And that insistent half-memory woke suddenly. It was the memory of a story of how voodoo men leave their huts guarded in their absence by a powerful ju-ju spirit to deal madness and death to the intruder. White men ascribed such deaths to superstitious fright and hypnotic suggestion. But in that instant I understood my sense of lurking peril; I comprehended the horror that breathed like an invisible mist from that accursed hut. I sensed the reality of the ju-ju, of which the grotesque wooden images which voodoo men place in their huts are only a symbol. Saul Stark was gone; but he had left a Presence to guard his hut. I backed away, sweat beading the backs of my hands. Not for a bag of gold would I have peered into the shuttered windows or touched that unbolted door. My pistol hung in my hand, useless I knew against the _Thing_ in that cabin. What it was I could not know, but I knew it was some brutish, soulless entity drawn from the black swamps by the spells of voodoo. Man and the natural animals are not the only sentient beings that haunt this planet. There are invisible _Things_--black spirits of the deep swamps and the slimes of the river beds--the negroes know of them.... * * * * * My horse was trembling like a leaf and he shouldered close to me as if seeking security in bodily contact. I mounted and reined away, fighting a panicky urge to strike in the spurs and bolt madly down the trail. I breathed an involuntary sigh of relief as the somber clearing fell away behind me and was lost from sight. I did not, as soon as I was out of sight of the cabin, revile myself for a silly fool. My experience was too vivid in my mind. It was not cowardice that prompted my retreat from that empty hut; it was the natural instinct of self-preservation, such as keeps a squirrel from entering the lair of a rattlesnake. My horse snorted and shied violently. A gun was in my hand before I saw what had startled me. Again a rich musical laugh taunted me. She was leaning against a bent tree-trunk, her hands clasped behind her sleek head, insolently posing her sensuous figure. The barbaric fascination of her was not dispelled by daylight; if anything, the glow of the low-hanging sun enhanced it. "Why did you not go into the ju-ju cabin, Kirby Buckner?" she mocked, lowering her arms and moving insolently out from the tree. She was clad as I had never seen a swamp woman, or any other woman, dressed. Snakeskin sandals were on her feet, sewn with tiny sea-shells that were never gathered on this continent. A short silken skirt of flaming crimson molded her full hips, and was upheld by a broad bead-worked girdle. Barbaric anklets and armlets clashed as she moved, heavy ornaments of crudely hammered gold that were as African as her loftily piled coiffure. Nothing else she wore, and on her bosom, between her arching breasts, I glimpsed the faint lines of tattooing on her brown skin.