Why did Wu Yong say to Li Kui jy: "This is a great event! We rushed back to the cottage in the starry night, arranged traps and prepared the organs to meet Lu Junyi who will come sooner or later. " ?

Because Wu Yong pretended to be a fortune-teller, he calculated a divination for Lu Junyi, saying that there would be a mass annihilation within one hundred days, and pointed out the place where he could take refuge. But to go to that place, you have to pass by the water margin. Wu Yong also figured out that he would take refuge in Lu Junyi's character, so he arranged a trap, caught Lu Junyi and persuaded him to go to Liangshan.