Fearful Rock

By MANLY WADE WELLMAN
An eery tale of the American Civil War, and the uncanny evil being who called himself Persil Mandifer, and his lovely daughter—a tale of dark powers and weird happenings.
1. The Sacrifice
Enid Mandifer tried to stand up under what she had just heard. She managed it, but her ears rang, her eyes misted. She felt as if she were drowning.
The voice of Persil Mandifer came through the fog, level and slow, with the hint of that foreign accent which nobody could identify:
Now that you know that you are not really my daughter, perhaps you are curious as to why I adopted you.
Curious ... was that the word to use? But this man who was not her father after all, he delighted in understatements. Enid's eyes had grown clearer now. She was able to move, to obey Persil Mandifer's invitation to seat herself. She saw him, half sprawling in his rocking-chair against the plastered wall of the parlor, under the painting of his ancient friend Aaron Burr. Was the rumor true, she mused, that Burr had not really died, that he still lived and planned ambitiously to make himself a throne in America? But Aaron Burr would have to be an old, old man—a hundred years old, or more than a hundred.
Persil Mandifer's own age might have been anything, but probably he was nearer seventy than fifty. Physically he was the narrowest of men, in shoulders, hips, temples and legs alike, so that he appeared distorted and compressed. White hair, like combed thistledown, fitted itself in ordered streaks to his high skull. His eyes, dull and dark as musket-balls, peered expressionlessly above the nose like a stiletto, the chin like the pointed toe of a fancy boot. The fleshlessness of his legs was accentuated by tight trousers, strapped under the insteps. At his throat sprouted a frill of lace, after a fashion twenty-five years old.
At his left, on a stool, crouched his enormous son Larue. Larue's body was a collection of soft-looking globes and bladders—a tremendous belly, round-kneed short legs, puffy hands, a gross bald head between fat shoulders. His white linen suit was only a shade paler than his skin, and his loose, faded-pink lips moved incessantly. Once Enid had heard him talking to himself, had been close enough to distinguish the words. Over and over he had said: I'll kill you. I'll kill you. I'll kill you.