My Mother-in-Law (6)

I had returned to work after the summer shut down, we were swamped with orders and had to work long hours.  The factory had closed for two weeks at the beginning of June, we had the long hot summer to work through.  One night about eight o’clock I could smell a strange odor, a chemical smell.  Suddenly from near the paint line there was a large bright orange flash and fire ball.  I was knocked backwards from the explosion, I was stunned.  The building filled with thick black smoke, it was impossible to see any farther than