On a day Fin MacCumhail was near Tara of the Kings, south of Ballyshannon, hunting with seven companies of the Fenians of Erin.
During the day they saw three strange men coming towards them, and Fin said to the Fenians: "Let none of you speak to them, and if they have good manners they 'll not speak to you nor to any man till they come to me."
When the three men came up, they said nothing till they stood before Fin himself. Then he asked what their names were and what they wanted. They answered:—
"Our names are Dubh, Dun, and Glasán [Black, Brown, and Gray]. We have come to find Fin MacCumhail, chief of the Fenians of Erin, and take service with him."
Fin was so well pleased with their looks that he brought them home with him that evening and called them his sons. Then he said, "Every man who comes to this castle must watch the first night for me, and since three of you have come together, each will watch one third of the night.
