The Probert Encyclopaedia of Celtic Mythology

ACRASIA

In English mythology, Acrasia was an enchantress who lived in the Bower of Bliss on the Wandering Island. She transformed her lovers into monstrous shapes and kept them captive. Sir Guyon having crept up on her, threw a net over her and bounder her in chains of adamant; then broke down her bower and burnt it to ashes.
Research Acrasia