Back in something like the 1600s or 1500s, there was a wealthy family around here called the Fergusons, members of the greater Ferguson clan. The patriarch of the family was a baronet or something like that. One day, his son went missing and was nowhere to be found. The general consensus became that the Fairies had taken him. The Fergusons then went to the local wizard who, for some form of payment, agreed to find and retrieve their son.
The wizard then went to the local fairy fortress of "Dun Dhia" or something like that, "The Fort of God". There he found the child amongst the fairies during a dance, unable to leave their circle. The wizard threw an apple on a string into the middle of the dance to entice the child, who reached for it, only for the wizard to pull it away. The child was eventually led out of the circle and into the arms of the wizard. The fairies suddenly realised that they had lost the child and became wild and monstrous, chasing the wizard with the intention of catching him and doing god know's what. The wizard reached into his bag and threw a strange powder onto the ground that forced the fairies to pick up every grain of it. This provided enough of a distraction for him to take the child across running water, something the fairies could not cross. The child was returned to the family who were forever grateful.
Another story was one I've heard about the Baobhan Sidh. Three men were travelling and stopped for the night near a stone circle and set up camp. As they sat around the campfire some beautiful women approached them. The magnetism they had was irresistable, and two of the men agreed to dance with them. One of the men declined, sensing something was amiss. The women danced with the men throughout the night while the third man watched. As the night wore on, the dance became wilder and rougher. More physical. Eventually the women started to scratch the men, who were unable to stop dancing. Though they screamed as their blood poured out of them through the deep cuts made by the women's razor sharp claws, they could not stop dancing. The third man, unable to save his friends, hid amongst the horses as he realised what the women were. The baobhanan could not touch him amongst horses, so he hid there until morning. Then, as he approached the fireplace where the men and the fairies had been dancing, he saw their corpses completely drained of blood. The baobhanan had had their fill.
There are more stories, like one about three fairy workers who would work indefinitely for you until you thanked them, then you'd never see them again. Others involved a witch carrying a huge boulder across a glen when a minister below her began to pray, making the rock heavier and heavier, thus forcing her to drop it. Another involved a man who was turned into a horse by a witch and ridden to France and back in a night, hence the expression "hag ridden". One of the most important from this area involved another monster called the "baobh", so perhaps there's a link with the baobhan sidh (bavanshee). She was a mermaid or something who used to steal sheep and kill them, and torment the local village. The villagers could not see her for she was invisible, but then the village tailor saw her through the holes in his scissors. They used that to chase her up to a loch where they subsequently buried her under an enormous cairn of stones, one for every sheep she stole. She died horribly.