Satan Taking Possession Of A Man Who Fished On Sunday

The following tale is in its main features still current in Cynwyd, a village about two miles from Corwen. The first reference to the story that I am acquainted with appeared in an essay sent in to a local Eisteddfod in 1863. The story is thus related in this essay:—

“About half a mile from Cynwyd is the ‘Mill Waterfall,’ beneath which there is a deep linn or whirlpool, where a man, who was fishing there on Sunday, once found an enormous fish. ‘I will catch him, though the Devil take me,’ said the presumptuous man. The fish went under the fall, the man followed him, and was never afterwards seen.” Such is the tale, but it is, or was believed, that Satan had changed himself into a fish, and by allurement got the man into his power and carried him bodily to the nethermost regions.

[Welsh folk-lore: a collection of the folk-tales and legends of North Wales (1887) – Elias Owen]