The tenth son of Yingzheng disappeared mysteriously in the palace in the 20th year of Qin Wangzheng. Hearing the news, Yingzheng was furious. He cleaned up the palace, punished eunuchs, maids, and thousands of guards. …Ten years later. On the bank of Lanchi, Yingzheng was attacked. In Guanzhong Dasuo, there were 20 days and 1,600 meters and 600 stones. At the pinnacle of power in Daqin.