Herman's Fort is another small fort on the opposite side of Castlewellan, in the townland of Clarkill. Climbing to the top of it, we came to an enclosure where several thorn-bushes were growing. The farmer who kindly acted as our guide showed us two openings. One of these led to a narrow chamber fully six feet high, the other to a passage more than thirty feet in length and about three feet wide, while the height varied from three and a half feet in one part to more than five feet in another. I was told that water is always to be found near these forts, and was shown a well which had existed from time immemorial; the sides were built of round stones without mortar, in the same way as the walls of the passage.
We heard here of another souterrain about a mile distant, called Backaderry Cove. It is on the side of a hill close to the road leading from Castlewellan to Dromara. A number of thorn-bushes grow near the place, but there is no mound, either natural or artificial. Creeping through the opening, we found ourselves in a passage about forty feet in length; a chamber opens off it nine feet in length, and between five and six feet in height, while the height of the passage varies from four and a half to five and a half feet. There is a tradition that this passage formerly connected Backaderry with Herman's Fort.
Ballyginney Fort is near Maghera. I only saw the entrance to the souterrain, but from what I heard I believe that here also there is a chamber opening off the passage. The farmer on whose land the fort is situated told me that one dry summer he had planted flax in the field adjoining the fort. The small depth of soil above the flat slabs affected the crop, so that by the difference in the flax it was easy to trace where the passage ran below the field.
We have seen that the fairies are believed to inhabit the souterrains; they are also said to live inside certain hills, and in forts where, so far as is known, no underground structure exists. I may mention as an example the large fort on the Shimna River, near Newcastle, where I was told their music was often to be heard. There may be many souterrains whose entrance has been choked up, and of which no record has been preserved. Mr. Bigger gave last session an interesting account of one discovered at Stranocum; another was accidentally found last September in a field about three miles from Newry. Mr. Mann Harbison, who visited the souterrain, writes to me that the excavation has been made in a circular portion which is six feet wide and five feet high. A gallery opens out of this chamber, and is in some places not more than three feet six inches high.
The building of the forts and souterrains is ascribed by the country people to the Danes, a race of whom various traditions exist. They are said to have had red hair; sometimes they are spoken of as large men, sometimes as short men. One old woman, who had little belief in fairies, told me that in the old troubled times in Ireland people lived inside the forts; these people were the Danes, and they used to light fires on the top as a signal from one fort to another. I heard from an elderly man of Danes having encamped on his grandmother's farm. Smoke was seen rising from an unfrequented spot, and when an uncle went to investigate the matter he found small huts with no doors, only a bundle of sticks laid across the entrance. In one of the huts he saw a pot boiling on the fire, and going forward he began to stir the contents. Immediately a red-haired man and woman rushed in; they appeared angry at the intrusion, and when he went out threw a plate after him.
The traditions in regard both to Danes and fairies are very similar in different parts of Ireland. In Co. Cavan the country people spoke of the beautiful music of the fairies, and told me of their living in a fort near Lough Oughter. One woman said they were sometimes called Ganelochs, and were about the size of children, and an old man described them as little people about one or two feet high, riding on small horses.
In Co. Waterford I was told that the fairies were not ghosts: they lived in the air. One man might see them while they would be invisible to others.
In an interesting lecture on the "Customs and Superstitions of the Southern Irish," the Rev. J. B. Leslie, who has kindly allowed me to quote from his manuscript, describes the fairies as "a species of beings neither men nor angels nor ghosts.... They are connected in the popular imagination with the Danish forts which are common in the country. In these they seem to have their abode underground. At night they hold here high revels—in grand banqueting-halls—and in these revels there must always, I believe, be a living human being. The fairies are often called the 'good people'; some think they are 'fallen angels.' They are usually thought of as harmless creatures, unless, of course, they are interfered with, when the power they wield is very great. They are very fond of games; some testify that they have seen them play football, others hurley, while playing at marbles is a special pastime, and I have even heard of persons who have discovered 'fairy marbles' near or in these forts. No one will interfere with the forts; they fear the power and anger of the fairies."
While the fairies are generally associated with the forts, I heard both in Co. Down and Co. Kerry of their living in caves in the mountains, and a lad whom I met near the Gap of Dunloe described them as having cloven feet and black hair.
A boatman at Killarney spoke of the Leprechauns as little men about three feet in height, wearing red caps. He thought the fairies might be taller, and spoke of their living in the forts. He said these forts had been built by the Danes, who must have been small men, when they made the passages so low. We thus see that fairies and Danes are both associated with these ancient structures. Although the Irish peasant speaks of these Danes having been conquered by Brian Boru, the structure and position of the raths and souterrains point to their having been the work of one of the earlier Irish races rather than of the medieval Norsemen. Their name appears to identify them with the Tuatha de Danann whose necromantic power is celebrated in Irish tales, and of whom, according to O'Curry, one class of fairies are the representatives. I know that some high authorities regard the Tuatha de Danann and the fairies as alike mythological beings. The latter are certainly in popular legend endowed with superhuman attributes; they can transport people long distances, creep through keyholes, and the fairy changeling, when placed on the fire, can escape up the chimney and grin at his tormentors. If we ask the country people who are the fairies, the reply is frequently, "Fallen angels." According to an old woman in Donegal, these angels fell, some on the sea, some on the earth, while some remained in the air; the fairies were those who fell on the earth.