A little before dark the next evening we again started, and now had good, comfortable cars,--the best we had enjoyed on the route. But we only ran a short distance to the junction, where we had to leave them and wait the arrival of another train. Here was the best chance of escape we had yet found. The night was pitchy dark, and so cold that the guards built a great fire on the border of a strip of woodland, and allowed us to help in gathering withered sticks to replenish it. They scarcely appeared to notice us, and all that was necessary for escape was to give the word and run for it. Nothing held us but the absolute confidence of a speedy exchange, and, depending upon that, the golden opportunity was neglected. Of course, the perils and hardships of wandering through the Virginia mountains in the depth of winter would have been severe, but the start would have been mere child's play. Oh! how bitterly we afterwards regretted that we had not darted into the depths of the forest and sought to effect our own exchange! CHAPTER XX. LIBBY AND CASTLE THUNDER. In a few hours the train for which we waited arrived, and, passing onward without further noticeable events, long before morning we were in Richmond. There was the same intense and piercing cold which had been the main element in our suffering during this journey, but the sky was clear, and the rebel capital was distinctly seen in the sparkling moonlight. Everything looked grim and silent through the frosty air, and our teeth chattered fast and loud as we walked up a street of the sleeping city. But the sergeant in command of our party did not know what to do with us. We hoped that some arrangements had been made for forwarding us directly to City Point, the place of exchange, so that we might that very day behold once more the stars and stripes. Yet we knew it was more probable that some detention would occur. The sergeant left us where we were while he started in search of the provost-marshal's office for instructions. We endeavored to shelter ourselves as best we could from the unbearable cold, which really threatened to prove fatal. Two pieces of ragged carpet were all the protection we had, in addition to our well-worn summer clothing, and we spread these over our heads as we huddled together in a solid mass in the angle of a brick wall. It was astonishing what a relief this afforded,--especially to those who were in the inside of the _pack_, where I happened to be. Here we shivered till the sergeant returned. He had found the headquarters of the prison department and conducted us thither.