Trespass on a sacred place is implied in the story of Eochaid, who eloped with his step-mother. Oengus, in disguise, told him not to camp on his meadow; and when he persisted, the god sent plagues upon him, killing his cattle and horses, and threatening to slay his household if he would not go. Oengus then gave him a horse on which to depart with his goods, and the lake which was formed afterward from the bursting of an uncovered well produced by the micturation of this horse drowned Eochaid and all his household, save his daughter Liban. This, as well as the similar story told of Eochaid's brother Rib, who trespassed on the ground of Oengus and Midir, has affinity with tales of the bursting of a sacred well upon the impious trespasser, as in the legend of Boann.11
In another story Oilill pastured his cattle on the exterior of a síd, the grass of which the síd-folk now destroyed. While Oilill watched there with Ferchess, he saw fairy cattle leaving the síd, followed by Eogabal, son of its King, and his daughter Aine. Eogabal was slain by Ferchess, and Aine was outraged by Oilill, but she struck his right ear, leaving no flesh on it, whence his epithet "Bare Ear." Aine promised vengeance, which was wrought thus. Eogan, Oilill's son, and Lugaid mac Con heard music proceeding from a yew formed by magic as part of the means employed for vengeance, and in it was found a little harper, who was brought by them to Oilill. Before he went away, however, he made contention between Eogan and Lugaid; the latter was slain, and this caused the battle of Mag Mucrime, where Oilill's seven sons perished.12 In this story gods are within men's power, though the latter cannot finally escape punishment. So also is it in the tale of Macha, "sun of women-folk," daughter of Midir, or of Sainred, son of Ler, who came to the house of the rich peasant, Cronnchu, and served him, bringing him prosperity and living with him as his wife. Cronnchu went to a feast of the Ulstermen, but was bidden by Macha not to say an imprudent word or mention her name. At the horse-racing, however, he boasted
