After having the dinner invited by Uncle Xu, Qian Xiaoxing and Yi Hongyue were in the General Administration for a night of love. The next day, Qian Xiaoxing called Xu Liang and talked with him about the issue of firing the concave mirror...

The concave mirror to be made is like a concave mirror reflected by a flashlight, which is only enlarged many times. When the light source is in the focus of the concave mirror, it can reflect straight light to the distance. The purpose of making this concave mirror is to use light to transmit information and achieve the purpose of quickly notifying information.

Qian Xiaoxing drew the picture of the concave mirror so that Xu Liang could overcome this production difficulty and do it as soon as possible.

Although Xu Liang had to burn cement and glass as a mirror, he did not dare to neglect what Qian Xiaoxing ordered and immediately took back the drawings and went back to study them.

Qian Xiaoxing took Yi Hongyue to Xu Rulan's grave to pay tribute. Looking at the lush orchids on the ground, he said sadly: "Hongyue, Rulan, who sleeps here, is the first wife in my heart. I hope you will treat her well like me."

When Yi Hongyue saw Qian Xiaoxing so affectionately, she said emotionally. "I can do it."

Qian Xiaoxing sighed to the sky and said, "It was her who made me a man, it was her who made me no longer cowardly, it was her who made me meet you."

Yi Hongyue silently grabbed Qian Xiaoxing's hand and explained: "Xingxing, she is indeed worthy of your cherishment. If you are so affectionate to her, she will be happy underground."

Qian Xiaoxing couldn't help but feel sad when he thought about the past. After thinking about it, he still pulled Yi Hongyue and said, "Let's go. Every time I see her, I feel uncomfortable."

After the two of them burned paper money down the mountain, Qian Xiaoxing took Yi Hongyue to various factories in the village and walked for a while. After lunch, they returned to Liufeng City with Lu Shengzhong and Si Yingying, and then took a wooden rail car to Guandu.

I visited Yingwang Village with Yi Hongyue. Qian Xiaoxing's nervous mood before the battle was much better. If he was defeated, it would mean one word - death. Not only him, but all the people of the State of Si will be unable to avoid it. At that time, the entire State of Si will suffer from the devastation of life.

Qian Xiaoxing asked Xie Boyi to select some literate and flexible people and prepare to teach them how to transmit information on lights. Qian Xiaoxing first told Xie Boyi the basic knowledge of signal transmission, such as point light and long light. Point light means short time, and long light means two signals with a longer time. These two signals can be used to form many combinations, such as short, length, etc., so that Xie Boyi can compile a set of signal tables, requiring basic military information to be transmitted.

After hearing this method, Xie Boyi was very surprised. In this era when communication was yelling, this method could speed up the transmission of information countless times. So he waved to ten soldiers and began to arrange and code, so that the soldiers could memorize it carefully, and asked them to translate it as soon as they saw it.

The Mo brothers sent a letter of information on time for a long time. Qian Xiaoxing looked at the information in his hand: the Hu vanguard troops arrived at Panlong Pass three days later, and felt pressure in their hearts. Looking at the soldiers of the Panlong Pass Independent Regiment, they all looked heavy, and they should be in a very nervous mood.

Qian Xiaoxing verified that the stairs made of big stones climbed the city wall. A row of flags danced in the wind on the city wall, and the words "Si" were written on the black and white. The guards on the top were standing guard and guarding. When they saw Qian Xiaoxing, they saluted. Qian Xiaoxing waved his hand and came to the front wall. Looking at the vast open space in front of Panlong Pass, there were cement retaining wall arrays and five times five grids in the distance. He held the city wall and watched carefully, thinking carefully whether there were any adverse factors to ensure that everything was foolproof.

The Hu army's vanguard camp had 40,000 people. After more than twenty days of long journey, they finally arrived at Longzhan City that afternoon. The main general Hu Baojin sat in a closed wide carriage, holding two pretty women on his left and right arms, and was touching the woman's body. The two women were in a messy clothes, revealing the two white balls on their chests. Hu Baojin was feeling happy and only heard Chen Xuan outside say, "General, Longzhan City is here, 34 miles away from Panlong Pass. Should I rest and leave tomorrow?"

Hu Baojin threw away the woman, lifted the curtains and said, "Then let's go to the city to rest. I haven't had a good sleep these days."

After hearing this, Chen Xuan directed the troops into the city and immediately arranged personnel to garrison Longzhan City. He was cautious all the way, afraid of making mistakes.

There was nothing to say all night. If he had to say it, Hu Baojin had to mess with the two women in the middle of the night. One of them was dissatisfied with the service and was immediately assigned to his subordinates by Hu Baojin.

