“‘That Damned Thing!’ he replied, without turning his head.  His voice was husky and unnatural.  He trembled visibly.

“I was about to speak further, when I observed the wild oats near the place of the disturbance moving in the most inexplicable way.  I can hardly describe it.  It seemed as if stirred by a streak of wind, which not only bent it, but pressed it down—­crushed it so that it did not rise; and this movement was slowly prolonging itself directly toward us.

“Nothing that I had ever seen had affected me so strangely as this unfamiliar and unaccountable phenomenon, yet I am unable to recall any sense of fear.  I remember—­and tell it here because, singularly enough, I recollected it then—­that once in looking carelessly out of an open window I momentarily mistook a small tree close at hand for one of a group of larger trees at a little distance away.  It looked the same size as the others, but being more distinctly and sharply defined in mass and detail seemed out of harmony with them.  It was a mere falsification of the law of aerial perspective, but it startled, almost terrified me.  We so rely upon the orderly operation of familiar natural laws that any seeming suspension of them is noted as a menace to our safety, a warning of unthinkable calamity.  So now the apparently causeless movement of the herbage and the slow, undeviating approach of the line of disturbances were distinctly disquieting.  My companion appeared actually frightened, and I could hardly credit my senses when I saw him suddenly throw his gun to his shoulder and fire both barrels at the agitated grain!  Before the smoke of the discharge had cleared away I heard a loud savage cry—­a scream like that of a wild animal—­and flinging his gun upon the ground Morgan sprang away and ran swiftly from the spot.  At the same instant I was thrown violently to the ground by the impact of something unseen in the smoke—­some soft, heavy substance that seemed thrown against me with great force.

“Before I could get upon my feet and recover my gun, which seemed to have been struck from my hands, I heard Morgan crying out as if in mortal agony, and mingling with his cries were such hoarse, savage sounds as one hears from fighting dogs.  Inexpressibly terrified, I struggled to my feet and looked in the direction of Morgan’s retreat; and may Heaven in mercy spare me from another sight like that!  At a distance of less than thirty yards was my friend, down upon one knee, his head thrown back at a frightful angle, hatless, his long hair in disorder and his whole body in violent movement from side to side, backward and forward.  His right arm was lifted and seemed to lack the hand—­at least, I could see none.  The other arm was invisible.  At times, as my memory now reports this extraordinary scene, I could discern but a part of his body; it was as if he had been partly blotted out—­I cannot otherwise express it—­then a shifting of his position would bring it all into view again.