Jinghe Loong King thinks that he is the Loong God in charge of the rain. How could yuan Shoucheng know the rain time in the sky before himself? He must have won this gambling match. Who knows just returned to Jinghe Shuifu, Tiangong ordered the rain to come to Chang'an tomorrow. The time of the rain is exactly the same as that of Yuan Shoucheng. Although the Loong King was shocked and sighed that there was such a capable person who knew the world, he was very strong and could not easily give up. His competitive mind made him dizzy, and he decided to change the rainfall time in private and cut off the rainfall.

The next day, the Loong King delayed to release the cloud， It thundered at wu(A way of timing in ancient China) , but it didn't rain at that time. It stopped raining at shen(A way of timing in ancient China) . It rained three feet and forty, changed an hour, and got three inches and eight rain(A way of measurement in ancient China).

After the rain, the loong king turned into a human being. He went to Yuan Shoucheng's divination stall and smashed the stall in one breath. He asked yuan Shoucheng to get out of Chang'an city immediately. But yuan Shoucheng just quietly watched the Loong King smash, sneered and said, "my little divination stall is not worth money, I'm afraid someone has committed a crime of death, but I don't know. I know you. You are not a scholar. You are the Loong King of Jinghe. When you change the time of rains, you reduce the rainfall, and you have made the mistake of heaven. You're going to be killed tomorrow!"

Jinghe Loong King was so flustered that he regretted that he fell to his knees and begged yuan Shoucheng for help.

Yuan Shoucheng sighed, " Tomorrow at the third quarter of wu(A way of timing in ancient China) , you should be beheaded by Wei Zheng, who is the Prime Minister of the dynasty. If you can ask for personal affection from the king of Tang Dynasty, there is still a way to live."

After thanking yuan Shoucheng, Jinghe Loong King hurried to the palace and waited until midnight. After Li Shimin, the king of Tang, had a dream, Loong King dived into Li Shimin's dream and said, "help me, your majesty!"

King Tang was surprised: "who are you? How can I help you? "

"I am the Loong king of Jing River outside Chang'an City," said the Loong King. "I wiil be beheaded by Wei Zheng, your Majesty's wise minister, because of my violation of the rule of heaven. So I come to pray and ask your majesty to save me."

The king of Tang saw that he begged and was compassionate, so he agreed: "I can save you. Don't worry. "

The Loong King is relieved.

Li Shimin, king of the Tang Dynasty, woke up from his dream and thought about the entrustment of the Loong King. He thought about it and decided to keep Wei Zheng by his side for one day tomorrow. If he didn't leave the palace for half a step, he should be able to save the Loong King.

The next day, towards noon, Li Shimin, king of Tang, called Wei Zheng to play chess. At noon, Wei Zheng fell asleep. The king of Tang was very happy and thought to himself, "if I don't wake him up, when he wakes up, it's past noon, he can't kill Loong King.". The king of Tang sat looking at Wei Zheng. He saw that Wei Zheng was sleeping soundly and his clothes were soaked with sweat. After a while, Wei Zheng cried out from his sleep, "kill!" After shouting, woke up.

"Who do you kill in your sleep?" asked the king of Tang Wei Zheng said, "the Jade Emperor told me to kill the Loong king of Jinghe river!"

"Did you kill it?" Tang asked Wei Zheng said, "kill!"

The king said, "how are you going to kill when you fall asleep?" Wei Zheng said, "The head od Loong king is hanging on the high pole of the Meridian Gate! If you don't believe me, let's take a look. "

They went to the Meridian Gate, and there was indeed a blood head hanging on the high pole, which was believed by the king of Tang.