In the second year of Yongxi (the fifth year of Datong in the Southern Liang Dynasty, 533 AD), the contradiction between the Northern Wei Emperor Yuan Xiu and Gao Huan became more and more acute. In order to better balance Gao Huan, Yuan Xiu prepared to win over He Bayue, who was in the middle of the pass.
He Bayue is not as simple-minded as the Erzhu clan, he did not show favor to Yuan Xiu easily, and he was also ready to observe Gao Huan more. So He Batyue sent Xingtai Lang Feng Jing to Jinyang to meet Gao Huan, Gao Huan was very happy when he heard that He Batyue's envoy came, and hurriedly said to Feng Jing: "Does He Batyue miss me?" Then he warmly entertained Feng Jing, and made a blood alliance with Feng Jing, agreeing to become a brother with He Bayue. After Feng Jing went back, he informed He Batyue of the information he had, and said to He Batyue: "Gao Huan is more than treacherous, but his sincerity is not enough, and what he says cannot be trusted. ”
During the previous change in Heyin, Gao Huan had persuaded Er Zhurong to call the emperor unsuccessfully, and He Bayue said to Er Zhurong at that time to kill Gao Huan to block the ** whirlpool, so the two were also suspicious. Now that Gao Huan has gained power, He Bayue is temporarily unable to compete with him, so it is difficult to deal with Gao Huan. At this time, Sima Yuwentai volunteered to send an envoy to Jinyang in order to observe how Gao Huan behaved. Since following He Batyue, Yuwentai has been appreciated by He Batyue for his outstanding ability. After He Batyue was appointed as the Guanxi Daxingtai, He Batyue promoted Yuwentai to be the left of the Xingtai, the leader of the Sima, and the Jiasan cavalry attendant, all of which were appointed to him. Now that Yuwentai volunteered to go to see Gao Huan, He Bayue was naturally very happy.
After Yuwentai arrived in Jinyang, he had no nervousness in the face of Gao Huan, and promised to be agile and eloquent. This made Gao Huan very surprised, and Yu Wentai's appearance also surprised Gao Huan, so he said: "It's very sighty here." All this made Gao Huan want to keep Yuwentai for his own use, so he insisted on keeping Yuwentai, but Yuwentai insisted on going back to his life, and Gao Huan had to let him leave. But it didn't take long for Gao Huan to regret letting Yuwentai go, and hurriedly sent someone to chase after him on a stagecoach, but he didn't catch up until Tongguan, so he had to return. Gao Huan may not have thought that letting Yuwentai go this time would completely change the fate of both parties.
After Yu Wentai returned to Chang'an, he not only reported what he had seen and heard to He Batyue, but also analyzed the current situation to He Batyue. Yu Wentai believed: "Gao Huan is a person who is never willing to be a subordinate, and the reason why he has not usurped the throne is precisely because he is afraid of your brothers. As for Hou Mo Chen Yue and the others, they are just some mediocre people with good luck, and Gao Huan has no suspicion of them. As long as these people prepare early, it is not difficult to get it. ”
Then Yuwentai analyzed to He Bayue what to do next, and he felt: "Now there are more than 10,000 cavalry who are good at riding and archery in the head clan of Hexi Feiye, and there are more than 3,000 elite soldiers in Xiazhou. At this time, if you approach Longdi with your army, hold the key points of the place, use your might to deter them, and at the same time appease them with favors, you can ambush their soldiers and horses and strengthen the strength of our army. After that, as long as you go to the west to the Mu Di and Qiang tribes, and the north to comfort the people outside the desert, you can wave the army back to Chang'an and assist the Wei royal family, which is enough to compare with the actions of Qi Huan Gong and Jin Wen Gong to pacify the Zhou family and dominate the world! ”
After listening to Yuwentai's analysis, He Bayue was very happy and immediately decided to cooperate with Yuan Xiu. So he sent Yuwentai to Luoyang to ask Yuan Xiu for instructions on relevant matters and secretly state the relevant situation. Yuan Xiu was very happy when he heard this, and crowned Yuwentai as the general of Wuwei and asked him to go back and report to He Bayue. In August, Yuan Xiu appointed He Batyue as the governor of Yong, Hua and other 20 states and the history of Yongzhou assassination, and cut the flesh in front of his heart, took out some blood, and sent an envoy to He Batyue.
After making an alliance with Yuan Xiu, He Bayue led his troops and horses to the west and stationed them in Pingliang in the name of herding horses. Seeing that He Bayue's troops were in full swing, Hu Ba Mi Otu, Sudouling Yili, and Fei Yetou's Wan Qi Shou Luogan, Tiele Hulu Shamen and others all chose to surrender and depend, and only Cao Ni was still attached to Gao Huan. Subsequently, the assassins of Qin, Southern Qin, He, and Wei gathered together in Pingliang to accept the command and dispatch of He Bayue.
Because of the dangerous geographical location of Xiazhou, He Batyue wanted to find an excellent assassin to guard the town, and everyone recommended Yuwentai, although He Batyue couldn't bear Yuwentai to leave him, but after repeated weighing, he finally wrote to Yuan Xiu and asked to appoint Yuwentai as the assassin of Xiazhou. He Batyue would not have thought that not long after Yuwentai left his side, he would usher in doom.