"Perhaps I fell asleep, or at least there was an interval of time during which I was so absorbed in my own thoughts I was hardly conscious of the scene before me. "Then I became aware of a dim shape in the foreground--a shape merged with the outlines surrounding it. And as I looked, it gradually assumed form, and I saw it was the figure of a young girl, sitting beside the liquid pool. Except for the same waviness of outline and phosphorescent glow, she had quite the normal aspect of a human being of our own world. She was beautiful, according to our own standards of beauty; her long braided hair a glowing black, her face, delicate of feature and winsome in expression. Her lips were a deep red, although I felt rather than saw the colour. "She was dressed only in a short tunic of a substance I might describe as gray opaque glass, and the pearly whiteness of her skin gleamed with iridescence. "She seemed to be singing, although I heard no sound. Once she bent over the pool and plunged her hand into it, laughing gaily. "Gentlemen, I cannot make you appreciate my emotions, when all at once I remembered I was looking through a microscope. I had forgotten entirely my situation, absorbed in the scene before me. And then, abruptly, a great realization came upon me--the realization that everything I saw was inside that ring. I was unnerved for the moment at the importance of my discovery. "When I looked again, after the few moments my eye took to become accustomed to the new form of light, the scene showed itself as before, except that the girl had gone. "For over a week, each night at the same time I watched that cave. The girl came always, and sat by the pool as I had first seen her. Once she danced with the wild grace of a wood nymph, whirling in and out the shadows, and falling at last in a little heap beside the pool. "It was on the tenth night after I had first seen her that the accident happened. I had been watching, I remember, an unusually long time before she appeared, gliding out of the shadows. She seemed in a different mood, pensive and sad, as she bent down over the pool, staring into it intently. Suddenly there was a tremendous cracking sound, sharp as an explosion, and I was thrown backward upon the floor. "When I recovered consciousness--I must have struck my head on something--I found the microscope in ruins. Upon examination I saw that its larger lens had exploded--flown into fragments scattered around the room. Why I was not killed I do not understand. The ring I picked up from the floor; it was unharmed and unchanged.