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Weng walked to the sand table and pointed the river in the east of Wancheng with a wooden pole, "This is the pure water, and it is also the source of the Wancheng moat. The moat on the terrain is slightly lower than the pure water, but the moat is not the lowest point, and the lowest lying place is here."

Pin pointed to a small town to the north, "This town is called Sunset Gathering, about ten miles away from Wancheng. It has the lowest terrain here. You can first block the upstream and downstream of the Qingshui River, cut off the water source of the moat, and then dig the moat to lure the water here, so that a lake can be formed here. This series of fortifications takes up to four days at most, and the water from the moat can be drained."

Liu Jing shook his head, "I'm afraid I can't wait for that long, I'm going to break the city tonight."

Pin was stunned, "Why is Your Highness so anxious?"

Fa Zheng next to him explained: "The key is the reinforcements from Xuchang. We just received the news that Xiahou Dun had realized our true purpose and personally led tens of troops to Nanyang. He was expected to arrive in Ye County tonight. If we cannot take Wancheng within two days, the situation will be very unfavorable to us, and the Nanyang Battle may fail."

Pin was silent and said for a while: "If there is no drainage method, then we can only build a pontoon bridge with a boat, but there is a large amount of tincture oil accumulated in Wancheng, and we will face a great threat."

Liu Jing smiled, "Maybe our fire ape won't disappoint us."

Fire Ape Pin was stunned, who is Fire Ape

The overnight investigation in Wancheng has temporarily stopped, and Cao's army has found nothing. Cao Hong asked the officers responsible for investigating the big households whether they had thoroughly investigated. All the officers swear to pat their chests and promised that they had to thoroughly investigate. As for how credible they were to pat their chests, only they themselves knew.

At first he thought it was very simple. He could always find more than 40 people in the city, but in fact, after checking, he realized that things were not simple, but there were too many places to hide, which made him unable to investigate. More importantly, Cao Hong had realized that indulging the Soldier City would make him lose the hearts of the people and thus the help of the people, so he had to order the arrest to be suspended.

Now he can only hope to give a reward to capture it, and he will increase the reward to five taels of gold. If he can provide a line, the Cao army can capture the enemy's detectives and reward the gold with a heavy reward of five taels.

In the warehouse of the back house of Huangfu, Ren Ping and others were still patiently waiting for the news. Cao's army had martial law in the city and patrol soldiers were everywhere. Now it was easy to be discovered when he went to the streets. More importantly, he needed the Huang family to provide necessary information.

At this time, someone knocked on the door outside the warehouse. The soldiers raised crossbow arrows. Ren Ping whispered and asked his men to go and open the door. He saw a figure flashing and one of them had entered the warehouse. "General, it's me." This was Huang Yu's voice.

Everyone put down their crossbows. Huang Yu took out a neatly stacked oil paper bag from his arms, and stepped forward to Ren Ping, "This is the map the general wants."

Ren Ping was overjoyed and quickly took the map and spread it on a wooden box. It was indeed the military deployment map he wanted. Ren Ping was surprised. Where did Huang Yu get such an important map?

Huang Yu seemed to understand Ren Ping's thoughts, and smiled and said, "This is actually Zhang Xiu's military defense map in the past, and Cao's army also used it. The Zhang Mansion has this map. I just sent the butler to Zhang Mansion to come."

"Isn't there martial law outside?" Ren Ping asked in confusion.

Huang Yu sighed, "Now Cao's army is catching strong men from house to house. The streets are very messy, and it doesn't make sense to quit martial law."

Ren Ping's heart lit up. He seemed to have seen an opportunity, but now he has to find the turmeric oil depot first. This is his mission to burn down the turmeric oil depot in Nanyang County.

Ren Ping carefully checked the military map in front of him. There were more than a dozen warehouses of all sizes distributed in the two major military camps in Dongcheng and Xicheng. In the Zhang Xiu era, there was no tincture oil, so there was no special tincture oil depot on it, but there were storage points for sulphur cotton yarn and other ignition-induced objects on the map.

Ren Ping quickly locked in the target, and should be in the Dongcheng Military Camp. The Xicheng Military Camp mainly consists of food and grass and arsenals, while the Dongcheng Military Camp contains tents, armor, gongs and drums, flags, rolling wood and other military debris, so tincture oil should be placed in the Dongdaying.

Ren Ping pondered for a moment and said to everyone: "There is no need for many people to go on the mission. Xiaoliu and I can go there. Everyone can be captured by Cao's army as strong men and participate in defending the city together."

Everyone nodded. At this time, Huang Yu said, "The Cao army asked our Huang family to hand over fifty strong men. There are only more than twenty people in our mansion. If you don't dislike me, you can pretend to be a servant of the Huang family and go to apply for the election."

Ren Ping immediately agreed, and he gave a few words to a deputy, and then took a subordinate to leave the Huang Mansion first. Ren Ping's subordinate was a very thin soldier, named Zhao, from Bajun, nicknamed Xiao Liulang, climbing rocks and trees like walking on flat ground, agility like a monkey, and his skills were no less than that of Liu Zheng, the leader of the Eagle Strike Army.

Ren Ping's figure is also small and agile. From his back, the two looked like two eleven or two-year-old boys, and they could not connect them with the strong Han army.

There was a mess on the street at this time, and martial law orders were meaningless. There were crying and shouting everywhere. Many people ran desperately, but were intercepted and taken away by Cao's soldiers.

