Mianzhu is a major defense center in the north of Chengdu and the last line of defense to protect Chengdu. After Sima Lun retreated to Mianzhu, he did not blindly defend Mianzhu, but instead deployed his troops separately to the dangerous pass around Mianzhu, using the dangerous terrain to block the advance of the Wei army.

Because the Wei army had powerful siege weapons like a catapult, defending the city was almost equivalent to self-destruction. Sima Lun had been fighting with the Wei army for a long time and was quite familiar with the attack routines of the Wei army. Only by relying on danger to defend was the only tactic that could effectively fight the Wei army.

It’s a pity that after losing Jiange, there was no such dangerous terrain in Shu that could be used for thousands of people to pass through. Simalun was very reluctant to build a defense line in Mianzhu. Simalun had no idea how long he could last.

After all, the Wei army has formed an encirclement of Chengdu. If you want to defend Chengdu, not only Sima Lun needs to withstand it, but Jiang Wei and Lu Kang must also be strong. Otherwise, if the Wei army breaks through just one place, Sima Lun's efforts will be wasted.

After Deng Ai arrived in Fucheng, he did not launch a large-scale offensive. Although there were several attacks, only a small group of troops were taking action, intending to test the defense of the Shu army.

Sima Lun has always maintained a high level of vigilance. The more strange the Wei army's actions are, it proves that there will be a lot of things here. Now the situation in Shu has reached a critical point, and Sima Lun is also powerless to turn things around and can only take one step at a time.

The two sides were in Mianzhu for more than a month. At this time, news suddenly came from the south that Jiang Wei had committed suicide in Wuyang. Zhuge Zhan went to the reception and died in Wuyang. The Shu army on the southern front was completely destroyed and Chengdu was in danger.

After hearing the news, Sima Lun suddenly felt cold. The thing he was most worried about still happened. The Wei army had been holding troops outside Mianzhu, but chose Nan'an as a breakthrough. Jiang Wei's defeat completely declared a collapse in the Chengdu defense line, which was already on the line of life.

Once the Wei army invaded Chengdu from the south, Sima Lun's persistence in Mianzhu would have no meaning. If Shu Kingdom was destroyed, Sima Lun would completely lose his place to settle down. After the nest was destroyed, there would be no end. It was only a matter of time before Sima Lun's defeat.

At this time, the court sent people to announce the order and urgently summoned Sima Lun to withdraw his troops and return to Chengdu to protect his troops.

Sima Lun seemed a little absent-minded about this. Is it meaningful to go back to Chengdu at this time?

Yang Hu's army was about to attack Chengdu, and Deng Ai from Fucheng was even more eyeing him. Once Sima Lun withdrew from Mianzhu, there was no doubt that Deng Ai would follow him. The Wei army attacked Chengdu from the north and south. Even if Sima Lun had the ability to do everything he could, he could not defend Chengdu.

Not to mention that the Wei army and an east route are in Deyang. According to the current situation, it is impossible for Lu Kang to resist Du Yu's troops. In other words, the final result will be that the Wei army's three armies besieged Chengdu. At this time, the Daluo Jinxian came, which is probably useless.

"Your Highness, the last general has a plan that can exceed 200,000 Wei soldiers." Zhong Hui saw Sima Lun frowning and took the initiative to offer his advice.

Sima Lun looked at Zhong Hui with some surprise. He knew that Zhong Hui had many tricks, but now, the strength of the two sides is too different. Do they still have a chance to turn the tables?

Zhong Hui said: "More than a hundred miles northwest of Chengdu, there is a place called Du'an County. There is a mountain called Yulei Mountain in Du'an County. During the Qin Dynasty, Li Bing, the prefect of Shu County, built a dam and siege water here, which was directed into Shu. The local Qiang people called it the turret, also known as the Jindi. If Your Highness sends troops to Du'an Yan, build a dam and siege water, and when the Wei army besiege the city, they can open the dam and release the water. Chengdu will be a vast ocean, and 200,000 Wei troops can be broken."

Sima Lun said in confusion: "The flood is ruthless. Even if it can defeat the enemy, how can Chengdu protect it?"

Zhong Hui smiled indifferently and said, "This is a plan to burn both jade and stones. The Wei army besieged the city, and Chengdu will not be spared. It is better to destroy it with water and die together?"

Sima Lun of course knew the consequences of irrigating water to Chengdu. Zhong Hui's plan was also quite vicious, which was to take all the military and civilians of Chengdu City and the Wei army together. Once the Wei army besieged the city, the Shu army would open the dam and release the water, and fight for it to burn it.

Simalun thought for a long time, but finally nodded. A ruthless look flashed through his eyes. Simalun was in a state of hatred and family hatred. So the best result now is to die with the Wei army, and it is best to bring Cao Liang together, so Simalun would be willing to die even if he died.

But this matter needs to be done extremely secretly, otherwise the Wei army would not easily siege the city. And once the news leaked, the first one would be the Shu people. Sima Lun had the idea of ​​dying with the Wei army. However, most people in Shu did not think so. They would rather surrender than fight to the death. If they knew that they had become burial objects, it would be strange if they were not in a hurry.

So Sima Lun allocated 10,000 people to Zhong Hui and asked him to go to Du'an County to guard Du'an County in name, and guard Chengdu. However, after Zhong Hui arrived in Du'an County, he would block the internal and external passages of Du'an County, and then secretly build a dam to surround the water to raise the water level of Du'an Yan.

Of course, the dam construction cannot be completed in one go, but it needs to be carried out slowly, otherwise the Minjiang River will be cut off at once, and people downstream will immediately find abnormalities.

Moreover, the water volume of Minjiang River is very large, and it cannot be intercepted if it is built manually by artificial dams. Sima Lun asked Zhong Hui not to be anxious, and to build the dam slowly and raise the water level slowly. The plan to flood Chengdu will never have any leakage.

After everything was arranged, Sima Lun led his troops back to Chengdu. Fortunately, Deng Ai did not send troops to pursue him, so Sima Lun's retreat was relatively smooth. Otherwise, he would probably follow Jiang Wei's footsteps.

When talking about Jiang Wei, Sima Lun couldn't help but feel a little sad. To be honest, since he surrendered to Shu, Jiang Wei has treated him very well. The two of them feel that they met too late, and Jiang Wei also trained Sima Lun as his successor.

In the last correspondence, Jiang Wei seemed to have felt that his deadline was approaching, so he entrusted all the military affairs of Shu Kingdom to him and told Sima Lun that he had submitted a letter to the court and asked Sima Lun to take over his position as a general and lead the three armies.

Although this position is now a hot potato, it also shows how Jiang Wei valued Sima Lun.

The letter mentioned that he hoped Sima Lun could get rid of Huang Hao, which was probably Jiang Wei's last wish. Sima Lun secretly swore that he might not be able to fulfill other wishes, but getting rid of Huang Hao, the treacherous, is the least difficult.

Jiang Wei was grateful to him for his kindness, but his resolute wish was not fulfilled until his death. Of course, Sima Lun did not want him to die with peace of mind.
Chapter completed!