Red Caps, Dunters & Powries
The Red Cap is one of the most dangerous supernatural creatures said to haunt the castles and watchtowers of the border regions.
In appearance they are short and wiry, with ragged pointed teeth and sharp claws like steel. They wear a red bonnet on their heads, and are generally bearded with wrinkled aged faces.
The Red Caps are murderous, and kill by rolling boulders or tearing at people with their sharp claws. They then proceed to drink the blood of their victims and dip their hats in the blood, giving rise to the name of Red Caps.
In particular they haunt castles with a reputation for evil events in the past. In the folklore and legend of Hermitage Castle in Roxburghshire, Bad Lord Soulis, a man with an evil reputation is said to have had a named Red Cap as a familiar.
Dunters & Powries are virtually indistinguishable from the Red Caps, as are the Dunters, who haunt castles with the constant sound of beating flax.
It has been suggested that these spirits are the memories of foundation sacrifices, a custom that was practised within written history; see Church Grim.