” He could not, I reflected, be so weak as not to see that the most intricate and remote recess of his hotel would be as open as his commonest closets to the eyes, to the probes, to the gimlets, and to the microscopes of the Prefect. I saw, in fine, that he would be driven, as a matter of course, to simplicity, if not deliberately induced to it as a matter of choice. You will remember, perhaps, how desperately the Prefect laughed when I suggested, upon our first interview, that it was just possible this mystery troubled him so much on account of its being so very self-evident.”
“Yes,” said I, “I remember his merriment well. I really thought he would have fallen into convulsions.”
“The material world,” continued Dupin, “abounds with very strict analogies to the immaterial; and thus some color of truth has been given to the rhetorical dogma, that metaphor, or simile, may be made to strengthen an argument, as well as to embellish a description. The principle of the vis inertiae, for example, seems to be identical in physics and metaphysics. It is not more true in the former, that a large body is with more difficulty set in motion than a smaller one, and that its subsequent momentum is commensurate with this difficulty, than it is, in the latter, that intellects of the vaster capacity, while more forcible, more constant, and more eventful in their movements than those of inferior grade, are yet the less readily moved, and more embarrassed and full of hesitation in the first few steps of their progress. Again: have you ever noticed which of the street signs, over the shop doors, are the most attractive of attention?”
“I have never given the matter a thought,” I said.
“There is a game of puzzles,” he resumed, “which is played upon a map. One party playing requires another to find a given word –the name of town, river, state or empire –any word, in short, upon the motley and perplexed surface of the chart. A novice in the game generally seeks to embarrass his opponents by giving them the most minutely lettered names; but the adept selects such words as stretch, in large characters, from one end of the chart to the other. These, like the over-largely lettered signs and placards of the street, escape observation by dint of being excessively obvious; and here the physical oversight is precisely analogous with the moral inapprehension by which the intellect suffers to pass unnoticed those considerations which are too obtrusively and too palpably self-evident. But this is a point, it appears, somewhat above or beneath the understanding of the Prefect. He never once thought it probable, or possible, that the Minister had deposited the letter immediately beneath the nose of the whole world, by way of best preventing any portion of that world from perceiving it.
“But the more I reflected upon the daring, dashing, and discriminating ingenuity of D–; upon the fact that the document must always have been at hand, if he intended to use it to good purpose; and upon the decisive evidence, obtained by the Prefect, that it was not hidden within the limits of that dignitary’s ordinary search –the more satisfied I became that, to conceal this letter, the Minister had resorted to the comprehensive and sagacious expedient of not attempting to conceal it at all.
“Full of these ideas, I prepared myself with a pair of green spectacles, and called one fine morning, quite by accident, at the Ministerial hotel…”
– Ese razonamiento le haría desdeñar todos los escondrijos posibles. No podía ignorar que los rincones más intrincados y remotos serían evidentes a los ojos, a las sondas, a los barrenos y a los microscopios del Prefecto. Vi que la necesidad y la reflexión le aconsejarían el empleo de un recurso muy simple.
—Hay un juego de niños —continuó Dupin— que se juega con un mapa. Un jugador pide a otro que encuentre una palabra determinada —el nombre de una ciudad, de un río, de un estado o imperio—, una de las palabras, en fin, que registra la abigarrada y confusa superficie del mapa. El novicio trata de confundir a su adversario eligiendo nombres impresos en letra diminuta. Pero los expertos eligen palabras impresas en enormes letras. Estas, de tan evidentes que son, resultan imperceptibles. Tal vez, ante el problema de la ocultación de la carta, el Ministro había seguido un criterio análogo.
Una mañana me puse unos anteojos ahumados y me presenté en casa del Ministro.