"One might ask why Senhor José needs a hundred-yard-long piece of string if the length of the Central Registry, despite successive extensions, is no more than eighty. That is the question of a person who imagines that one can do everything in life simply by following a straight line, that it is always possible to proceed from one place to another by the shortest route, perhaps some people in the outside world believe that they have done so, but here, where the living and the dead share the same space, sometimes, in order to find one of them, you have to make a lot of twists and turns, you have to skirt round mountains of bundles, columns of files, piles of cards, thickets of ancient remains, you have to walk down dark gulleys, between walls of grubby paper which, up above, actually touch, yards and yards of string will have to be unravelled, left behind, like a sinuous, subtle trail traced in the dust, there is no other way of knowing where you have to go next, there is no other way of finding your way back."