Then the men of Ireland debated as to whom they should send to fight and do combat with Cú Chulainn at the hour of early morning on the morrow. They all agreed that it should be Calatín Dána with his twenty-seven sons and his grandson Glas mac Delga. Now there was poison on each man of them and poison on each weapon that they carried; none of them ever missed a throw, and anyone whom one of them wounded, if he died not at once, would die before the end of nine days. Great rewards were promised them for this fight and they undertook to engage in it. This agreement was made in the presence of Fergus but he was unable to dispute it; for they said that they counted it as single combat that Calatín Dána and his twenty-seven sons and his grandson Glas mac Delga should all engage in the fight, for they asserted that his son was but one of his limbs and one of his parts and that the issue of his own body belonged to Calatín Dána.
Fergus came forward to his tent and followers and heaved a sigh of weariness. We are sad for the deed to be done to- morrow said Fergus. What deed is that? asked his followers. The killing of Cú Chulainn said he. Alas! said they, who kills him? Calatín Dána said he, with his twenty seven sons and his grandson Glas mac Delga. There is poison on every man of them and poison on each of their weapons, and there is none
Cú Chulainn raised his head and drew his breath and gave a sight of weariness, and then he saw the man who had come to his help. It is timely aid, my fosterbrother said Cú Chulainn. Though it be timely aid for you, it will not be so for us, for though you think little of the blow I struck, yet if it be discovered, the three thousand men of the finest of Clann Rudraige that we number in the camp of the men of Ireland will be put to the sword. I swear said Cú Chulainn, now that I have raised my head and drawn my breath, that unless you yourself make it known, not one of those yonder shall tell of it henceforth. Then Cú Chulainn fell upon them and began to strike them and to cut them down, and he scattered them around him in small pieces and divided quarters, east and west throughout the ford. One of them, Glas mac Delga, escaped by taking to his heels while Cú Chulainn was beheading the rest, and Cú Chulainn rushed after him, and Glas
They made quick work of yon man said Medb. What debt did he speak of, Fergus? I do not know said Fergus, unless perhaps some one in the camp owed him debts and they were on his mind. However said Fergus, it is a debt of flesh and blood for him. I swear indeed said Fergus, that now all his debts have been paid in full to him.
Thus fell at Cú Chulainn hands Calatín Dána and his twenty-seven sons and his grandson Glas mac Derga. And there still remains in the bed of the ford the stone around which they fought and struggled and on it the mark of their sword hilts and of their knees and elbows and of the hafts of their spears. And the name of the ford is Fuil Iairn to the west of Áth Fhir Diad. It is called Fuil Iairn because swords were bloodstained there.
Thus far the Encounter with the Sons of Calatín.