Introduction to the Legend of the Orb: There is an orb in the center of the green screen wall. It is guarded by ninety-nine dragons and cannot be approached by ordinary people. There was a popular saying at that time: "A hundred heads and a thousand loads of firewood can bring down the pearl." After hearing this, a woodcutter outside the city thought to himself that I was a woodcutter and it would not be a problem to get a thousand loads of firewood, but when Where can I get hundreds of heads? One day, a funeral procession passed by the mountainside. The filial son followed behind the coffin, kowtowing every few steps. The woodcutter learned how to get the pearl from the filial son's kowtow. A few days later, the woodcutter used a skewer to carry a load of firewood to the green screen wall. Seeing no one around, he lit the "load of firewood" and kowtowed a hundred times to the green screen wall while lying on the ground. The ninety-nine dragons were so smoked that their eyes watered. When they saw the "hundred heads", they all rushed to receive the "gift" and forgot to guard the orb. The woodcutter took the opportunity to take the orb away. After the two loads of firewood were burned, the ninety-nine dragons opened their eyes and saw that the orb was gone. They were all dumbfounded and furious to death. Later, people could only see the ninety-nine dragons dying of anger on the green shadow wall. There was always a big hole in the middle of the wall where the orbs were embedded.