This time, Cao's army no longer loots property or rapes women, but instead arrests strong men from house to house. As long as they are not old, weak and young, they will take them away. When Cao Hong saw that the people refused to help themselves, he could only force them to arrest people.

Ren Ping and the others did not walk on the street, but walked around the alley. When they died, they climbed over the wall. In less than half an hour, they touched the back of Dongdaying. The surroundings of the military camp were surrounded by earth walls more than ten feet high. The outside was covered with dense shrubs and grass, and several big trees were distributed along the wall.

The two of them quickly climbed up the most lush tree. In front of them was an open schoolyard, in the distance were rows of military camps, and to their right were more than twenty large brick and stone houses, that was the military warehouse.

The two jumped off the tree, ran for a long time, and climbed up a big tree. Now they are located on the back of the warehouse. "General, how can we find dozens of warehouses?" Xiao Liulang asked in a low voice.

Ren Ping waved his hand and was carefully observing these warehouses. His existing warehouse existed, located at the westmost point. From the perspective of fire protection, the turmeric oil warehouse must be separated from other warehouses.

More importantly, there are only two people guarding the gates of other warehouses, but there are more than ten soldiers guarding the warehouse around them, and they are very cautious, which shows that the materials inside are very important. Intuition tells Ren Ping that the turmeric oil is stored here.

The Han army had experience in burning the enemy's turbulent oil depots many times, including Ren Ping himself. He burned the Cao army's turbulent oil depots while in the West City, thus earning the nickname "Fire Ape". However, the tent warehouse that was burned at that time was different from this brick and stone warehouse.

But Liu Zheng burned down the Jiangdong Army's turtle oil depot when he recovered Chaisang. The warehouse was very similar to the current warehouse. Ren Ping remembered that any warehouse that contains turtle oil must have a ventilation window to facilitate the dispersion of oil and gas.

Ren Ping's eyes turned to the warehouse again. He was careful and indeed a breath window appeared on the back against the eaves. This greatly boosted Ren Ping's spirit, which meant that he had a step further from the correct answer.

The two went down the tree again and carefully climbed up the big tree outside the turmeric depot. In the wall under the tree, five patrol soldiers were pacing back and forth vigilantly. Ren Ping observed through the branches for a moment, but he found that there was almost no chance, and the five soldiers did not leave at all.

What to do is either shoot five soldiers or continue to wait and shoot the soldiers. This is the military camp, and there are dozens of patrol soldiers around the warehouse. Once the enemy is alarmed, I wonder how many thousands of people will come.

Ren Ping looked at the sky again. It was just noon, and it was still early for nightfall. Even more, once Cao's army began to carry irrigated oil, it was estimated that all the irrigated oil barrels would be moved to the city, and they would have no chance.

Ren Ping gritted his teeth and could only take a risk. At this moment, Xiao Liulang touched him and pointed to the gate of the military camp. Only a large number of Cao soldiers poured into the gate of the military camp. Many people were driving large chariots, which seemed to be coming to transport supplies.

Ren Ping's mind buzzed. The thing he was most worried about was finally born. Cao's soldiers must be carrying irrigation oil.

The situation was critical and it was already critical. Ren Ping no longer hesitated and took out the wire crossbow. The arrow was actually a plum blossom-shaped iron hook, and the tail was long. This kind of crossbow was powerful and could shoot fifty steps away.

Ren Ping aimed at the air window, pulled the hanging knife, and shot the arrow, and shot it accurately into the air window, but the sound of shooting alarmed the patrol soldiers below. Several people looked up at the same time and appeared on the rope above their heads. The Cao army soldiers immediately shouted.

"There are spies and spies"

Ren Ping suddenly pulled the rope, and the iron hook on the arrow hooked the iron bar on the air window. Ren Ping immediately ordered: "You cover me, I'll set the fire."

As soon as he finished speaking, Xiao Liulang's figure jumped out and climbed the rope. In order to quickly climb to the air window, more than a dozen Cao soldiers rushed down, and they opened their bows and shot arrows. The dense arrows shot at the Han soldiers in the air. However, Xiao Liulang had a shield on his back, protecting his body, and seven or eight arrows shot the shield. But the moment he jumped towards the air window, a wolf-toothed arrow shot Xiao Liulang's thigh. He shivered in pain and almost fell down.

Ren Ping's eyes were red. He tied the rope to a big tree, and opened a crossbow to shoot at the Cao army soldiers inside the wall. A soldier screamed and was shot to the ground. The Cao army soldiers then found that there was another person on the big tree outside the wall. They turned their bows and arrows and shot at Ren Ping.

At this time, the entire barracks were in full swing. Thousands of Cao soldiers ran out of the barracks and rushed towards the warehouse with the soldiers who came to carry the irrigation oil. They were less than a step away.

Although Xiao Liulang was thin, he couldn't get into the air window, but he could see clearly that the warehouse was filled with countless barrels of turmeric oil, and the barrels of turmeric oil were piled up like mountains. He endured the severe pain in his legs, and did not care about drawing arrows. He hooked one foot to the iron bar, stabilized his body, and curled up his whole body in the shield.

He pulled out the spike of steel and threw it at the nearest turtle oil barrel. With a click, the spike shot into the spike of oil barrel. The spikes cracked a crack and began to gulp out of the crack.
Chapter completed!