was written in lemon juice. This was invisible until exposed to heat, when the writing would show.
Colonel Rose was placed in the topmost room of the eastern wing. This was named Upper Gettysburg. From there he saw workmen entering a sewer in the middle of a street which led to the canal lying at the foot of the hill on which the prison stood. He at once decided to tunnel into this sewer and crawl through that into the canal which was beyond the line of the guards. With this plan in view, he began to explore the prison. One dark afternoon he managed to make his way down through the rooms to one of the dungeons underneath, which was known as Rat Hell. This had been used as a dead-house and was fairly swarming with rats. As he was fumbling around there he suddenly heard a noise and in a minute another man came in. Each thought the other was a guard, but finally it turned out that the intruder was a fellow-prisoner, a Kentucky major named Hamilton. This Major and Rose at once became fast friends and immediately planned a tunnel from a corner of Rat Hell after securing a broken shovel and two kitchen knives. They had no more than begun this, however, before alterations were made in the prison which cut them off from this dungeon. By this time the other prisoners had noticed the midnight visits of Rose and Hamilton as well as their constant conferences together and it was buzzed around everywhere that there was a plot on hand to break out of Libby. For fear of spies or traitors, Rose decided to organize a company of the most reliable men and plan a dash out through one of the walls and the overpowering of the guards. Seventy-two men were sworn in and everything was arranged for the dash for freedom one cloudy night. The little band had all gathered in Rat Hell and sentries had been placed at the floor opening into the kitchen above. Suddenly footsteps were heard and the signal was given that the guards were making a tour of inspection of the prison. In perfect silence and with the utmost swiftness, each man went up the rope-ladder to the floor above and stole into his bed. Rose was the last man up. He managed to reach the kitchen and hide his rope-ladder about ten seconds before the officer of the guard thrust his lantern into the door of the lowest sleeping chamber. Rose had no time to lie down, but with great presence of mind sat at a table and stuck an old pipe into his mouth and nodded his head as if he had gone to sleep while sitting up and smoking. The guard stared at him for a moment and passed on.
The next day the leaders decided that some news of the attempt must have reached the authorities outside to account for this sudden and unusual visit. It was decided to raise the numbers and make an immediate attempt. The band was increased from seventy-two to four hundred and twenty. With the increase in numbers, however, there seemed to be a decrease of courage. Many of the officers feared that it was a hopeless plan for a crowd of unarmed men to break through a ring of armed guards and that such an attempt would merely arouse the town and they would be hemmed in, driven back and shot down in crowds inside the prison walls. Finally a vote was taken and it was decided to abandon this plan.
Once more Rose and Hamilton found themselves the only two left who were absolutely resolved on an escape. After talking the matter over, they decided to begin another tunnel. This time they had only an old jack-knife and a chisel to work with and they could only work between ten at night and four in the morning. They started back of the kitchen fireplace and there removed twelve bricks and dug a tunnel down to Rat Hell so that they could reach this base without disturbing any other prisoners and without being exposed to detection by the guard. One would work and the other would watch. At dawn each day the bricks were replaced and the cracks filled in with soot. They had no idea of direction and this tunnel was nearly the death of Rose. The digging was done by him while Major Hamilton would fan air to him with his hat, but so foul was the air below ground that bits of candle which they had stolen from the hospital would go out at a distance of only four feet from the cellar wall. In spite of this terrible atmosphere, Rose dug his tunnel clear down to the canal, but unfortunately went under the canal and the water rushed in and he had a narrow escape from being drowned. By this time both men were so nearly exhausted that they decided to take in helpers again. Thirteen men were chosen to work with them and were all sworn to secrecy. The flooded passage was plugged and a fresh one started in the direction of a small sewer which ran from a corner of the prison down to the main sewer beyond. Night after night in the mud and stench and reek underground they dug their tunnel. At last they reached the small sewer only to find that it was lined with wood. The only cutting tools they had were a few small pen-knives. With these they slowly whittled a hole through the wooden lining and the fourteen men were all in high hopes of an escape. The night came when only a few hours of work would be necessary to make a hole large enough to enter the small sewer. It was then hoped they could all crawl from this into the larger one and down into the canal safe past the guards. Once again they were all grouped shivering at the entrance to the tunnel, waiting for the man who was working inside to pass the word back that the opening was made. Suddenly the news came back that the 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.
Rose, in spite of all that he had been through, was the strongest of the lot and could work after every other man had fallen out. It was still necessary for the tunnel to be carried five feet further to clear the wall. Once again a sickening series of accidents and surprises occurred. The day-shift always ran the risk of being missed at roll-call, which was held every morning and afternoon. Usually this was got around by repeating—one man running from the end of the line behind the backs of his comrades and answering the name of the missing man. On one occasion, however, there were two missing and a search was at once begun which might have resulted in finding the entrance to the tunnel. There was just time to pull these two up out of the dark and brush off the telltale dirt from their hands and clothes and tell them to lie down and play sick. Neither one of them needed to do much pretending and they both showed such signs of breakdown that the prison inspector came near sending them to the hospital, which would also have delayed operations. The next day, while one man was inside the tunnel, a party of guards entered Rat Hell and remained there so long that it was evident they must have suspected that something was going on. Colonel Rose called his band together for a conference. He believed that two days of solid work would finish the tunnel. The rest of the men, however, pleaded for time. They were half sick, wholly exhausted and discouraged. Rose decided that he would risk no further delay and that the last two days' work should be entrusted to no one except himself. The next day was Sunday and the cellar was usually not inspected on that day. He posted his fanners and sentries and at early dawn crawled into the tunnel and worked all day long and far