There is an old tale of a ghost making his appearance to a young boy, at a place called Duffryn, near Maesteg. This unearthly visitor, when he first appeared to the young lad, told him that he had looked oftener in his face than ever his mother had done. This spirit seemed to have no other mission than to torment the family who were then living at the farm-house, and he incited the young boy to all kinds of mischief, such as setting fire to the ricks, turning the cattle out of the sheds, and like deeds; and when he would show signs of disobedience, he punished him severely. He was known to have thrown him over th ehouse, when luckily he feel amongst the branches of an old oak tree. It was said that the boy never received any great injury by such treatment. This spirit grew so bold that he undertook at last to smash the windows, by pelting them with stones; and though the inmates of the house were often in immediate danger of their lives, they escaped unhurt. This ghost was at last made to depart by application of the Black Art.
Folklore of Glamorgan, by E.V. Evans, in ‘Transactions of the National Eistedfodd of Wales’ 1885.