Story entitled 'Aireamh Fir Fhinn ris Dhubhain (Shuarain?)' collected from Eachunn Donullach [Hector MacDonald], Talamh-sgeir, Eilean a Cheo [Talaisgeir/Talisker, An t-Eilean Sgitheanach/Isle of Skye]. The story gives the background to the song telling how Dubhan or Suaran invited Fionn and his men to his house with the intention of killing them. His daughter, who had fallen for Fionn, got wind of this and warned him and so they were spared but when Dubhan found out he killed her immediately. The song begins 'Ceathrar o Fhionn fiachadh air tus, Airleam gur mor an aona chuis' and is composed of fifteen lines. According to John Francis Campbell, the song is a numerical puzzle 'The problem is to arrange two rival parties of 15, as to make every ninth man a foe and slay him.' (see bibliography)