As an alternative, it is said that Jack and the Devil met and quarrelled on Trellech Beacon – the hill directly to the East of Trellech. The Devil challenged Jack to a throwing match – Jack threw first.. the Devil threw a bit further.. Jack (probably with eyes closed and one hand behind his back) threw that bit further – and the Devil ran off in disgust.
(mentioned in Folklore 48 – Davies, the Folklore of Gwent)