Story entitled 'Cu Du Mhic a Phi' [Cù Dubh Mhic a' Phì] collected from Archibald Currie, shoemaker, Àird na Monadh, Uibhist a Deas/South Uist. The story tells of the wife of the shepherd called Mac a' Phì who lives by Loch Ollabhat and is asked to provide cloth by a lady at Loch Olabhat/Loch Olavat and Bailemhanaich/Balivanich both Beinn na Faoghla/Benbecula. She panics that she will not be able to meet the task and summons the fairies to help. Realising that it was probably unwise to enlist the help of the fairies, the shepherd goes to an old man for advice and is told to pretend that there is a fire in Dùn Bhuilg [Dùn Bhuirg or Sìdhean Bhuirgh] and then set his black dog on the fairies as they run to rescue their home. So Mac a' Phì does as the old man advises, the fairies throw down their work and run for Dùn Bhuilg and he sets his black dog on them. The next day the black dog appears at Loch Olabhat traumatised.