Zhu Di knew that his teacher was a resourceful man who was not born in the world, so he and Zhu Quan followed to see what the teacher had to solve the current dilemma.

On the wide river surface that is difficult to see as far as the eye can see, the surging river under the churning of the giant lang is like a giant dragon roaring and flowing away, and the deafening sound of the water makes people fully feel that the power of heaven and earth is as great as it is, and the incomparable power of thousands of troops and horses in nature is so small and insignificant.

"You don't see the water of the Yellow River coming up from the sky, rushing to the sea and never returning. If you are not immersed in the scene, it is difficult to know the unrestrained and heroic nature of Li Bai's poem "Will Enter the Wine", and the atmosphere is myriad. Seeing such a magnificent scene, Zhu Quan touched the scene in his mind, and suddenly remembered this familiar poem that has been passed down through the ages.

Dao Yan looked at the Yellow River rushing away, and after a moment of silence, he turned his head and smiled at Zhu Di: "The strategy to break the city is to borrow water as a soldier, and the water will flood Jinan." ”

Zhu Di was overjoyed when he heard this.

The crowd rode around and climbed to the top of a mountain. Zhu Quan looked at the vast and magnificent Jinan City in the distance, and couldn't help but ask: "Master, the flood cannot be controlled by manpower, if the river flows to other places after digging the embankment, won't we wait in vain?" ” ”“

"As the saying goes, the water flows downward. Diverting water to flood the city is not a difficult task in the eyes of the old man. Dao Yan said with a smile and a bit of a non-answerable question.

Zhu Quan was still unconvinced, pointed to Jinan in the distance and said: "I am in a high place now, so I naturally feel that Jinan City is low, but it is difficult to tell where it is high with the naked eye?" Where is it low? If the flood rushes and eats our army, will it not be self-defeating? ”

Zhu Di couldn't help frowning when he heard this, and his eyes looked at Dao Yan for a moment.

Dao Yan laughed, pointed to Jinan City and asked, "Lao Wei traveled all over the world when he was young, and he also went to Jinan. Speaking of this, he turned his head, his deep eyes glanced at Zhu Di and Zhu Quan, and asked unhurriedly: "Jinan is also known as "Quancheng", and the two highnesses naturally know. ”

Zhu Quan said with his head bowed when he heard this: "Jinan has the world-famous Baotu Spring, from which the name of the spring city comes from. ”

Dao Yan bowed slightly, and said in a deep voice: "There are many large and small springs in the city of Jinan, and the underground Yin River gushes out from the springs after secretly gathering under the city, which naturally shows that its terrain is the lowest place within a radius of dozens of miles. Our army only needs to dig a simple river channel for a little guidance, and when it rains heavily and the Yellow River rises, the embankment can be dug up, and the flood water can naturally be diverted to irrigate the city.

Zhu Di heard the teacher's plan to turn the river and the sea upside down, and he couldn't help but feel relieved.

Zhu Quan heard Daoyan's words, and couldn't help but smile bitterly in his heart, later generations always thought that his intelligence and intelligence were far superior to the ancients. Yes, you are more educated than most people in ancient times, and you can be resourceful in front of village women and fools, illiterate people who can't read big words, and even sour Confucians who read poetry and books, but if you are in front of the real demons and masters of ancient times, maybe your cleverness is just a ridiculous naughty child's trick.

However, in the next ten days, it was beautiful and no longer rained.

Although Zhu Di was unfavorable, he lost his troops under the city of Jinan, after all, he was a battle-hardened commander, and he had to give advice, and he saw the arrival of the troops who escorted the grain and grass one after another.

In July, the rainy season finally arrived, and after several days of heavy rains, the water level of the Yellow River rose sharply under the collection of water from the upper reaches of the river.

Zhu Di came to the river in person, and saw that the turbidity of the water was much larger than half a month ago, and immediately ordered the army to pull out the camp and leave the village, and slowly walked towards the high terrain of the hillside.

The Yan army had not attacked the city for many days, but Sheng Yong did not dare to be careless at all, and patrolled the city every day to boost the morale of the defenders. At this time, he saw from afar that the Yan army outside the city had turned to build a village on the hillside, which did not seem to be a sign of retreat, but he was a little suspicious in his heart, but he couldn't figure out what Zhu Di's intentions were.

Under the sound of footsteps, Tie Xuan and Gao Xianning, who participated in politics, came to the front, and it turned out that the two of them heard that the Yan army outside the city was moving, and immediately rushed from the city to check.

Sheng Yong saw that the robes of the two of them were soaked and dripping, and he couldn't help but ask, "Why is this situation like this, my lord?" ”

Tie Xuan wiped his face with his sleeve and said with a wry smile: "After several days of heavy rain, the water from Daming Lake and various springs in the city has increased greatly, and many people whose homes are by the lakeside springs have been flooded under their feet. ”

"It's not good, the thieves want to use poison tricks to dig up the Yellow River and flood our army." Sheng Yong looked at the scene of the Yan army gradually moving towards the hillside in the distance outside the city, and then heard Tie Xuan's words, and suddenly recalled that the Yellow River was not far away, and he saw through Zhu Di's plan when he landed. He was a general of the unified army, and after he decided to defend Jinan, he naturally also carefully investigated the terrain within a radius of dozens of miles outside the city, and knew that the surging Yellow River flowed not far from the city.