The next morning, Hu Baojin was called out by Chen Xuan. He was scolded by him before he woke up. He thought that he would take a break in the carriage, so he carried his clothes and rushed the woman into the carriage.

Chen Xuan saw it and shook his head helplessly, and ordered him to the front: "Go!"

Forty thousand Hu troops lined up and walked out of Longzhan City Gate. Chen Xuan couldn't help but feel even more nervous when he saw the team moving forward neatly. The more he reached Panlong Pass, the greater the chances of accidents, and the less easy it was to make up for it. I hope that today I could successfully reach Panlong Pass to set up camp, and then block Panlong Pass. Wait for the 40,000 people behind to come immediately and launch an attack. According to convention, Chen Xuan sent twenty pathfinders to explore the front and both sides of the road.

Chen Xuan and Hu Baojin's carriages were walking in the middle of the army. After about two hours, someone from the front came back to report: "General, the dirt slope on the road ahead collapsed and buried the road surface."

Chen Xuan was shocked when it would not collapse, but at this time it collapsed. Hu Baojin took a nap and saw the army hear it, he stretched out his head and asked, "What's going on? It's here?"

Chen Xuan reported the road situation and Hu Baojin said, "I thought it was so big that it would be fine if the soldiers were moved away." After that, he got back to the carriage and went to sleep.

When Chen Xuan heard that there was no choice, he rode his horse to the front. He saw a lot of soil and stones piled up in the middle of the road. He looked at it and saw that it was obviously sliding down from the side. He saw that the soil was piled high on the road and could not walk at all, so he ordered: "The soldiers in front moved the soil to open the way for me."

When the soldiers heard this, they had no choice but to put down the spear in their hands and lifted stones and soil on the mound. The mound was very high, but unfortunately the location was small, so no matter how many people the Hu army had, they could not do anything. They still had not been cleaned up until noon. Chen Xuan could only order the troops to open fire and cook on the spot.

Hu Baojin felt comfortable sleeping in the carriage, and finally climbed down. He went to the big tree on the side of the road to eat wine and food. Chen Xuan sat aside with him and asked, "General Hu, before leaving, Sima Taishi gave you a tip, saying that he would open it when there were difficulties. Did Sima Taishi expect that there were difficulties in our trip?"

—————Gived eight hundred words————

Hu Baojin took a sip of wine and said unhappily: "What's the problem? He just pretended to behave."

Chen Xuan was very curious about the secret book and said, "Then let's open the secret book to see how?"

Hu Baojin took out the treasure bag from his arms but hesitated. The Grand Master was planning and planning, thinking for a while, and said, "Forget it, Sima Tai Master is also for our own good. Maybe there is something really difficult."

"The Grand Master said that we will have no problem when we are working steadily all the way, so let's see if there is a problem." Chen Xuan suppressed his curiosity, afraid that he would ruin his big things.

The two were talking, and a soldier came to report that the soil on the road had been emptied and Hu Baojin had just finished lunch, so he ordered the troops to continue moving forward.

Chen Xuan said: "General Hu, we have wasted some time moving the road. I am afraid we have to march in a hurry to reach Panlong Pass."

Hu Baojin thought about it and said, "Then speed up!"

The Hu army accelerated the speed and marched towards Panlong Pass all the way. Along the way, the way explorers came back from time to time to report the situation: "General Chen, the Heilong Road ahead is a dense forest, the road is narrow, about ten miles long, and no enemy situation is found."

Chen Xuan heard this and said, "Start up and pass through the Black Dragon Road quickly."

Because the Black Dragon Road was narrow and there were usually twenty people on the road that could be walked side by side, there could only be ten people on the side. Suddenly, the intersection was filled with Hu Jun, waiting to go in batches.

Seeing the sky getting darker, Chen Xuan couldn't help but worry, urging the troops to speed up. There is a high probability of accidents in such a forest, so be careful.

The troops went all the way, and when Hu Baojin's carriage arrived at the middle of the Black Dragon Cave, it was already dark. Hu Baojin rubbed his stomach and said, "Chen Xuan, why haven't you turned on the fire and cooked? I'm hungry."

Chen Xuan immediately stepped forward and reported, "General, he is now in the middle of the Black Dragon Road, about fifteen miles away from Panlong Pass. Let's take a walk while the black is coming, and let's have a meal after the goal."

"What, there are fifteen miles left, how long will it take to walk!" Hu Baojin said angrily: "How can I, Hu soldiers, let them march with hunger?"

When Chen Xuan heard this, he hurriedly defended himself: "General, there are dense jungles here, so it is not advisable to garrison troops overnight."

"It's not right. Is there any lion and tiger that runs out to eat you? I'm hungry and I'm going to fire and cook for me immediately and spend the night here." Hu Baojin crawled back to the carriage with a curse.
Chapter completed!