But he had many places of living, and he was often heard of in Ireland after. It was he sent a messenger to Etain, mother of Conaire the High King, the time she was hidden in the cowherd's house. And it was he brought up Deirdre's children in Emhain of the Apple Trees, and it was said of that place, "a house of peace is the hill of the Sidhe of Emhain." And it was he taught Diarmuid of the Fianna the use of weapons, and it was he taught Cuchulain the use of the Gae Bulg, and some say it was he was Deirdre's father, and that he brought Conchubar, king of Ulster, to the place she was hidden, and he running with the appearance of a hare before the hounds of the men of Ulster to bring them there.
And it is what they say, that the time Conchubar had brought the sons of Usnach to Emain Macha, and could not come at them to kill them because of their bravery, it was to Manannan he went for help. And Manannan said he would give him no help, for he had told him at the time he brought Deirdre away that she would be the cause of the breaking up of his kingdom, and he took her away in spite of him. But Conchubar asked him to put blindness for a while on the sons of Usnach, or the whole army would be destroyed with their blows. So after a while he consented to that. And when the sons of Usnach came out again against the army of Ulster, the blindness came on them, and it was at one another they struck, not seeing who was near them, and it was by one another's hands they fell. But more say Manannan had no hand in it, and that it was Cathbad, the Druid, put a sea about them and brought them to their death by his enchantments.
And some say Culain, the Smith, that gave his name to Cuchulain afterwards, was Manannan himself, for he had many shapes.
Anyway, before Culain came to Ulster, he was living in the Island of Falga, that was one of Manannan's places. And one time before Conchubar came into the kingdom, he went to ask advice of a Druid, and the Druid bade him to go to the Island of Falga and to ask Culain, the smith he would find there, to make arms for him. So Conchubar did so, and the smith promised to make a sword and spear and shield for him.
And while he was working at them Conchubar went out one morning early to walk on the strand, and there he saw a sea-woman asleep on the shore. And he put bonds on her in her sleep, the way she would not make her escape. But when she awoke and saw what had happened, she asked him to set her free. "And I am Tiabhal," she said, "one of the queens of the sea. And bid Culain," she said, "that is making your shield for you, to put my likeness on it and my name about it. And whenever you will go into a battle with that shield the strength of your enemies will lessen, and your own strength and the strength of your people will increase."