In the autumn of the seventeenth year of Kaiyuan of the Tang Dynasty, barbarians attacked Wenzhou, and the county guard was panicked for a while. Yang Shi, the great priest of the White Horse people, led 500 priests and a thousand young cavalry troops to come to the rescue. He persuaded Qingshuang of the Fox tribe to help, activated the White Horse people sacrifice array, summoned the divine dragons Qinglong and Mo Yuan, defeated the barbarians, and protected Wenzhou from the destruction of all living beings...
