Les Bijoux Indiscrets by Denis Diderot

Scarcely was Mangogul in possession of Cucufa's mysterious ring, when he was tempted to make the first trial of it on the favorite. I forgot to mention, that besides the vertue of obliging the Toys of those women, on whom he turn'd the stone, to speak, it had that also of rendering the person invisible, who wore it on the little finger. Thus could Mangogul transport himself in the twinkling of an eye to a thousand places where he was not expected, and with his own eyes see many things, which are frequently transacted without witnesses. He had nothing more to do than to put on his ring, and say "I desire to be in such a place," and he was there in an instant. Behold him then in Mirzoza's bed-chamber.

Mirzoza, who gave over all hopes of the Sultan's company, was in bed. Mangogul approach'd her pillow softly, and saw by the glimmering light of a night taper, that she was asleep. "Good," say he, "she sleeps, let us quickly shift the ring on another finger, resume our natural shape, turn the stone on this fair sleeper, and awake her Toy a little while. -- But what stops me? -- I tremble. -- Is it possible that Mirzoza? -- No, it is not possible, Mirzoza is faithful to me. Fly from me, injurious suspicions, I will not, I ought not to heed ye. " He said, and put his fingers on the ring: but taking them off as hastily as if it had been fire, he cried within himself. "What do I do, wretched man! I insult Cucufa's advice. For the sake of satisfying a silly curiosity, I am going to run the hazard of losing my mistress and my life. If her Toy should be in the humor of talking extravagantly, I should never see her more, and I should dye of grief.