Supplies and ammunition were both running low and General Thomas was considering massing a force of men on some point in the line in an attempt to break through far enough for a messenger to escape. This meant a great loss of life and probably would not be successful as the messenger would almost certainly be captured by an outer ring of scouts which Bragg would throw out as soon as he realized what was going on. There was only one other chance. The Confederates were so sure of their own strength, and that they would eventually capture the whole army, that they had not destroyed the railroad line which ran between the two Federal camps, hoping to use the same for shipping soldiers, prisoners and captured supplies later on. Both sides of the track, however, were lined with guards and covered by a number of Confederate batteries. General Thomas decided to make the attempt and called for volunteers who were willing to run this forty-mile gauntlet between the Confederate lines and batteries. Two old railroad men offered their services as engineer and fireman and they were accompanied by an adjutant who was to be the bearer of the despatches. There seemed to be only one chance in a thousand for this engine to get safely through and the men themselves, if they were not shot in their flight or wrecked with the engine, stood a good chance of being captured and hung as spies. In fact it seemed such a hopeless chance that at the last moment General Thomas was on the point of countermanding the order when one of the men themselves gave the best argument in favor of the plan. "It's worth trying, General," said he, "for even if we fail, you only lose three men. The other way you would have to throw away at least a thousand before you could find out whether it was possible to cut through the lines or not."