The red mushrooms had begun to burst. Only that day, one of the women, seeking edible fungus for the tribal larder, had seen the fat, distended globule of the red mushroom. Its skin was stretched taut, and glistened in the light. The woman paid little or no attention to the red growth. Her ears were attuned to catch sounds that would warn her of danger while her eyes searched for tidbits that would make a meal for the tribe, and more particularly for her small son, left behind at the hiding-place. A ripping noise made her start up, alert on the instant. The red envelope of the mushroom had split across the top, and a thick cloud of brownish-red dust was spurting in every direction. It formed a pyramidal cloud some thirty feet in height, which enlarged and grew thinner with minor eddies within itself. A little yellow butterfly with wings barely a yard from tip to tip, flapped lazily above the mushroom-covered plain. Its wings beat the air with strokes that seemed like playful taps upon a friendly element. The butterfly was literally intoxicated with the sheer joy of living. It had emerged from its cocoon barely two hours before, and was making its maiden flight above the strange and wonderful world. It fluttered carelessly into the red-brown cloud of mushroom spores. The woman was watching the slowly changing form of the spore-mist. She saw the butterfly enter the brownish dust, and then her eyes became greedy. There was something the matter with the butterfly. Its wings no longer moved lazily and gently. They struck out in frenzied, hysterical blows that were erratic and wild. The little yellow creature no longer floated lightly and easily, but dashed here and there, wildly and without purpose, seeming to be in its death-throes. It crashed helplessly against the ground and lay there, moving feebly. The woman hurried forward. The wings would be new fabric with which to adorn herself, and the fragile legs of the butterfly contained choice meat. She entered the dust-cloud. A stream of intolerable fire--though the woman had never seen or known of fire--burned her nostrils and seared her lungs. She gasped in pain, and the agony was redoubled. Her eyes smarted as if burning from their sockets, and tears blinded her. The woman instinctively turned about to flee, but before she had gone a dozen yards--blinded as she was--she stumbled and fell to the ground. She lay there, gasping, and uttering moans of pain, until one of the men of the tribe who had been engaged in foraging near by saw her and tried to find what had injured her. She could not speak, and he was about to leave her and tell the other tribefolk about her when he heard the clicking of an ant's limbs, and rather than have the ant pick her to pieces bit by bit--and leave his curiosity ungratified--the man put her across his shoulders and bore her back to the hiding-place of the tribe.