Silver Needles Help Save the World in the Spring and Autumn Period

It was mid-spring in the thirty-first year of Hongwu's reign in the Ming Dynasty. It is located in Meijing Town, Wuxi County, Changzhou Prefecture in the south. The sky is still dark blue, and a ray of gray has just emerged on the ridge to the east. Huishan is hidden in the morning mist, like a dormant giant beast, quietly watching the land. The dew is thick on the bluestone road in Meijing Town, and you can hear a subtle "squeaking" sound when you step on it. There is a three-entry courtyard at the east end of the town. The black door is slightly damp from the night dew. There is a plaque hanging above the lintel with the four characters "Su's Medical Center" written on it. It was written by the magistrate of Wuxi in the fifteenth year of Hongwu. Sixteen years later, the mottled black paint revealed the wood grain underneath, but no one dared to touch it - it was the face of the Su family and the glory of Meijing Town.