One night in mid-September 1965, the heat was still lingering in the three towns of Wuhan, known as one of my country's "three great furnaces." Standing on the majestic Wuhan Yangtze River Bridge, the river breeze blowing against your face is refreshing and cool, which is very pleasant. It's almost midnight, and the city, which has been noisy all day, gradually falls asleep, and the stars in the sky and the lights on the river are slowly shrouded in mist. But who could have imagined that on this peaceful night, undercurrents were surging and danger was approaching!