That night, Wu Sangui locked himself in the lord's mansion, took out the dagger that his father gave him back then, sighed, and began to write a farewell letter.

"Don't Xiao male Sangui, cry blood and worship, go to my father's knees. Throughout his life, my father has always regarded himself as loyal and righteous, and now that the general trend has gone, he should do his best, and if he fails, he should be martyred for the country..."

"Nanjing Lu Jianguo Imperial Court Feng'er is Pingxi Hou, since ancient times, loyalty and filial piety are difficult to achieve... The son is determined to avenge his father's blood hatred, even if he does not succeed in becoming benevolent, won't my father and son also achieve the name of loyalty and filial piety? Why did my father endure humiliation and steal his life in the thief camp, and he was a servant in vain..."

At this point, the wooden window was suddenly blown open, and a strong wind blew in from outside the house, blowing the letter that Wu Sangui had put on the table to the ground, and Wu Sangui picked it up and continued to write until dawn.

“... Even if the thief puts the father on top of the sword, axe, and oil pot, the son will not repent, and from this day on, the son will disown the father and never associate with each other. ”

After this letter was sent, Wu Sangui ordered the beheading of the envoys of Dashun, announcing a complete break with Li Zicheng, because Dashun was still the regime of killing the monarch, and the Manchurians were only uncivilized prisoners, even if the status given to him by these two parties was prominent, it could not be compared with the name of loyal servants of the orthodox court.

At this time, there was only one way left in front of him, either to be a filial son or a loyal minister.

Three days after Qi Yaowu and Liu Si arrived at Shanhaiguan, Wu Sangui ordered that a pair of yellow dragon flags with the word "Wang" on a blue background be added next to the original Ming banner in Shanhaiguan, and all 30,000 elite soldiers of Guanning were replaced with new armor transported by King Qi.

For a time, Shanhaiguan was covered with the banner of the word "king", and the Guanning army had become a branch army under the jurisdiction of the Qi army, and everyone was wearing brand new clothes and armor.

......

Outside the gate, on the old slope, the Qing army camp is densely covered with flags.

Countless Eight Banners horses walked back and forth around the camp, and the people in the camp shouted and neighed, and saw the change of flags on the head of Shanhaiguan City, and even the Guanning army put on new clothes and armor, and the sentry hurriedly told the regent Dolgon the news.

"Wu Sangui defected to Wang Zheng?"

Dolgon sat on a luxurious golden cushion, surrounded by two Han maids who served inch by inch, and the camp was full of Turge, Aobai and other Eight Banner generals.

He took a puff of his cigarette, and when he heard this, he was taken aback, and coughed a few times in succession, and at this time, Wang Duoduo of Yujun got up and said:

"Regent, can you take advantage of the chaos to seize Shanhaiguan, then Wu Sangui only has 30,000 horses, and I have 300,000 in Daqing this time, which is ten times as much as him!"

Dolgon took another puff of smoke and coughed a few times, but did not reply directly, but looked at the obscure Han ministers on the side, and said to one of them:

"Mr. Fan, what do you want to say?"

Fan Wencheng had already thought of a countermeasure in his heart, and when he heard Dolgon's question, he hurriedly got down and made a big salute, which was both skillful and loud.

The surrounding Duoduo and Ao Bai people frowned slightly, and they were even more disgusted with Fan Wencheng, who were spineless, and if it weren't for the authority of Dolgon, Fan Wencheng and the others would have been dismantled long ago.

"Back to the regent's words, the slave feels that at this time, he should bypass Shanhaiguan as soon as possible, take advantage of Mongolia, avoid unnecessary casualties of the Eight Banners Iron Cavalry, and retain his strength to compete for the Beijing Division, Dingding Yanjing, which is the most important thing."

Dolgon pointed at Fan Wencheng with his finger and said very approvingly:

"Look at it, Mr. Fan's words are simply in the heart of this king, but this king still has doubts, then Li Zicheng crisscrosses the Central Plains, it is said that there are millions of troops under his command, it must not be underestimated, what does King Jingnan think?"

