Pigeons from Hell

Pigeons from Hell is a 1938 short story by Robert E. Howard, best known as the creator of Conan the Barbarian. This story is a fine example of the traditional Southern gothic horror tale and appears on various "best horror" lists. You can read it online here. It begins:

1. THE WHISTLER IN THE DARK

Griswell awoke suddenly, every nerve tingling with a premonition of imminent peril. He stared about wildly, unable at first to remember where he was, or what he was doing there. Moonlight filtered in through the dusty windows, and the great empty room with its lofty ceiling and gaping black fireplace was spectral and unfamiliar. Then as he emerged from the clinging cobwebs of his recent sleep, he remembered where he was and how he came to be there. He twisted his head and stared at his companion, sleeping on the floor near him. John Branner was but a vaguely bulking shape in the darkness that the moon scarcely grayed.

Griswell tried to remember what had awakened him. There was no sound in the house, no sound outside except the mournful hoot of an owl, far away in the piny woods. Now he had captured the illusive memory. It was a dream, a nightmare so filled with dim terror that it had frightened him awake. Recollection flooded back, vividly etching the abominable vision.

Or was it a dream? Certainly it must have been, but it had blended so curiously with recent actual events that it was difficult to know where reality left off and fantasy began.