"Huh? What is a kangaroo? A kangaroo is a mouse with a pocket that jumps. ”

"Don't interrupt me, you're not done yet! The masters had traveled as far north as a place covered entirely in snow and ice, where the days and nights were very long, sometimes nights for months, and sometimes the sun remained in the air for months. They went as far west as the Western Regions to the Far West, where there was a country called Athens that was very ingenious, and they built houses the size of a mountain, and they were all made of stone. As far east, they sailed to a place full of gold and silver, where the people were unclothed and jumped up and down all day with a spear...... Well, it's a real spear......"

Seeing Li Xinlan ask, Zhang Guanghua ran the train with his mouth full.

Hearing this, Li Xinlan's mouth opened wide in surprise, the world Zhang Guanghua described was completely another world that he was not familiar with, how much she wanted to go to those places to see. So she pulled Zhang Guanghua's sleeve and said pleadingly: "Is there really so much fun?" Is there a place where the sun never sets? Is there a place full of wild people? Will you take me with you in the future? "At the end of the day, at the age of eighteen, she was still a child.

Seeing that Li Xinlan had such a cute side, Zhang Guanghua's sweet heart was about to melt, he gently held Li Xinlan's jade hand, and said solemnly: "Okay!" I promise you, I'll take you there. ”

Who knew that this sentence would really become Zhang Guanghua's lifelong promise in the future, and when the world was decided, he began to fulfill his promise.

After a while, both of them felt as if this was inappropriate, one let go of his hand, and the other hurriedly withdrew his hand and hid it behind him, and the air was full of happiness.

"Brother Li said that you are already vulgar, is it true? Will you ever be a monk in the future? Li Xinlan, who had been blushing with her head down, looked up at Zhang Guanghua's hair that had not yet grown, and asked while fiddling with the corners of her clothes.

After scratching Li Xinlan's nose, Zhang Guanghua couldn't help but smile and replied: "Don't worry, little girl, I won't be a monk anymore, I'll be vulgar a long time ago!" ”

"Don't call me a little girl, I'm sixteen! And you don't always call me Miss Li on the left and Miss Li on the right, just call me Xinlan. Li Xinlan angrily slapped Zhang Guanghua's hand away and said.

"Good! Then you can't call me Li Gongzi, call me Brother Zhang. ”

"Deal."

……

When Li Xinlan packed up her things and left, Zhang Guanghua was still stunned. It was only a little more than a month after coming to the end of the Yuan Dynasty, and he tasted the taste of love. Touching his hand that had been patted by Li Xinlan, he returned to the tent and fell asleep sweetly.

The next day.

As soon as the sky showed a little light, and even the birds had not come out to forage for food, the fierce Lu Guangfu pulled Zhang Guanghua out of the bed: "Strategist, it's not too early, let's sum it up together, I always feel inappropriate for you to let my cavalry wait for the infantry to break through the city before attacking." If the siege of the city is long, I can't watch Li Da's soldiers sacrifice in vain and be indifferent! ”

"Confused, do you want your cavalry to climb the walls first?" Zhang Guanghua got up angry and said very unhappily.

Saying that, he thought of the plan he discussed with Li Da last night, originally that plan was only a backup plan at that time, and it was best to succeed, and there was no loss if it didn't succeed, but since General Lu cooperated like this, it would be ......

So he patted Lu Guangfu on the shoulder with a wicked smile and said, "Since General Lu wants to attack so much, then I will let you be the first to charge later, but I have to wait until I break the city." ”

"Broken city?"

"Yes, I have my own plan! Go down and get ready. ”

After Lu Guangfu got out of the tent, Zhang Guanghua thought about how yesterday's affairs were going while getting dressed. In fact, when he was in Anxi County, he thought of a way to quickly break the city. The ancients didn't know about the airtight blasting operation, but it doesn't mean that he didn't know, and after capturing Anxi, he also specially asked if there were any people among the captives who could "attack the hole".

Cave attack is a method of siege in ancient times. The soldiers first dug a three-person deep pit outside the city, and then dug horizontally from the bottom of the pit to the city wall, in order to prevent the excavation from landslides and burying people alive, the soldiers also needed to use long bamboo poles on the ground to penetrate into the tunnel for ventilation. In order to prevent the Yuan army from knowing the direction of the tunnel, it is also necessary to insert other fake bamboo poles on the ground irregularly.

When the tunnel is dug into the city wall, the foundation of the city wall is hollowed out, and then the foundation is excavated horizontally while the foundation is held up with thick wooden piles. After digging the foundation horizontally for more than ten meters, all the wooden piles will be pulled down, so that the city wall will collapse from both sides to the middle. However, the shortcomings of this "cave attack" are also obvious, although it only takes about half a day to dig the tunnel, but it takes two or three days to hollow out the foundation of the city wall. Moreover, after the collapse of the city wall, the earth and stone are still there, and the masonry will be piled up into a steep slope, so it is not very convenient for the soldiers to attack.

