Fiachna had to do as she demanded, and, although it was with a heavy heart, he set out in three days' time for Lochlann, and he brought with him ten battalions.
He sent messengers before him to Big Eolgarg warning him of his coming, of his intention, and of the number of troops he was bringing; and when he landed Eolgarg met him with an equal force, and they fought together.
In the first battle three hundred of the men of Lochlann were killed, but in the next battle Eolgarg Mor did not fight fair, for he let some venomous sheep out of a tent, and these attacked the men of Ulster and killed nine hundred of them.
So vast was the slaughter made by these sheep and so great the terror they caused, that no one could stand before them, but by great good luck there was a wood at hand, and the men of Ulster, warriors and princes and charioteers, were forced to climb up the trees, and they roosted among the branches like great birds, while the venomous sheep ranged below bleating terribly and tearing up the ground.
Fiachna Finn was also sitting in a tree, very high up, and he was disconsolate.
"We are disgraced!" said he.
"It is very lucky," said the man in the branch below, "that a sheep cannot climb a tree."
"We are disgraced for ever!" said the King of Ulster.
"If those sheep learn how to climb, we are undone surely," said the man below.
"I will go down and fight the sheep," said Fiachna.
But the others would not let the king go.
"It is not right," they said, "that you should fight sheep."
"Some one must fight them," said Fiachna Finn, "but
