Sherlock Holmes - Old man in opium den

They (the words) could only have come from the old man at my side.
Yet he sat now as absorbed as ever, very thin, very wrinkled, bent with age, an opium pipe dangling down from between his knees, as though it had dropped in sheer lassitude from his fingers. I took two steps forward and looked back. It took all my self-control to prevent me from breaking out into a cry of astonishment. He had turned his back so that none could see him but I. His form had filled out, his wrinkles were gone, the dull eyes had regained their fire, and there, sitting by the fire and grinning at my surprise, was none other than Sherlock Holmes. He made a slight motion to me to approach him, and instantly, as he turned his face half round to the company once more, subsided into a doddering, loose-lipped senility. (Dr John Watson)