 Twelve of them were enslaved as agricultural laborers, while Wu Rui, the only one still young, was castrated and became a eunuch attendant at the Vietnamese Imperial Palace in Thang Long.After years of service, upon the death of the Vietnamese ruler in 1497, he was promoted to a military position in northern Vietnam.There, a soldier told him of an escape route back to China through which Wu Rui then escaped to Longzhou.