entrance into the large sewer was barred by planks of solid, seasoned oak six inches thick. The chisel and the penknives were worn down to the handles. For thirty-nine nights these men had worked at the highest possible pitch under indescribable conditions. There was not an inch of steel left to cut with or an ounce of reserved strength to go on farther. Despairingly, the party broke up, put away the kits which they had prepared for the march and once again Rose and Hamilton were left alone by their discouraged comrades. After a day's rest, these two decided to start another tunnel in the north corner of the cellar away from the canal. This tunnel would come out close to the sentry beat of the guards, but Rose had noticed that this beat was nearly twenty yards long and it was decided that in the dark there would be a fair chance of slipping through unseen. Once again Rose and Hamilton started on this new task alone. They had finally obtained another chisel and this was the only tool which they had. Once more Rose did the digging. Hamilton would fan with all his strength and Rose would work until he felt his senses going, then he would crawl back into the cellar and rest and get his breath. The earth was dragged out in an old wooden cuspidor which they had smuggled down from their room and Hamilton would hide this under a pile of straw in the cellar. The tunnel became longer and longer, but Rose was nearly at the end of his strength. It was absolutely impossible to breathe the fetid air in the farther end of the tunnel, nor could Hamilton alone fan any fresh air to him. Once again, and with great difficulty, a new party of ten was organized. These worked in shifts--one man dug and two or three fanned the air through the tunnel with their hats, another man dragged the earth into the cellar and a fifth kept watch. The first five would work until exhausted and then their places would be taken by the second shift. They finally decided to work also by day and now the digging went on without interruption every minute of the twenty-four hours. Finally, the little band of exhausted workers had gone nearly fifty feet underground. They were on the point of breaking down from absolute exhaustion. The night-shift would come out into Rat Hell and be too tired and dazed to find their way out and would have to be looked after in the dark and led back to the rooms above like little children.