi didn't come up with a way to set up a bomb dropping point, and when he saw the emperor coming again, he was so anxious that he broke out in a cold sweat.

"Zhang Tongbing, the emperor told you to come down." Zhu Youlang did not go up to the city wall, and asked Li Guotai to call Zhang to come down.

"Your Majesty, what do you have to say?" Zhang Yi hurriedly asked.

"Zhang Xuan, you see, the principle of hitting birds with rubber forks, set up bomb dropping points here, after the bomb is ignited, 60 degrees, can it be dropped outside the city wall?" Zhu Youlang pointed to the sky and asked.

"With this method, not only can you vote, but you can also vote far! How did the emperor come up with this solution! "Zhang Yi was playing with a rubber fork when he was a child, but his head was broken, and he just couldn't think of this way.

"Then use this method, hurry up the arrangement, do a few more points, and finish it before dark today." Zhu Youlang finally showed a shallow smile on his face.

"Yes, Your Majesty, I promise to complete the task." Zhang Yi said confidently patting his chest.

Seeing Zhu Youlang coming to patrol, Qu Shiyun ran to report: "Report to the emperor, the wooden planks for borrowing arrows have been prepared." ”

"That's good, how to borrow arrows, please plan in advance." Zhu Youlang thought about it and said

"Okay, after the minister thinks about it, report to the emperor." Qu Shiyun readily agreed, but when he thought about it, when would he be able to think about it? Will the Qing army outside the city wait for him to think about it?

……

At this time, Zhu Cijiao, who was in the deep mountains, was still thinking about how to implement the bee sting tactics, especially if he was far away in the mountains, how could he organize and implement it? He promised his father in a dream, which seemed a little hasty.

Although Zhu Cijiao can summon bees and issue orders to poisonous bees, the battlefield and the enemy are in Guilin, and he must go to the battlefield to command the poisonous bees to attack the enemy.

On a whim, if Master taught him stealth skills, he would infiltrate the enemy army and attack the enemy with poisonous bees, which would have the best effect.

But now that the war is imminent, will Zhang Yin teach him stealth skills? Can you learn stealth skills in a day or two?