Taking advantage of my proximity to the box, I inserted in the keyhole a small morsel of wax which for some minutes past I had been warming in my hand. This done, I laid my hat down on the lid, noting with great exactness as I did so just where its rim lay in reference to the various squares and scrolls with which the top was ornamented. By this means I felt that I might know if the hat were moved in my absence. The doctor having showed himself by this time, I followed him into his office with a calmness born of the most complete confidence in the strategy I had employed. Dr. Merriam, whom I have purposely refrained from describing until now, was a tall, well-made man, with a bald head and a pleasant eye, but careless in his attire and bearing. As I met that eye and responded to his good-natured greeting, I inwardly decided that his interest in the box was much less than his guardianship of it would seem to betoken. And when I addressed him and entered upon the subject of my friend’s complaint, I soon saw by the depth of his professional interest that whatever connection he might have with the box, neither that nor any other topic whatever could for a moment vie with his delight in a new and strange case like that of my poor friend. I consequently entered into the medical details demanded of me with a free mind and succeeded in getting some very valuable advice, for which I was of course truly grateful. As soon as this was accomplished I took my leave, but not by the usual door of egress. Saying that I had left my hat in the ante-room, I bowed my acknowledgments to the doctor and returned the way I came. But not without meeting with a surprise. There was still but one person in the room with the box, but that person was not the man with the bristling mustache and determined eye whom I had expected to find there. It was the pretty, Quaker-like girl who had formerly aroused my suspicions; and though she sat far from the box, a moment’s glance at her flushed face and trembling hands assured me she had but that moment left it. Going at once to the box, I saw that my hat had been moved. But more significant still was the hairpin lying on the floor at my feet, with a morsel of wax sticking to one of its points. This was conclusive. The man had discovered why his key would not work, and had called to his aid the young lady, who had evidently been waiting in the hall outside. She had tried to pick out the wax--a task in which I had happily interrupted her.