Twilight in the Forbidden City describes the twilight period of Qing dynasty by Reginald F. Johnston, who was the Qing Emperor Pu Yi's teacher. The writer describes his life in China on the special historical and political background. From the view of a foreigner, the writer narrates his experience in the court struggle and his function as a conciliator, as well as his deep friendship with Pu Yi, the last Emperor in China. 《紫禁城的黄昏》一书是帝师庄士敦对清朝两百多年统治的"黄昏时期"的记述。作者将其在华经历放到当时中国政治文化的大背景中，从一个外国人的特殊视角，怀着对中国和中国人民的诚挚情感详细描述了"清廷"内部的明争暗斗、自己的随机应变、居中调解以及他与溥仪之间的深厚交谊。