He caused, therefore, many great hurdles to be made, and these were set in the river, and over them a causeway of boughs was laid, so that his cattle and spoils came safely across.

Hence is the town of that place called to this day in Gaelic the City of the Hurdle Ford.
On the next day Conor and the Ulstermen met him, but a great force of the men of Leinster was also marching from Naas to the border, to recover their womenfolk, even as Atharna had expected.

The Leinstermen then broke the battle on the company from Ulster, and defeated them, driving them with the cows of Atharna on to the sea cape of Ben Edar (Howth), but they recovered the women.

On Ben Edar did King Conor with the remnant of his troop then fortify themselves, making a great fosse across the neck of land by which Ben Edar is joined to the mainland, and here they were besieged, with hard fighting by day and night, expecting that help should come to them from Ulster, whither they had sent messengers to tell of their distress.
Now Conall of the Victories was left behind to rule in Emania when Conor set forth to Leinster, and he now, on hearing how the King was beset, assembled a great host and marched down to Ben Edar.

Here he attacked the host of Leinster, and a great battle was fought, many being slain on both sides, and the King of Leinster, Mesgedra, lost his left hand in the fight.