This "cave attack" also has a fatal drawback, that is, the defenders can judge the location of the attack by the echo of the wall when the soldiers dig out the foundation of the city wall, they only need to store water in the puddle in advance, and wait until the soldiers dig the foundation and then dig into the ground from the city to pour the stored water to pit \ kill the people underground.

Don't say it, there are really two of those professional military households who know this method, and they are two brothers surnamed Huang. So Zhang Guanghua promised them that as long as the soldiers successfully dug the tunnel under the city wall this time, they would be given freedom after capturing Xianyou County. However, this time is a little different from the previous "cave attack", when you are about to dig the city wall, you can no longer dig straight tunnels, and you have to dig back and forth according to the "N" shape. After digging the city wall, there is no need to excavate the foundation of the city wall, only need to dig a hole of 0.5×0.5×2 under the foundation, and then pave the section of the "N" shaped tunnel to the city wall with wooden planks and quicklime to prevent moisture.

Zhang Guanghua, who had dressed himself, walked to the headquarters and called Li Da and Lu Guangfu to inspect the "tunnel warfare" project that had been excavated yesterday afternoon.

"How's the digging?" Seeing that the soldiers on duty at the edge of the pit were still quite energetic, Zhang Guanghua asked one of them.

"Hui Junshi, it has been completed, and the two brothers of the Wu family are doing the final inspection, and they should come out now." As soon as the soldier finished speaking, he saw two gray-faced men stooping out while patting their hair. When they saw the military advisor standing at the entrance of the cave, they immediately reported to him the achievements of the previous night, and the task had been completed.

"Well done!" Zhang Guanghua patted them on the shoulder and said to them: "But I still need you to go in again, and I will go in with you." ”

"Lu Yishan!"

"Mark it in!"

"Bring me what I want."

I saw Lu Yishan and his party behind carrying over...... A coffin...... Yes, it is a coffin, and the main purpose of Zhang Guanghua coming by carriage is to drag two coffins filled with gunpowder. Pity the two of them, Li Xinlan and Lu Zhen, who didn't know it, had been playing on the wooden board of the coffin for the past two days.

Zhang Guanghua opened the lid of the coffin, called the two Wu brothers over, and taught them: "This is filled with granule gunpowder, which will produce a violent explosion as long as it ignites in a confined space." After speaking, he took out the two rolls of fuses and cords inside, and continued, "These fuses are tanned with cotton rope and gunpowder, which are not easy to extinguish, and they were placed inside to prevent moisture. ”

After saying that, he instructed his guards to nail the coffin tightly, and then asked them to carry the "gunpowder coffin" into the tunnel with him, while the Huang brothers led the way in the front.

"Strategist, you promised us that if we use this method to break the city, you will ensure the safety of the people in the city, can you do it?" In the tunnel, the boss of the Huang family in the darkness in front of him suddenly spoke.

"Of course! What is the purpose of our siege? Is it for the riches of the city? No, it is to overthrow the rule of the Yuan Dynasty and let all of us who suffer no longer suffer. The people in the city are all Han Chinese, of course I must treat them well, otherwise there is no difference between our rebel army and the brutal court. Not only the Han Chinese, but also the Mongols and Semu who laid down their arms will be treated in the same way. We, Li Lu's army, are not for us personally, but for our entire nation and country! Zhang Guanghua held the torch and said with a righteous face.

What he didn't know was that the Huang family brothers in the dark had smiles on their faces, and their grips on the iron hoe were also released. And it was his words that made the Huang family brothers, who later became experts in explosives and artillery, desperately fight for him in the north and south. Of course, that's another story.

Put the gunpowder coffin in front of the city wall, Zhang Guanghua instructed everyone to seal the tunnel layer after layer with the bricks and stones prepared in advance, he knew that the more closed the space, the more violent the explosion. And we must not let the tunnel become an outlet for the explosion, we must let the power of the explosion break through upward. After bypassing the previous "N" shaped channel, Zhang Guanghua asked everyone to stop.

When he lit the two fuses with his own hands, everyone exited the tunnel as fast as they could, and they continued to retreat two miles away with the people outside the tunnel before stopping.

After instructing Lü Guangfu and his cavalry to prepare for the charge, he and everyone began to wait anxiously. It seemed that two centuries had passed, and it seemed that only two minutes had passed, when a violent tremor suddenly came from underground, and at the same time, there was a "bang" that shook the heavens and the earth in front of me. Then I saw a cloudy mushroom cloud of dust rise in front of me. It didn't take long for everyone to feel some gravel falling on their heads one after another, but at that time, everyone was already stunned and forgot to cover it with their hands.

Zhang Guanghua turned his head sideways and saw Lu Guangfu, who was also in a daze on the horse, and immediately shouted at him: "General Lu! General Lu! Don't be in a daze, hurry up! ”

(3019 words)