To cut down a fairy thorn or to injure the house of a fairy is regarded as certain to bring misfortune. An old woman also living at Maghera, related how her great-grandmother had received a visit from a small old woman, who forbade the building of a certain turf-stack, saying that evil would befall anyone who injured the chimneys of her house. The warning was disregarded, the turf-stack built, and before long four cows died.
I was told that when a certain fort in Co. Fermanagh was levelled to the ground misfortune overtook the men who did the work, although, apparently, they were only labourers, many of them dying suddenly. It was also said that where this fort had stood there were caves or hollows in the ground into which the oxen would fall when ploughing. An attempt to bring a fort near Newcastle under cultivation is believed to have caused the sudden death of the owner.
The fairies are celebrated as fine musicians; they ride on small horses; the women grind meal, and the sound of their spinning is often heard at night in the peasants' cottages. The following story is related as having occurred at Camlough, near Newry.
A woman was spinning one evening when three fairies came into the house, each bringing a spinning-wheel. They said they would help her with her work, and one of them asked for a drink of water. The woman went to the well to fetch it. When there she was warned, apparently by a friendly fairy, that the others had come only to mock and harm her. Acting on the advice of this friend, the woman, as soon as she had given water to the three, turned again to the open door, and stood looking intently towards a fort. They asked what she was gazing at, and the reply was: "At the blaze on the fort." No sooner had she uttered these words than the three fairies rushed out with such haste that one of them left her spinning-wheel behind, which, according to the story, is now to be seen in Dublin Castle. The woman then shut her door, and put a pin in the keyhole, thus effectually preventing the return of her visitors.
In this story we have probably an allusion to the signal fires which are believed by the peasantry to have been lit on the forts in time of danger, one fort being always within view of another. These forts, or raths, appear to have been the favourite abode of the fairies. To use the language of the peasantry, these little people live in the "coves of the forths," an expression which puzzled me until I found that coves, or caves, meant underground passages—in other words, souterrains.
There are a number of these souterrains in the neighbourhood of Castlewellan, and with a young friend, who helped me to take a few rough measurements, I explored several.
Plan of Ballymagreehan Souterrain.
Ballymagreehan Fort is a short distance from Castlewellan, near the Newry Road. It is a small fort, and on the top we saw the narrow entrance to the souterrain. Passing down through this, we found ourselves in a short passage, or chamber, which led us to another passage at right angles to the first. It is about forty feet in length and three feet in width; the height varies from four to five feet. The roof is formed of flat slabs, and the walls are carefully built of round stones, but without mortar. At one end this passage appeared to terminate in a wall, but at the other it was only choked with fallen stones and débris, and I should think had formerly extended farther.