Fuath

A fuath once seen at this mill was a nose-less banshee with yellow hair wearing a green silk dress; in the story of its capture[a] it was tormented into submission by use of steel (awl, and more effectively by a sewing needle), but it turned to a jellyfish-like mass when light was shone on it.

[7][d] While it has been generalized that the fuath of the locality wears green,[5] "golden and silken gear" was worn by the weird woman seen plunging into the River Shin was seen by a (games)keeper of the Charlotte Dempster's family.

In it, the creature emerges from a body of water and attempts to steal the anvil of Goban Saor, a mythical craftsman.

The King of Ireland's Son wrestles with the creature over the course of three nights in order to gain the favor of Goban Saor.

The story of "The Brollachan" (and several of its variant tales) from Sutherland were collected by Charlotte Dempster in 1859, and supplied to J. F. Campbell who printed it.

A "fua" of the river grabs hold of The King of Ireland's Son.
—Illust. Willy Pogany . Colum, Padraic (1916). King of Ireland's son