Story entitled 'Alastair Arranach agus Alastair Auinn' which tells how Uistean Mor Mag Onail and MacLeod were travelling together and they met a woman in Arran with whom they both slept. She had twins but did not know who was the father of them so it was decided that the first son had been fathered by Uistean Mor who had slept with her first and the second by MacLeod. They boys were raised separately but the first time they met was when one was trying to push a boat into the water and the other was trying to push it back to land and 'they pressed & squashed until their backs met'. One demanded of the other who he was that he should 'obstruct his father's son' and thus discovered that they were brothers.