The Combat of Munremar and Cú Roí

When the hosts were there in the evening, they saw one stone thrown at them from the east and another thrown to meet it from the west. The stones collided in the air and they kept falling between Fergus's camp and that of Ailill and that of the Érainn. This performance went on until the same time next day, and the hosts were standing, holding their shields over their heads to protect them from the battle-stones, until the plain was full of stones. Hence the name Mag Clochair. In fact it was Cú Ruí mac Dáire who had done this; he came to help his followers and he was in Cotail facing Munremar mac Gerrcinn. Munremar had come from Emain Macha to Ard Róich to the assistance of Cú Chulainn. Cú Roí knew that there was no one in the army who could withstand Munremar. So they both carried on this performance (with the stones). The host begged them to desist. Then Munremar and Cú Roí made peace and Cú Roí went to his house while Munremar returned to Emain Macha and did not come (again) until the day of the great battle. Cú Roí, however, did not come until the fight with Fer Diad.

‘Ask Cú Chulainn,’ said Medb and Ailill, ‘to allow us to move camp.’ They were given permission and they moved camp. By this time the debility of the Ulstermen was at an end. As they awoke from their torpor, some of them kept still attacking the army until they were once more smitten by their affliction.