Zhao Zheng, king of Qin, attached great importance to Liao Wei and was bent on unifying the Central Plains and constantly attacking other countries. He broke up the alliance between Yan and Zhao, which cost Yan several cities. Yan Wangdan originally stayed in Qin as a hostage. When he saw that Zheng was determined to annex other countries and took the land of Yan, he secretly fled back to Yan. He hated Qin and was bent on revenge for Yan. But he didn't train, and he didn't intend to contact the vassals against Qin, but pinned the fate of Yan on the assassin. He took out all his possessions and looked for someone who could stab the king of Qin. Later, Taizi Dan found a very capable soldier named Jing Ke. In 230 BC, Qin destroyed Korea; Two years later, Jin Wang, the general of Qin State, occupied Handan, the capital of Zhao State, and marched northward to approach Yan State. Yan Taizi Dan was in a hurry and went to Jing Ke. Ask him to assassinate the king of Qin. Jing Ke said, "Yes, but if we want to get close to the king of Qin, we must first convince him that we want to make peace with him. It is said that the king of Qin had long wanted the most fertile land in Yan State (in Zhuoxian County, Hebei Province). Fan, a general of the Qin Dynasty, was exiled to the State of Yan, and the king of Qin offered a reward for his capture. If I can bring the head of General Fan and the map of Du Kang to the King of Qin, he will certainly meet me. So I can deal with him. "
Knowing that Prince Taizi Dan couldn't stand it, Jing Ke went to Fan privately and said, "I have an idea that can help Yan eliminate disasters and avenge the general, but I just can't say it." Fan Yuqi quickly said: "What idea, you are quick to say!" Jing Ke said, "I decided to assassinate him for fear that I would never see the King of Qin again. Now the king of Qin has offered a reward for your arrest. If I can give him your headband, he will definitely see me. " Van Yuqi said, "OK, just take it!" With that, he drew his sword and committed suicide.
Prince Taizi Dan prepared a sharp dagger in advance and asked craftsmen to cook it with poison. Anyone who is stabbed with a drop of blood by this dagger will die immediately. He gave this dagger to Jing Ke as a weapon to assassinate, and sent Qin Wuyang, a warrior who killed at the age of thirteen, as Jing Ke's deputy.
In 227 BC, Jing Ke set out from Yan State for Xianyang. Prince Taizi Dan and several guests put on white hats and went to Yishui (now Yixian County, Hebei Province) to bid farewell. When he left, Jing Ke sang a song for everyone: "The wind is rustling and the water is cold, and the strong man is gone forever." Jing Ke jumped on the bus and left without looking back.
Jing Ke arrived in Xianyang. Zheng was very happy when he heard that Yan sent messengers to give Fan his head and a map of Du Kang. He immediately put on his royal robes and met Jing Ke in Xianyang Palace. The ceremony of meeting the audience began. Jing Ke took a box with a picture of Fan in his hand, and Qin Wuyang took a map of Du Kang in his hand and stepped onto the steps of the Qin Dynasty step by step. When Qin Wuyang saw the majestic posture of Qin State, he couldn't help shivering with fear. The guards around the king of Qin saw it and shouted, "Why did the emissary change his face?" Jing Ke looked back and saw Qin Wuyang's face was black and blue. He smiled and said to the king of Qin, "Rude people are afraid because they have never seen the majesty of the king. Please forgive him. " After that, Qin Wangzheng was a little skeptical and said to Jing Ke, "Tell Qin Wuyang to give you the map and come up by himself." Jing Ke took the map from Qin Wuyang and presented it to the king of Qin with a affairs box. Qin opened the affairs box, and it was Fan's head. Qin Wangzheng also asked Jing Ke to bring the map. Jing Ke slowly opened a roll of maps. When all the maps were opened, a dagger that Jing Ke had rolled in the map in advance was exposed. When Qin saw it, he jumped up in shock. Jing Ke hurriedly grabbed the dagger, left hand pulls the sleeve of Qin, and right hand plunges the dagger into Qin's chest. Qin stepped back hard and broke his sleeve. Jing Ke went after him with a dagger. Seeing that he couldn't run any further, Qin ran around the big copper pillar in the hall. Jing Ke pressed. The two men wandered around like merry-go-round. Although there are many officials around, they are unarmed; According to the rules of the state of Qin, the samurai under the steps are not allowed to go to the temple without the order of the king of Qin. Everyone was so anxious that no one called the samurai under the stage. Among these officials, there is a doctor who serves Qin, named Xia Wuxie. He used his quick wits, grabbed the medicine bag in his hand and threw it at Jing Ke. Jing Ke raised his hand and the medicine bag flew to one side. Blink of an eye, Qin stepped forward, pulled out his sword and cut off Jing Ke's left leg. Jing Ke couldn't stand and fell to the ground. He picked up a dagger and threw it at the king of Qin. Qin only flashed to the right, and the dagger flew past his ear, hitting the copper pillar and popping out of Mars with a bang. Jing Ke, the king of Qin, had no weapons in his hand, so he went to power and cut several swords at Jing Ke. Jing Ke was shot with eight swords. Knowing that he had failed, he said with a wry smile, "I didn't start earlier." I originally wanted to force you to return to Yan. " At that time, the attendants warriors have arrived at the temple together, ending Jing Ke's life.