s, disgusted with the perpetual
attempts to escape, moved the Dead Line out forty feet from the Stockade;
but this restricted our room greatly, since the number of prisoners in
the pen had now risen to about six thousand, and, besides, it offered
little additional protection against tunneling.

It was not much more difficult to dig fifty feet than it had been to dig
thirty feet. Davis soon realized this, and put the Dead Line back to
twenty feet. His next device was a much more sensible one. A crowd of
one hundred and fifty negros dug a trench twenty feet wide and five feet
deep around the whole prison on the outside, and this ditch was filled
with water from the City Water Works. No one could cross this without
attracting the attention of the guards.

Still we were not discouraged, and Andrews and I joined a crowd that was
constructing a large tunnel from near our quarters on the east side of
the pen. We finished the burrow to within a few inches of the edge of
the ditch, and then ceased operations, to await some stormy night, when
we could hope to get across the ditch unnoticed.

Orders were issued to guards to fire without warning on men who were
observed to be digging or carrying out dirt after nightfall. They
occasionally did so, but the risk did not keep anyone from tunneling.
Our tunnel ran directly under a sentry box. When carrying dirt away the
bearer of the bucket had to turn his back on the guard and walk directly
down the street in front of him, two hundred or three hundred feet, to
the center of the camp, where he scattered the sand around--so as to give
no indication of where it came from. Though we always waited till the
moon went down, it seemed as if, unless the guard were a fool, both by
nature and training, he could not help taking notice of what was going on
under his eyes. I do not recall any more nervous promenades in my life,
than those when, taking my turn, I received my bucket of sand at the
mouth of the tunnel, and walked slowly away with it. The most
disagreeable part was in turning my back to the guard. Could I have
faced him, I had sufficient confidence in my quickness of perception,
and talents as a dodger, to imagine that I could make it difficult for
him to hit me. But in walling with my back to him I was wholly at his
mercy. Fortune, however, favored us, and we were allowed to go on with
our work--night after night--without a shot.

In the meanwhile another happy thought