We interrupt this blog...
Following is an exerpt from The Name of the Rose that I thought you might enjoy:
"To find the way out of a labyrinth," William recited, "there is only one means. At every new junction, never seen before, the path we have taken will be marked with three signs. If, because of previous signs on some of the paths of the juction, you see that the juction has already been visited, you will make only one mark on the path you have taken. If all the apertures have already breen marked, then you must retrace your steps . But if one or two apertures of the junction are still without signs, you will choose any one, making two signs on it, Proceeding through an aperture that bears only one sign , you will make two more, so that now the aperature bears three. All the parts of the labyrinth must have been visited if, arriving at a junction, you never take a passage with three signs, unless none of the other passages is now without signs."
"...And by observing this rule you get out?"
"Almost never, as far as I know. But we will try it, all the same."