In spite of the danger of detection, the young girl insisted upon remaining in the village during its occupation by the Germans; happily they did not recognize her as the girl who raised the drawbridge against them or she would have been shot at once. Near the factory where she worked was a shed covering a subterranean passage leading to the phosphate mine. She succeeded in concealing the entrance trap to this passage by means of some large tuns and bagging. During the night she managed to conceal in this passage no less than seventeen French soldiers who had been somehow left in the retreat from the towns of Mons and Charleroi. Not only did she succeed in keeping these men hidden, but she managed to secure for them both food and peasant clothing, and aided them to get away to the French lines to the south. Sixteen of these men succeeded in getting away, but one dark night in a furious rainstorm while she was piloting the seventeenth to a cross-country lane, she was detected by a sentry, who dragged both of them before the German lieutenant. In the examination before the Commandant at headquarters she defiantly confessed to having aided the French soldiers to escape, crying out, "Yes, I did it for France, and I shall do it again and again, if I am able. Do with me what you will. I am an orphan, I have but one mother, France! For her, my life!" The Commandant promptly sentenced her to be shot. She was taken out of the room into the courtyard, where they placed her against the wall facing the firing squad, her arms tied behind her. Suddenly French artillery opened upon the German lines at Eclusier. Before the officer could give the word to fire upon the brave girl, a shell fell in the courtyard, and in the confusion, wonderful to relate, she escaped. While she had been assisting her fellow countrymen to escape the French had crept up, and routed the invaders from their position in the little town. So Marcelle once more fled to the subterranean passage, and there took up her quarters, rendering great service to the army, through her knowledge of the surrounding country.