I think there are two reasons for this: First, the main characters in the book are the stuff of legends. They have not only had lives with intriguing twists of fate, but some of them have also been close to the centers of power in mainland China.
它能緊扣讀者的心弦，我想有兩個原因：第一，書中的主角都具有傳奇性，他們不但有離奇曲折的一生，而且有的更捲入中國權力中心的漩渦之中。