The air was heavy with moisture and very still and warm; a heady fragrance of precocious blooms flavoured the air, vying with the scent of rain. The silence was profound, but shaken now and then by a grumble of distant thunder. The world hung breathless on the issue of the night.
Since evenfall a wall of cloud, massive and portentous, had been climbing up over the western hills, slowly but with ominous steadiness obscuring the moon-swept sky with its far, pale wreaths of stars, blotting it out with monstrous folds and convolutions of impenetrable purple-black. Along its crest fire played like swords in the sunlight, and now and again sheeted flame lightened the monstrous expanse so that it glowed with the pale phosphorescence of a summer sea.
As Duncan hurried homeward over sidewalks che
