On Chinese New Year's Eve this year, after Li Yuan drank several times the wine, he sighed to Pei Lin slightly drunk: "The two children of King Jin and King Qin have been in charge of the army for a long time, and they are instigated by scholars and generals, and they are no longer the original sons. ”

After Pei Lin heard this, he didn't know how to answer.

In the first month of the fourth year of Wude, Li Yuan set up a hunting field in the south of the capital, and the crown prince Li Jiancheng, the king of Jin Li Yin, the king of Qin Li Shimin, the king of Qi Li Yuanji, and the king of Song Li Zhiyun all went with him.

Li Yuan's intention was to alleviate the contradiction between the five brothers through this hunting, but after Li Jiancheng heard the order to hunt on horseback, his eyes flickered for a while.

Li Jiancheng has a horse, fat and strong, but likes to kick back with his legs after jumping up, Li Jiancheng handed this horse to Li Yin and said: "This horse runs very fast and can cross a stream a few zhang wide." The second brother is good at riding horses, so let's try it on it. ”

Li Yin rode this horse to chase the wild deer, this horse suddenly jumped up, if it was an ordinary person, just afraid that he had to be thrown off the horse, Li Yin jumped up, jumped a few steps away to stand, after the horse stood up, Li Yin rode on the horse again, so it happened three times in a row.

Li Yin turned his head to look at Xiao Yu nearby and said, "The prince intends to kill me with the help of this horse, but life and death are controlled by fate, can he hurt me anything?" ”

During the Central Plains War, Xiao Yu was sent to Li Yin's side to assist in military affairs, so the relationship between the two was relatively close.

However, Li Jiancheng's people heard this, so Li Jiancheng asked his concubine to frame Li Yin to Li Yuan and said: "The King of Jin claimed that God had given me an order, and he was about to let me go to the co-lord of the world, how could I die in vain!" ”

Li Yuan was very angry, first called Li Jiancheng and Li Yuanji, and then called Li Yin, reproaching him: "Whoever is the Son of Heaven, naturally there will be an order from heaven to him, you say that, do you want to seek the throne?" ”

Li Yin took off his crown, prostrated himself to the ground, and asked to hand him over to the law enforcement yamen for interrogation and confirmation, but Li Yuan was still angry.

When there was a report that the Turks were coming to intrude, Li Yuan changed his angry face and instead advised Li Yin to put on his crown, tie his belt, and discuss with him how to deal with the Turks.

It can be seen from what happened in the New Year's hunt that the relationship between the crown prince Li Jiancheng and the Jin king Li Yin is already on the same footing.

The situation changed so quickly, in addition to Li Yin's increased power and threat to the status of the East Palace, but also because of the changes in the situation in the world.

At this time, the north of the river is all owned by Datang, but the south of the river is not a cause for concern, so many people feel that it only takes another year or two for Datang to sweep away the ** and unify the eight wildernesses.

Without external contradictions, whether it is ordinary officials or Li Jiancheng, who is the crown prince, they all pay attention to the power struggle within the Tang Dynasty, so the contradictions between the princes will suddenly intensify.

In fact, on the third day of the first lunar month, Li Yuanji persuaded the crown prince Li Jiancheng to get rid of Li Yin, he said: "I should kill him with my own hands for my brother!" ”

On the night of the third day of the new year, when Li Yin followed Li Yuan to Li Yuanji's mansion, Li Yuanji ambushed the guards in the dormitory, preparing to assassinate Li Yin, but at the critical moment when he was ready to launch, Li Jiancheng couldn't bear to do fratricidal things, and hurriedly stopped Li Yuanji. Li Yuanji said angrily: "I'm thinking about my eldest brother, what's in it for me?" Don't regret it later! ”

In order to enhance his military strength, Li Jiancheng recruited more than 2,000 brave men from Chang'an and other places without authorization to serve as the guards of the East Palace, and let them be stationed in the Changlin Gate on the left and right sides of the East Palace, known as the Changlin Soldiers.

In addition, Li Jiancheng also secretly asked Youyu Hou to reach Dazhi to mobilize 300 brave and elite cavalry from Youzhou from Luo Yi, the king of Yan, and placed them in various markets east of the East Palace, preparing to use them to supplement the low-level officers who served as guards in the East Palace.

But I don't know who reported it, so Li Yuan called Li Jiancheng to rebuke him and exiled Da Zhi to the state. It wasn't until a few years later that it gradually spread that the mastermind who denounced seemed to have something to do with the Qin Palace......

However, Li Jiancheng did not stop enhancing his military strength, and when he saw that nothing could be done, he privately asked his henchman Yang Wengan, the governor of the prefecture, to recruit warriors and send them to Chang'an.

In March, Li Yuan prepared to go to Renzhi Palace to enjoy the spring scenery, and ordered Li Jiancheng to stay in the capital Chang'an, and Li Yin and Li Yuanji accompanied him.

Li Yuanji and Li Jiancheng suggested taking the opportunity to plot against Li Yin, and he said: "Whether our plan is safe or in danger, we must decide this year." ”

After thinking for a long time, Li Jiancheng instructed Lang General Er Zhuhuan and Captain Qiao Gongshan to give armor to Yang Wengan, intending to let Yang Wengan send a team of men and horses to pretend to be bandits and attack Li Yin near Renzhi Palace.

However, when Qiao Gongshan and Er Zhuhuan had just left Chang'an, they met Song Zhengben, who was dressed as a scribe, when they were resting in the middle of the road.

Qiao Gongshan and Er Zhuhuan knew that Song Zhengben was a person from Tiance Mansion, and immediately sent someone to arrest him, but Song Zhengben glanced at the few strong men who came with him, and the strong men opened the several boxes they carried, and they were full of gold, silver and jewelry.

Qiao Gongshan took out a field wedge from the box, and saw that it was a thousand acres of fertile land on Chang'an, which was a thing that was difficult to buy, and his breathing immediately became heavy, "Say, what does King Jin want our brothers to do?" ”

Song Zhengben smiled, in the past few years since the Li family became the main Guanzhong, Li Yin often went out to fight, but Song Zhengben was often left in Chang'an to preside over the overall situation, and the hundred officials of Chang'an, whether it was the princes and ministers, or the characters of Qiao Gongshan and Er Zhuhuan, he knew everything about them.

Song Zhengben said: "What King Jin wants you to do is very simple, and after the thing is completed, there will be another reward!" Then, he told Qiao Gongshan and Er Zhuhuan about the plan.

Qiao Gongshan and Er Zhuhuan glanced at each other, and then nodded together, which was considered to be agreed, Er Zhuhuan gritted his teeth and said: "Yang Wengan, this kid has no virtue and no talent, but he was entrusted by the prince to be reused, and our brother has served the East Palace for many years, but he has not been promoted, since this is the case, don't blame our brother for not talking about morality, Mr. Song rest assured, we will do this for King Jin!" ”

Song Zhengben nodded and rode away.

When Qiao Gongshan and Er Zhuhuan came to Fengzhou, they stopped advancing, and then played to Li Yuan, accusing the prince Li Jiancheng of instructing Yang Wengan to rebel, so that he could echo with himself inside and outside, in addition, there was also a Ningzhou man Du Fengju also went to Renzhi Palace to tell about the situation.