The Abysmal Invaders by Edmond Hamilton — Read

It is in the account of young Rowan that one finds, now, the clearest picture of the coming of the terror to Brinton. There are other accounts, for though the survivors of that terror were but few most of them have recorded their experiences; yet for the most part their narratives are too horror-stricken and incoherent to be of any real value. Rowan, on the other hand, not only saw the thing as well or better than any other single man, but set down his impressions of it in vivid style.

His narrative begins with the events already detailed, the disappearance of Dr. Morton and his own coming to Brinton. It had been some time after nightfall that he had arrived, and after making arrangements to accompany the posse into the swamp on the next morning he had ventured out into the streets of the town, which were still filled with the shuffling throngs discussing the sensation of the day. Along the streets the windows of stores were still brilliant, their proprietors taking advantage of the unaccustomed throngs, while a few raucous-voiced newsboys were selling late editions of a Chicago daily which had featured the sensation. For an hour or more Rowan strolled on through the streets and then, yawning, began to move back toward his hotel, through the thinning crowds. He had just reached the building's door when he suddenly halted.