The Five Dynasties and Ten Kingdoms were in chaos. The Song Emperor of the Southern Dynasties was assassinated, and the empire was about to collapse. The cavalry of the Northern Zhou Dynasty pressed on the border, watching with eager eyes; the secret envoy of the Southern Tang Dynasty knocked on the door at night and offered the blood-stained jade seal of the country. What he asked for was not the restoration of the country, but a chance to retreat - the condition was to hand over the head of the exiled prince.
