Treason By The Book : Traitors, Conspirators and Guardians of an Emperor

In 1728 a stranger handed a letter to Governor Yue calling on him to lead a rebellion against the Manchu rulers of China. Feigning agreement, he learnt the details of the plot and immediately informed the Emperor, Yongzheng. The ringleaders were captured with ease, forced to recant and, to the confusion and outrage of the public, spared.
Drawing on an enormous wealth of documentary evidence - over a hundred and fifty secret documents between the Emperor and his agents are stored in Chinese