The story was written to order, as an after-supper "shocker" for a Hub Club gathering of amateur journalists in Boston on March 10, 1921. The meeting had a St. Patrick's Day theme.
The unnamed narrator describes the final fate of his good friend, Denys Barry, an Irish-American who reclaims an ancestral estate in Kilderry, a fictional town in Ireland. Barry ignores pleas from the local peasantry not to drain the nearby bog, with unfortunate supernatural consequences. The story bears a similarity to Lord Dunsany's first Irish novel The Curse of the Wise Woman in theme, showing the influence of Dunsany on Lovecraft's works.
"The Moon-Bog" is described by S. T. Joshi and David E. Schultz as "one of the most conventionally supernatural in HPL's oeuvre."
- ↑ S. T. Joshi and David E. Schultz, "Moon-Bog, The", An H. P. Lovecraft Encyclopedia, p. 171.
- ↑ S. T. Joshi, Explanatory notes; "The Moon-Bog", The Dreams in the Witch House And Other Weird Stories, p. 409. ISBN 0-14-243795-6.
- ↑ S. T. Joshi and David E. Schultz, "Barry, Denys", An H. P. Lovecraft Encyclopedia, p. 17.
- ↑ Joshi and Schultz, "Moon-Bog, The", p. 171.