we have a story of the detective, dupin, and the prefect, who comes into dupin and says, i don't know what to do, this letter that belongs to this noble lady has been stolen and we know it was stolen, and we have gone into his apartment when he is away, and gone and looked every drawer, we've looked everywhere, we've even look at hollowed out the dowels in his furniture, we've had people waylaying into the street to see if he carried it on his person, it cannot be found.