Besides Indian corn, the parching of which amused me, I had dried ham and tongue, and bread and cheese, enough, by frugal use, to last me a month at least. I knew it would be a journey of six weeks or more to the nearest English settlement, but if I could get that month's start I should forage for the rest, or take my fate as I found it: I was used to all the turns of fortune now. My knapsack gradually filled, and meanwhile I slowly worked my passage into the open world. There was the chance that my jailer would explore the knapsack; but after a time I lost that fear, for it lay untouched with a blanket in a corner, and I cared for my cell with my own hands. The true point of danger was the window. There lay my way. It was stoutly barred with iron up and down, and the bars were set in the solid limestone. Soon after I entered this prison, I saw that I must cut a groove in the stone from stanchion to stanchion, and then, by drawing one to the other, make an opening large enough to let my body through. For tools I had only a miserable knife with which I cut my victuals, and the smaller but stouter one which Gabord had not taken from me. There could be no pounding, no chiselling, but only rubbing of the hard stone. So hour after hour I rubbed away, in constant danger of discovery however. My jailer had a trick of sudden entrance, which would have been grotesque if it had not been so serious to me. To provide against the flurried inquisition of his eye, I kept near me bread well chewed, with which I filled the hole, covering it with the sand I had rubbed or the ashes of my pipe. I lived in dread of these entrances, but at last I found that they chanced only within certain hours, and I arranged my times of work accordingly. Once or twice, however, being impatient, I scratched the stone with some asperity and noise, and was rewarded by hearing my fellow stumbling in the hall; for he had as uncertain limbs as ever I saw. He stumbled upon nothing, as you have seen a child trip itself up by tangling of its feet.