My name is Ma Shouyi, a native of Pingliang in the northwest. I have been working with loess since I was a child. I have been in more than thirty pits in my life, dug through Han tombs, dug out Xixia tombs, seen living and dead people, and also seen things that I couldn't explain clearly. Later someone asked me, what am I most afraid of in this industry? I took a puff of dry cigarette and thought for a long time and said: What scares me most is that when I get out of the pit, I find more footprints on the ground. ——This is a record of the experiences of a gold-digger in the northwest.