On the Ujumqin grassland of Xilin Gol League, Qi Muge, a 17-year-old horse herding girl, picked up a blood-stained Morin Qin in a snowstorm. There was half a burnt Mongolian-Chinese bilingual "Declaration of Anti-Japanese and National Salvation" hidden in the piano case. When she plucked the strings with her frozen fingers, the sound of horse hooves from the Japanese and puppet army's "group tribes" driving away the herdsmen could be heard in the distance.