Geng Zhongming and Shang Kexi glanced at each other, then got up in a little panic, bowed down and said:

"The slave and Mr. Fan have discussed, although Li Zicheng is unhindered in the Central Plains, but the soldiers and horses under his command will never exceed 300,000, and the slave has also been in the Denglai area, Dashun These 300,000, most of them must be the old, weak, sick and disabled and the former Ming army, so there is no need to worry."

Dolgon nodded, he asked Shang Kexi that they were just to know the composition and actual number of the Great Shun army, and their opinion would not have any effect on Dolgon's strategy.

In his eyes, when Chongzhen was in the second year, Huang Taiji failed to defeat him, and it was already the most difficult city in the world to attack.

Therefore, Dolgon has always been half-believing and half-believing the words of these Han people.

"Someone come, pass on the order of the king, give up Shanhaiguan, take the Daling River, and enter the Central Plains first."

Since Wang Zheng had remnants of the battle for Yanjing, Dolgon's original plan to watch a play at Shanhaiguan and force Wu Sangui to surrender to the Qing Dynasty was completely ruined, but he reacted immediately.

According to the devotion of Fan Wencheng and other Hanchens, Dolgon planned to enter northern Hebei from the Daling River Valley, and then enter from the side wall.

However, this time is different, Dolgon came with the intention of entering the Central Plains, so after entering the Guannai, he will not directly besiege Beijing, but will continue to wait patiently.

Li Zicheng and Wang Zheng have always been mortal enemies, and it would be a pity if they didn't make use of it.

After hearing the news that Wu Sangui had killed the envoy of Dashun and surrendered to Wang Zheng, Li Zicheng expected that he would be furious, and maybe he would send a large army to attack Shanhaiguan, which was what Dolgon wanted.

At that time, Li Zicheng's main force was attacking Shanhaiguan, and Wang Zheng was stopped by the Dashun army in Beizhili, and he would definitely not arrive at the city of Beijing soon, so Dolgon could drive straight into Beijing and conquer Beijing in one fell swoop.

The most important thing at the moment is to be anxious, so let's wait and see.

......

"Wu Sangui killed my envoy and broke with my Great Shun Dynasty!?"

When Li Zicheng, who was in the imperial city, heard the news, he was shocked and angry, and angrily denounced Wu Sangui for being a Zhongshan, and accepted his 40,000 taels of silver, but killed the messenger and went to Wang Zheng.

In the huge Forbidden City, Li Zicheng is already a well-deserved king, and no one dares to disobey, only Wu Sangui slapped him hard, which can be heard clearly.

This is a great humiliation for Li Zicheng, he immediately put his clothes and armor neatly on, and summoned the generals to come to discuss the matter with a knife, saying that he would go east to Shanhaiguan.

"Fighting, now the world is peaceful, what kind of war?"

"That's right, there are still a few concubines in Lao Tzu's mansion, whoever wants to go will go!"

However, what made Li Zicheng helpless was that the generals under the Dashun Army did not buy it, and after hearing his order, they did not respect the order for the first time, but wanted to shirk it for various reasons.

The first to jump out was Bai Wang, a subordinate of the former Liu Zongmin, saying that the torture plan had not yet been completed, and besides, the whole world was looking forward to the wind and surrendering to me, and what kind of battle would be fought when the dynasty changed.

Many of the generals of the former Liu Department were originally dissatisfied with Li Zicheng's favoritism towards Niu Jinxing, and now they are busy looting, and they have even jumped out one after another, with all kinds of excuses, and the rest of the leaders of the peasant army are like this.

Li Zicheng, who was furious, couldn't take care of so much at all, seeing that no one was willing to go, thinking that Wu Sangui was only 30,000 soldiers, and his subordinates had as many as 100,000, which should be enough.

So he was forced to be helpless, Li Zicheng could only personally lead the 100,000 Dashun army loyal to him and set off on the Eastern Expedition.