dorous den for several seconds before I could see what was crawling and wriggling about on the straw-covered floor, emitting every now and then a weak and vacuous hiss. Then the shadowed outlines began to take shape, and I perceived that the squirming entity bore some remote resemblance to a human form laid flat on its belly. I clutched at the door-handle for support as I tried to keep from fainting.
The moving object was almost of human size, and entirely devoid of clothing. It was absolutely hairless, and its tawny-looking back seemed subtly squamous in the dim, ghoulish light.
Around the shoulders it was rather speckled and brownish, and the head was very curiously flat. As it looked up to hiss at me I saw that the beady little black eyes were damnably anthropoid, but I could not bear to study them long. They fastened themselves on me with a horrible persistence, so that I closed the panel gaspingly and left the creature to wriggle about unseen in its matted straw and spectral twilight. I must have reeled a bit, for I saw that the doctor was gently holding my arm as he guided me away. I was stuttering over and over again: "B-but for God's sake, what is it?"
Doctor McNeill told me the story in his private office as I sprawled opposite him in an easy-chair. The gold and crimson of late afternoon changed to the violet of early dusk, but still I sat awed and motionless. I resented every ring of the telephone and every whir of the buzzer, and I could have cursed the nurses and internes whose knocks now and then summoned the doctor briefly to the outer office. Night came, and I was glad my host switched on all the lights. Scientist though I was, my zeal for research was half forgotten amid such breathless ecstasies of fright as a small boy might feel when whispered witch-tales go the rounds of the chimney-corner.
It seems that Yig, the snake-god of the central plains tribes—presumably the primal source of the more southerly Quetzalcoatl or Kukulcan—was an odd, half-anthropomorphic devil of highly arbitrary and capricious nature. He was not wholly evil, and was usually quite well disposed toward those who gave proper respect to him and his children, the serpents; but in the autumn he became abnormally ravenous and had to be driven away by means of suitable rites. That was why the tom-toms in the Pawnee, Wichita, and Caddo country pounded ceaselessly week in and week out in August, September, and October; and why the medicine-men made strange noises with rattles and whistles curiously like those of the Aztecs and Mayas.
Yig's chief trait was a relentless devotion to his children—a devotion so great that the redskins almost feared to protect themselves from the venomous rattlesnakes which thronged the region. Frightful clandestine tales hinted of his vengeance upon mortals who flouted him or wreaked harm upon his wriggling progeny; his chosen method being to turn his victim, after suitable tortures, to a spotted snake.
In the old days of the Indian Territory, the doctor went on, there was not quite so much secrecy about Yig. The plains tribes, less cautious than the desert nomads and Pueblos, talked quite freely of their legends and autumn ceremonies with the first Indian agents, and let considerable of the lore spread out through the neighboring regions of white settlement. The great fear came in the land-rush days
