There is no short story called "Attack on the Mill" by Émile Zola. Zola is famous for his naturalism in literature, and he wrote many novels, including "Germinal" and "Nana," which are set in the world of coal mines and prostitution respectively. However, "Attack on the Mill" is not one of his works.
It's possible you are thinking of a different author or a different story title. Could you please provide more context or information about the story you are looking for?