Private Donahue had been fearing that he would hear that word. But now he recognized it as spoken by an American voice. "I am an American!" he cried joyfully, springing to his feet. Soon he was sleeping inside his own lines, under two old potato sacks. At dawn he ate a good breakfast at the field kitchen, then reported at headquarters. He had kept his eyes open during his seven days' journey through the German lines, and had some important information to give at French headquarters. But many times the captives had no opportunity to escape before they were locked in the prison camp somewhere in Germany. Then it demanded every bit of Yankee ingenuity to get away. One of the most elaborate attempts, involving the escape of a great number of men, is told in the following story. There were seventy Americans among the prisoners in a German camp at Villingen in Baden. Not all had arrived at the same time. Some were newcomers, others unfortunately had been detained there for more than a year. The prison consisted of a barracks for the men, surrounded by a large stretch of land, all inclosed with two rows of high wire fencing, completely charged with electricity. The second fence, which was six or eight feet away from the first, was very strong and bent inward toward the top, so that if a prisoner by any possible means succeeded in getting over the inner fence, he surely could not climb the outer. Moreover, guards were kept on watch between the fences, and outside, sentinels were stationed about thirty yards apart. It seemed impossible for the prisoners to get away by daylight, and at night the barracks with their iron-barred windows were closely guarded. The treatment of the prisoners, especially of those who had made any attempts to escape, was shameful and often cruel. The food, in general, consisted of sour black bread, soup made largely from tree leaves, and some sort of drink made from acorns and called coffee. Needless to say, the prisoners were half starved. Indeed, two American girls who were in Berne, Switzerland, working among the released prisoners, in a letter to America showed in what an awful condition they found some of the men. Their letter read:-- "We have gone to the station three times at four o'clock in the morning to help feed the English soldiers who were on their way home after being exchanged for German prisoners. We had the privilege of giving some of them the first white bread they had had in four years. The men who had been kept working behind the lines were in a pitiable condition. One such man happened to be at my table,--for they are taken off the train for two hours, given hot tea and roast beef and ham sandwiches,--and the poor fellow began taking sandwiches, eating a few bites, and stowing the rest feverishly away in his pocket. He couldn't realize that he was in a place where he would be fed."