In _Serglige Conculaind_, "Cúchulainn's Sickness," the goddess Fand, deserted by Manannan, offers herself to the hero if he will help her sister's husband Labraid against his enemies in Mag Mell. Labraid lives in an island frequented by troops of women, and possessing an inexhaustible vat of mead and trees with magic fruit. It is reached with marvellous speed in a boat of bronze. After a preliminary visit by his charioteer Laeg, Cúchulainn goes thither, vanquishes Labraid's foes, and remains a month with Fand. He returns to Ireland, and now we hear of the struggle for him between his wife Emer and Fand. But Manannan suddenly appears, reawakens Fand's love, and she departs with him. The god shakes his cloak between her and Cúchulainn to prevent their ever meeting again.[1237] In this story Labraid, Fand, and Liban, Fand's sister, though dwellers on an island Elysium, are called _síd_-folk. The two regions are partially confused, but not wholly, since Manannan is described as coming from his own land (Elysium) to woo Fand. Apparently Labraid of the Swift Hand on the Sword (who, though called "chief of the _síde_", is certainly a war-god) is at enmity with Manannan's hosts, and it is these with whom Cúchulainn has to fight.[1238] In an Ossianic tale several of the Fians were carried off to the Land of Promise. After many adventures, Fionn, Diarmaid, and others discover them, and threaten to destroy the land if they are not restored. Its king, Avarta, agrees to the restoration, and with fifteen of his men carries the Fians to Erin on one horse. Having reached there, he bids them look at a certain field, and while they are doing so, he and his men disappear.[1239] 3. _Land under Waves._--Fiachna, of the men of the _síd_, appeared to the men of Connaught, and begged their help against Goll, who had abducted his wife. Loegaire and his men dive with Fiachna into Loch Naneane, and reach a wonderful land, with marvellous music and where the rain is ale. They and the _síd_-folk attack the fort of Mag Mell and defeat Goll. Each then obtains a woman of the _síde_, but at the end of a year they become homesick. They are warned not to descend from horseback in Erin. Arrived among their own people, they describe the marvels of Tír fa Tonn, and then return there, and are no more seen.[1240] Here, again, the _síd_ Elysium and Land under Waves are confused, and the divine tribes are at war, as in the story of Cúchulainn. In a section of the Ossianic tale just cited, Fionn and his men arrive on an island, where Diarmaid reaches a beautiful country at the bottom of a well. This is Tír fa Tonn, and Diarmaid fights its king who has usurped his nephew's inheritance, and thus recovers it for him.[1241]