The storm still raged fiercely, and the faint beams of a street-lamp revealed the muffled form of the sentinel slowly pacing his beat and carrying his musket at "secure" arms. Creeping softly toward him along the cellar wall, he now saw that what he had supposed was a door was simply a naked opening to the street; and further inspection disclosed the fact that there was but one sentinel on the south side of the prison. Standing in the dark shadow, he could easily have touched this man with his hand as he repeatedly passed him. Groping about, he found various appurtenances indicating that the south end of this cellar was used for a carpenter's shop, and that the north end was partitioned off into a series of small cells with padlocked doors, and that through each door a square hole, a foot in diameter, was cut. Subsequently it was learned that these dismal cages were alternately used for the confinement of "troublesome prisoners"—i. e., those who had distinguished themselves by ingenious attempts to escape—and also for runaway slaves, and Union spies under sentence of death.
At the date of Rose's first reconnaissance to this cellar, these cells were vacant and unguarded. The night was far spent, and Rose proceeded to return to the kitchen, where Hamilton was patiently waiting for him.
The very next day a rare good fortune befell Rose. By an agreement between the commissioners of exchange, several bales of clothing and blankets had been sent by our government to the famishing Union prisoners on Belle Isle, a number of whom had already frozen to death. A committee of Union officers then confined in Libby, consisting of General Neal Dow, Colonel Alexander von Shrader, Lieut.-Colonel Joseph F. Boyd, and Colonel Harry White, having been selected by the Confederates to supervise the distribution of the donation, Colonel White had, by a shrewd bit of finesse, "confiscated" a fine rope by which one of the bales was tied, and this he now presented to Colonel Rose. It was nearly a hundred feet long, an inch thick, and almost new.
It was hardly dark the following night before Rose and Hamilton were again in the kitchen, and as soon as all was quiet Rose fastened his rope to one of the supporting posts, took up the floor-plank as before, and both men descended to the middle cellar. They were not a little disappointed to discover that where there had been but one sentinel on the south side there were now two. On this and for several nights they contented themselves with sly visits of observation to this cellar, during which Rose found and secreted various tools, among which were a broad-ax, a saw, two chisels, several files, and a carpenter's square. One dark night both men went down and determined to try their luck at passing the guards. Rose made the attempt and succeeded in passing the first man, but unluckily was seen by the second. The latter called lustily for the corporal of the guard, and the first excitedly cocked his gun and peered into the dark door through which Rose swiftly retreated. The guard called, "Who goes there?" but did not enter the dark cellar. Rose and Hamilton mounted the rope and had just succeeded in replacing the plank when the corporal and a file of men entered the cellar with a lantern. They looked into every barrel and under every bench, but no sign of Yankees appeared; and as on this night it happened that several workmen were sleeping in an apartment at the north end, the corporal concluded that the man seen by the sentinel was one of these, notwithstanding their denial when awakened and questioned. After a long parley the Confederates withdrew, and Hamilton and Rose, depressed in spirits, went to bed, Rose as usual concealing his rope.
Before the week was out they were at it again. On one of these nights Rose suddenly came upon one of the workmen, and, swift as thought, seized the hidden broad-ax with the intention of braining him if he attempted an alarm; but the poor fellow was too much paralyzed to cry out, and when finally he did recover his voice and his wits, it was to beg Rose, "for God's sake," not to come in there again at night. Evidently the man never mentioned the circumstance, for Rose's subsequent visits, which were soon resumed, disclosed no evidence of a discovery by the Confederates.
Hamilton agreed with Rose that there remained apparently but one means of escape, and that was by force. To overpower the two sentinels on the south side would have been an easy matter, but how to do it and not alarm the rest of the guard, and, in consequence, the whole city, was the problem. To secure these sentinels, without alarming their comrades on the east, west, and north sides of the prison, would require the swift action of several men of nerve acting in concert. Precious time was passing, and possibly further alterations might be decided upon that would shut them off from the middle cellar, as they had already been from their original base of operations. Moreover, a new cause of anxiety now appeared. It soon transpired that their nocturnal prowlings and close conferences together had already aroused the belief among many observant prisoners that a plan of escape was afoot, and both men were soon eagerly plied with guarded inquiries, and besought by their questioners to admit them to their confidence.
Hamilton and Rose now decided to organize an escaping party. A number of men were then sworn to secrecy and obedience by Colonel Rose, who was the only recognized leader in all operations that followed. This party soon numbered seventy men. The band was then taken down by Rose in convenient details to the middle cellar or carpenter's shop on many nights, to familiarize each man with the place and with his special part in the plot, and also to take advantage of any favoring circumstances that might arise.
When all had by frequent visits become familiar with the rendezvous, Rose and the whole party descended one night with the determination to escape at whatever hazard. The men were assigned to their several stations as usual, and a selected few were placed by the leader close to the entrance, in front of which the sentinel was regularly passing. Rose commanded strict silence, and placed himself near the exit preparatory to giving the signal. It was an exciting moment, and the bravest heart beat fast. A signal came, but not the one they looked for. At the very moment of action, the man whom Rose had left at the floor-opening in the kitchen gave the danger-signal! The alert leader had, with consummate care, told every man beforehand that he must never be surprised by this signal,—it was a thing to be counted upon,—and that noise and panic were of all things to be avoided as fatal folly in their operations. As a consequence, when this signal came, Rose quietly directed the men to fall in line and reascend to the kitchen rapidly, but without noise, which they did by the long rope which now formed the easy means of communication from the kitchen to the cellar.