The incredible dreadfulness of that embrace was suddenly more than Smith could bear. All his terrors, crushed down with so stern a self-control, without warning burst all bounds and rushed over him in a flood of blind revulsion. A whimper choked up in his throat and quite involuntarily he swung round and plunged into the shielding trees, hands to his eyes in a futile effort to blot out the sight of lovely horror behind him whose vividness was burnt upon his very brain. Heedlessly he blundered through the trees, no thought in his terror-blank mind save the necessity to run, run, run until he could run no more. He had given up all attempt at reason and rationality; he no longer cared why the beauty of the Tree was so dreadful. He only knew that until all space lay between him and its symmetry he must run and run and run. What brought that frenzied madness to an end he never knew. When sanity returned to him he was lying face down on the flower-spangled sward in a silence so deep that his ears ached with its heaviness. The grass was cool against his cheek. For a moment he fought the back-flow of knowledge into his emptied mind. When it came, the memory of that horror he had fled from, he started up with a wild thing's swiftness and glared around pale-eyed into the unchanging dusk. He was alone. Not even a rustle in the leaves spoke of the tree-folk's presence. For a moment he stood there alert, wondering what had roused him, wondering what would come next. He was not left long in doubt. The answer was shrilling very, very faintly through that aching quiet, an infinitesimally tiny, unthinkably far-away murmur which yet pierced his ear-drums with the sharpness of tiny needles. Breathless, he strained in listening. Swiftly the sound grew louder. It deepened upon the silence, sharpened and shrilled until the thin blade of it was vibrating in the center of his innermost brain. And still it grew, swelling louder and louder through the twilight world in cadences that were rounding into a queer sort of music and taking on such an unbearable sweetness that Smith pressed his hands over his ears in a futile attempt to shut the sound away. He could not. It rang in steadily deepening intensities through every fiber of his being, piercing him with thousands of tiny music-blades that quivered in his very soul with intolerable beauty. And he thought he sensed in the piercing strength of it a vibration of queer, unnamable power far mightier than anything ever generated by man, the dim echo of some cosmic dynamo's hum. * * * * *