Tie Xuan's complexion changed drastically and he hurried towards the city, and sharply ordered his subordinates to sound a gong in the city to tell all the people in the city to move away from the springs, Daming Lake and other lower places, to the higher places in the city, on the city walls or even on the roofs, so as not to be swallowed up by floods.

Sheng Yong also issued a military order in a hurry, asking his thousands of households to lead the army to assist Tie Xuan in maintaining order in the city, and transfer the grain, grass, and baggage to the city walls and roofs as soon as possible.

The flooding of the Yellow River has been in all dynasties, Gao Xianning is a native of Shandong, he has seen the flood raging since he was a child, and his heart is better than Sheng Yong, Tie Xuan is slightly calm, and after a little thought, he said to Sheng Yong in a deep voice: "My lord, the city gates of Jinan City have been blocked, and when the flood comes, we must open the city gate and try our best to unload the water potential, otherwise the city wall is only afraid of not being protected." It turned out that Sheng Yong knew that when the siege was fighting, the city gate could be described as a key point. Determined to defend Jinan in his heart, he had already ordered the army to completely block the city gates with bricks and stones after the battle with Jiancheng and Zhu Di.

Although Sheng Yong didn't know much about what Gao Xianning said, he also witnessed him write back to refute Zhu Di, and helped Tie Xuan for many days to help Tie Xuan's shrewdness and ability, and seeing that it was impossible for the Yan army to attack in a hurry after camping up the mountain, he immediately ordered several thousand households to lead the army to move away the bricks and stones blocking the city gate.

In the afternoon, Zhu Di, the king of Yan, saw that the 200,000 troops under his command were all stationed on the hillside near Jinan City, and immediately ordered to dig the embankment.

The water of the Yellow River, which has risen sharply under the heavy rain for several days, continues to pour out from the gap, and the turbid giant lang tumbles down like a giant beast from the ancient flood and famine, breaking free from the cage, roaring with teeth and claws, and rushing towards Jinan City with a momentum of thousands of miles.

The huge lang rushed and roared, and the flood swept all over the sky, and its sound was still faintly heard several miles away.

Tie Xuan stopped at the head of the city, looked back and saw the four city walls, and the roofs of the dense houses in the city were full of people helping the old and the young, and scolded fiercely: "The anti-thief Zhu Di is so mad and has done such an evil deed that people and gods are angry about. ”

In front of the city gate tower, Sheng Yong looked at the flood looming on the horizon in the distance, Rao is he has been through the battlefield, looking down on life and death, and in the face of such a scene that swallows everything, he can't help but be a little frightened. After all, the manpower of thousands of troops is limited, and it is also insignificant in the face of this surging flood.

Tie Xuan had already made up his mind to live and die with this city when he escorted the grain and grass into the city, and immediately took the wine jug and said: "For a few days, I have been fighting the enemy side by side with the general, so it is better for me to make a bloody alliance here, and it is not in vain to fight a bloody battle side by side for a few days." ”

Sheng Yong turned his head and saw that Tie Xuan had no trace of fear in his eyes, and he had the bearing of Mount Tai collapsing in front of him without changing his color, and he couldn't help but secretly feel ashamed in his heart, and secretly thought to himself: I don't want to wait for the Han to come to an end, but it is better to despise a rotten Confucian on weekdays. Reaching out and cutting his finger with the blade of his sword, he dripped blood and wine, and Lang Sheng hugged his fists and said: "Unexpectedly, the eldest brother is a scholar, and he is so heroic at the time of life and death, and we are ashamed to kill the Han without shame." With that, he took a big sip of wine.

Tie Xuan stretched out his hand and grabbed the wine jug and dripped blood inside, laughed and drank a sip of wine, seeing that the distance of the flood under the city was only dozens of zhang, the whistling sound came with the wind, and said loudly: "If I am lucky enough not to die, I will fight to the death with the thief Zhu Di and Zhu Quan again." ”

The huge lang that is more than a foot high rushed forward, and finally hit the city wall of Jinan, making a loud noise, and the huge and incomparable force splashed up and swept over the city. The flood water poured in from the city gate, and a group of houses near the city gate collapsed and disappeared in an instant, and a huge stream of water raged towards the lower terrain. The person who stood on the roof could not help but panic when he saw the water growing under his feet. Those who dared to plunge into the water did not have time to exclaim before they disappeared without a trace under the sweep of the turbidity.

