This book is based on "History of Liao" and uses literary techniques to describe the history of the Liao generation from its rise to its decline. It focuses on the story of Yelu Yanxi, the last emperor of the Liao Dynasty, who was incompetent, treacherous, and prone to civil strife. Wanyan Aguda, the leader of the Jurchen tribe, took the opportunity to launch an attack, continued to grow in strength, united with the Song Dynasty, and destroyed the Liao Dynasty. With fluent language and rigorous historical examination, this book is an attractive and popular historical reading.