At once he spoke, to reassure me. "I'm all right, Charlie. That was just the first feel of it." * * * * * There was a faint quivering throb in the room, like a tiny distant dynamo throbbing. The current was surging over Derek; his legs twitched. A moment. The faint throbbing intensified. No louder, but rapid, infinitely more rapid. A tiny throb, an aerial whine, faint as the whirring wings of a humming bird. It went up the scale, ascending in pitch, until presently it was screaming with an aerial microscopic voice. But there seemed no change in Derek. His uniform was glowing a trifle, that was all. His face was composed now; he smiled, but did not speak. His eyes roved away from me, as though now he were seeing things that I could not see. Another moment. No change. Why, what was this? I blinked, gasped. There was a change! My gaze was fastened upon Derek's white face. White? It was more than white now! A silver sheen seemed to be coming to his skin! I think no more than a minute had passed. His face was glowing, shimmering. A transparent look was coming to it, a thinness, a sudden unsubstantiality! He dropped his elbow and lay on the couch, stretched at full length at my feet. His eyes were staring. And suddenly I realized that the face that held those staring eyes was erased! A shimmering apparition of Derek was stretched here before me. I could see through it now! Beneath the shimmering, blurred outlines of his body I could see the solid folds of the couch cover. A ghost of Derek here. An apparition--fading--dissipating! A gossamer outline of him, imponderable, intangible. I leaped to my feet, staring down over him. "Derek!" The shape of him did not move. Every instant it was more vaporous, more unreal. I thought, "He's gone!" No! He was still there. A white mist of his form on the couch. Melting, dissipating in the light like a fog before sunshine. A wisp of it left, like a breath, and then there was nothing. * * * * * I sat on the couch. I had put out the light. Around me the room was black. My fingers found the small switch at my wrist. I pressed it across its tiny arc. The first shock was slight, but infinitely strange. A shuddering, twitching sensation ran all over me. It made my head reel, swept a wave of nausea over me, a giddiness, a feeling that I was falling through darkness. I lay on the couch, bracing myself. The current was whining up its tiny scale. I could feel it now. A tiny throbbing, communicating itself to my physical being. And then in a moment I realized that my body was throbbing. The vibration of the current was communicating itself to the most minute cells of my body. An indescribable tiny quivering within me. Strange, frightening, sickening at first. But the sickness passed, and in a moment I found it almost pleasant.