[Vidocq returns to Lille, where he is taken by two gendarmes, and concerts the following stratagem for escape:—]
This escape, however, was not so very easy a matter as may be surmised, when I say that our dungeons, seven feet square, had walls six feet thick, strengthened with planking crossed and rivetted with iron; a window, two feet by one, closed with three iron gratings placed one after the other, and the door cased with wrought iron. With such precautions, a jailor might depend on the safe keeping of his charge, but yet we overcame it all.
I was in a cell on the second floor with Duhamel. For six francs, a prisoner, who was also a turnkey, procured us two files, a ripping chisel, and two turnscrews. We had pewter spoons, and our jailor was probably ignorant of the use which prisoners could make of them. I knew the dungeon key; it was the counterpart of all the others on the same story; and I cut a model of it from a large carrot; then I made a mould with crumb of bread and potatoes. We wanted fire, and we procured it by making a lamp with a piece of fat and the rags of a cotton cap. The key was at last made of pewter, but it was not yet perfect; and it was only after many trials and various alterations that it fitted at last. Thus masters of the doors, we were compelled to work a hole in the wall, near the barns of the town-hall. Sallambier, who was in the dungeons below, found a way to cut the hole, by working through the planking.