Co Loa Citadel

Thuy is the best folktale I have ever heard since I was a child. It is involved in the important and true historical event in Vietnam. An Duong Vuong - a king of Au Lac nation, who built Co Loa citadel, was helped by saint Kim Qui. Then, the saint took him one of his claws to make a crossbow to protect the citadel from enemies. Because the crossbow was very magic, every arrow was shot from it to hit a thousand of enemies at the same time. After a long time, Cao Lo, who was one of the mandarin’s household