Chapter 1

where the moon shone full on it, and waited to see if anything else occurred to me. Suddenly I heard a sort of metallic snap. I went and looked at the box. Nothing appeared on the side nearest to me--but when I turned it round I saw that all along the side which the moon had shone upon there was a line along the metal. I turned another side to the moonlight, and another snap came in two or three minutes. Of course I went on. When the moon had made a groove on all four sides, I tried the