Standing on the top of the mountain and looking at Jinan City in the distance, Zhu Quan, saw that the city gate was wide open, and let the flood rush in, and after a little thought, he already understood the intention, and secretly thought to himself: Ancient bridges were often equipped with holes, and the intention was that the bridge unloaded the huge and incomparable impact force in the face of the impact of the flood. Seeing the flood surging down, the water outside the city is growing, but the city wall of Jinan is still as solid as a rock, standing tall under the impact of the giant lang, so that the flood can not be extinguished, only the flow of the stream, gradually towards the two wings, the surrounding surge, the heart can not help but secretly admire Jinan as the capital of Shandong, its city wall is solid and firm, the construction quality is superior, it is not a sky-high investment, after a few cars will collapse the tofu slag project is comparable. Is the reinforced concrete structure inferior to the handmade bluestone bricks? Perhaps it is that our descendants will use their wisdom elsewhere and disdain to learn from the pedantry and antiquity of the ancient architects.

Dao Yan saw that his plan to overturn the river and the sea was as powerful as Xu Zhiwei, but his face was dumbfounded and there was no joy, and he secretly thought in his heart: Today's sin, the poor monk is really dead and cannot be redeemed. He grew up in the troubled times at the end of the Yuan Dynasty since he was a child, and he has seen too many tragic things, and his heart is far from being comparable.

Zhu Di, the king of Yan, overlooked the mountain, and suddenly recalled in his mind that a few days ago he heard that Zhu Quan commented that the reason why Wang Mang was infamous as a traitor through the ages was just because of the failure of the restructuring and his death, and the words of the king and the defeat of the king, sighed secretly in his heart: Ci is not in charge of the army, it is really not a lie. Since this king is not willing to sit idly by, then the world can only be decided by one war. If this king is defeated and dies, it will only leave a usurper death in the green history, and the infamy of Wang Mang will be reckless. If you succeed and scold, if you lose, let this king borrow water as a soldier and go against the sky.

A few days later, the water in the city of Jinan gradually receded, and Ji Gang, who was wearing the costumes of a hundred households, came to the city again, asking Sheng Yong and Tie Xuan to know the current affairs as Junjie, and quickly return to the army, so as not to burn the jade when the city is broken.

Tie Xuan stood by Sheng Yong's side and said in a low voice: "The plan of the following officials, it is better for us to plan and deceive Zhu Di, and catch turtles in the urn after he enters the city." ”

Sheng Yong bowed slightly when he heard this, although because he saw the opportunity early, the casualties of the soldiers and civilians in Jinan City in the monstrous flood were far lower than Zhu Di, Zhu Quan and others estimated that the morale was lower than in the past, and if they faced the Yan army at this time, there would be a risk that the city would not be protected.

In the evening, in the tent of the Yan army, more than ten old men in the city who were more than half a hundred years old prostrate in front of Zhu Di, the king of Yan, and offered Tie Xuan, who participated in politics with tears in his eyes, and commanded Sheng Yong's joint letter, saying that he asked the Yan army to retreat ten miles back and lead the soldiers and civilians of the city to surrender, and asked His Royal Highness King Yan and King Ning to lead a hundred personal soldiers into the city to take over. An old man with white hair cried: "There are traitors in the court, so that the king is risking your life and fighting to the death." You are the son of Emperor Gao, and I have been a subject of Emperor Gao all my life, and I have always wanted to surrender to you, the king. But we Jinan people do not practice military revolution, and when we see the army pressing the border, we are deeply afraid of being killed by the sergeants. Please retreat ten miles from the king, ride into the city alone, and we welcome you! ”

"If it weren't for Tie Xuan, Sheng Yong would have gone his own way, why did this king make such a decision?" Zhu Di sighed slightly, and then ordered the whole army to withdraw ten miles from the camp tomorrow, and he and Zhu Quan entered the city. The reason why he let go of Li Jinglong's hasty retreat in the past, and instead led the troops to attack Jinan, is that the strategic location of this city is not trivial, if it can be won in one fell swoop without blood, it will have an immeasurable effect on consolidating the city captured in the rear.

Zhu Quan secretly thought that after several bloody battles between the two armies, the generals and soldiers were full of resentment, and if the army entered the city, it was indeed not conducive to stable acceptance. Therefore, although there was suspicion in his heart, he still endured it and did not say it, and he did not see Dao Yan when he looked around, so he realized that this old monk was recuperating in the camp after falling ill.

In the early morning of the second day, Zhu Di and Zhu Quan led Ji Gang and other high-spirited soldiers to come on horseback, preparing to enter the city and surrender.

When the group came to the city gate cave, they saw that on both sides of the muddy street in the city in front of them, Sheng Yong, who was wearing armor, led hundreds of southern soldiers to kneel on the ground.

Zhu Di laughed and said: "Sheng Yong, in the past, you refused to defect to this king on the fishing side of the sea, and today you have this defeat, have you ever been convinced?" "He, Zhu Quan and Sheng Yong are also old acquaintances, and they all followed the Liangguo Gong Lanyu expedition to the desert in the past. Zhu Di's eyes are above the top, but he is quite appreciative of Sheng Yong, the commander of the army, and today seeing this stubborn general who was a stubborn strength in the past kneeling on the ground today, it is inevitable that he will be a little proud in his heart.