It was with the scent of a hound on the trail that I went to Guthrie, for I had spent many years collecting data on the evolution of serpent-worship among the Indians. I had always felt, from well-defined undertones of legend and archeology, that great Quetzalcoatl—benign snake-god of the Mexicans—had had an older and darker prototype; and during recent months I had well-nigh proved it in a series of researches stretching from Guatemala to the Oklahoma plains. But everything was tantalizing and incomplete, for above the border the cult of the snake was hedged about by fear and furtiveness.