The document that Virdow had prepared was written in German. "When your eye reads these lines, you will be grieved beyond endurance; Gerald is no more! He was killed to-night by a flash of lightning and his death was instantaneous. I am alone, heartbroken and utterly wretched. Innocent of any responsibility in this horrible tragedy I was yet the cause, since it was while submitting to some experiments of mine that he received his death stroke. I myself received a frightful electric shock, but it now amounts to nothing. I would to God that I and not he had received the full force of the discharge. He might have been of vast service to science, but my work is little and now well-nigh finished. "Gerald was kneeling under a steel disk, in the glass-room, you will remember where we began our sound experiments, and I did not know that the steel wire which suspended it ran up and ended near a metal strip, along the ridge beam of the room. We had just begun our investigation, when the flash descended and he fell dead. "At this writing I am here under peculiar circumstances; the butler who came to my call when I recovered consciousness assisted me in the attempt at resuscitation of Gerald, but without any measure of success. He then succeeded in getting one or two of the old negroes and a doctor. The latter declared life extinct. There was no disfigurement--only a black spot in the crown of the head and a dark line down the spine, where the electric fluid had passed. That was all." Edward ceased to read; his chin sank upon his breast and the lines slipped from his unfocused eyes. The dark line down the spine! His heart leaped fiercely and he lifted his face with a new light in his eyes. For a moment it was radiant; then shame bowed his head again. He laid aside the paper and gave himself up to thought, from time to time pacing the room. In these words lay emancipation. He resumed the reading: "We arranged the body on the lounge and determined to wait until morning to send for the coroner and undertaker, but one by one your negroes disappeared. They could not seem to withstand their superstition, the butler told me, and as there was nothing to be done I did not worry. I came here to the library to write, and when I returned, the butler, too, was gone. They are a strange people. I suppose I will see none of them until morning, but it does not matter; my poor friend is far beyond the reach of attention. His rare mind has become a part of cosmos; its relative situation is our mystery.