few hours later," he continued, "I had a telephone call from Drayle's wife, and I realized from the fright in her voice that something dreadful had happened. She asked me to come to the house at once. Chris had been hurt. But she disconnected before I could ask for details. I started immediately and I wondered as I drove what disaster had overtaken him. Anything, it seemed to me, might have befallen in that room of miracles. But I was not prepared to find that Drayle had been shot and wounded.
"The police were before me and already questioning the assailant, Mrs. Farrel, a fiery tempered young Irish-woman. When I entered the room she was repeating half-hysterically her explanation that Drayle had killed her husband in the laboratory that morning.
"'Right before my eyes, I seen it,' she shouted. 'Harry was standing on a sort of platform looking at a big machine like, and so help me he didn't have a stitch of clothes on, and I started to say something, but all at once there came a terrible sort of screech and a flash like lightnin' kinda, in front of him. Then Harry turns into a sort of thick smoke and I can see right through him like he was a ghost; and then the smoke gets sucked into a big hole in the machine and I know Harry's dead. And here's this man what done it, just a standin' there, grinnin' horrid. So something comes over me all at once and I points Harry's gun at him and pulls the trigger!'
"Even before the woman had finished I recalled what I seen one afternoon in Drayle's laboratory many months before. I had been there for some time watching him when he placed a small tumbler on a work table and asked me if I had ever seen glass shattered by the vibrations of a violin. I told him that I had, but he went through the demonstration as if to satisfy himself. Of course when he drew a bow across the instrument's strings and produced the proper pitch the goblet cracked into pieces exactly as might have been expected. And I wondered why Drayle concerned himself with so childish an experiment before I noticed that he appeared to have forgotten me completely.
endeavored then not to disturb him, and I remember trying to draw myself out of his way and feeling that something momentous was about to take place. Yet actually I believe it would have required a considerable commotion to have distracted his attention, for his ability to concentrate was one of the characteristics of his genius.
"I saw him place another glass on the table and I noticed then that it stood directly in front of a complicated mechanism. At first this gave out a low humming sound, but it soon rose to an unearthly whining shriek. I shrank from it involuntarily and a second later I was amazed at the sight of the glass, seemingly reduced to a thin vapor, being drawn into a funnel-like opening near the top of the device. I was too startled to speak and could only watch as Drayle started the contrivance again. Once more its noise cut through me with physical pain. I cried out. But my voice was overwhelmed by the terrific din of the mysterious machine.
"Then Drayle strode down the long room to another intricate mass of wire coils and plates and lamps. And I saw a dim glow appear in two of the bulbs and heard a noise like the crackling of paper. Drayle made some adjustments, and presently I observed a peculiar shimmering of the air above a horizontal metal grid. It reminded me of heat waves rising from a summer street, until I saw the vibrations were taking a definite pattern; and that the pattern was that of the glass I had seen dissolved into air. At first the image made me think of a picture formed by a series of horizontal lines close together but broken at various points in such fashion as to create the appearance of a line by the very continuity of the fractures. But as I watched, the plasma became substance. The air ceased to quiver and I was appalled to see Drayle pick up the tumbler and carry it to a scale on which he weighed it with infinite exactness. If he had approached me with it at that moment I would have fled in terror.