"Cambion" by Clark Ashton Smith

A cambion is the offspring of an incubus, succubus, or other type of demon with a human. In the word's earliest known uses, it was interchangeable with changeling.

wold: a usually upland area of open country; a hilly or rolling region

Alecto: one of the Erinyes (Furies) in Greek mythology. Daughter of Gaea fertilized by the blood spilled from Uranus when Cronus castrated him, with snakes for hair and blood dripping from her eyes, and wings like those of bats. Alecto's job as a Fury is castigating the moral crimes (such as anger) of humans, especially if they are against others.

leman: lover or sweetheart, especially an illicit lover, especially a mistress

The picture used is a pair of cambions by Anne Stokes, from the D&D 4th edition Monster Monster

To follow along: http://www.eldritchdark.com/writings/poetry/75/cambion