If poems are possibilities, my all-time favourite poem for Halloween is "The Witch of Coos" by Robert Frost, one of the all time great ghost stories. And for folkies, it's got references to "The Wild Colonial Boy" in it.

"Folks think a witch who has familiar spirits
She could call up to pass a winter evening,
But won't, should be burned at the stake or something."
--from "The Witch of Coos"