'It is easier indeed to me than to you,' said Cuchulainn; 'for I have three gifts, the gifts of eye, and of mind, and of reckoning. I have put a reckoning [Marginal gloss: 'This is one of the three severest and most difficult reckonings made in Ireland; i.e. Cuchulainn's reckoning of the men of Ireland on the Tain; and ug's reckoning of the Fomorian hosts at the battle of Mag Tured; and Ingcel's reckoning of the hosts at the Bruiden Da Derga.'] on this,' said he; 'there are eighteen cantreds,' said he, 'for their number; only that the eighteenth cantred is distributed among all the host, so that their number is not clear; that is, the cantred of the Leinstermen.'
Then Cuchulainn went round the host till he was at Ath Gabla. [Note: LU has Ath Grena.] He cuts a fork [Note: i.e. fork of a tree.] there with one blow of his sword, and put it on the middle of the stream, so that a chariot could not pass it on this side or that. Eirr and Indell, Foich and Fochlam (their two charioteers) came upon him thereat. He strikes their four heads off, and throws them on to the four points of the fork. Hence is Ath Gabla.
Then the horses of the four went to meet the host, and their cushions very red on them. They supposed it was a battalion that was before them at the ford. A troop went from them to look at the ford; they saw nothing there but the track of one chariot and the fork with the four heads, and a name in ogam written on the side. All the host came then.
'Are the heads yonder from our people?' said Medb.
'They are from our people and from our choice warriors,' said
Ailill.
One of them read the ogam that was on the side of the fork; that is: 'A man has thrown the fork with his one hand; and you shall not go past it till one of you, except Fergus, has thrown it with one hand.'
'It is a marvel,' said Ailill, 'the quickness with which the four were struck.'
It was not that that was a marvel,' said Fergus; 'it was the striking of the fork from the trunk with one blow; and if the end was [cut] with one blow, [Note: Lit. 'if its end was one cutting.'] it is the fairer for it, and that it was thrust in in this manner; for it is not a hole that has been dug for it, but it is from the back of the chariot it has been thrown with one hand.'
'Avert this strait from us, O Fergus,' said Medb.
Bring me a chariot then,' said Fergus, 'that I may take it out, that you may see whether its end was hewn with one blow.' Fergus broke then fourteen chariots of his chariots, so that it was from his own chariot that he took it out of the ground, and he saw that the end was hewn with one blow.