O pity of pities! He saw her, the fair Melusina, but from the waist down she was a serpent, with silvery scales, tipped with white. He covered his eyes. It was too late, and he was seized with horror, not so much at what he had seen as at the thought of how he had broken his faith. Perhaps he might yet have kept silence. But a great evil fell upon him..
The story of Melusine was a common yarn spinning tale in early France. An abridged version of the tale is as follows, a Scottish King, named Elynas, fell in love with a beautiful mysterious woman, Pressyne. He proposed to her on first sight. The woman agreed, on the condition that he would never view her bathing, or giving birth. He agreed, and they were married. However, eventually Elynas violated their agreement and peered in on his wife as she was giving birth. She was furious, and moved herself and her newborn triplet girls, Melusine, Melior, and Palatyne, out of the kingdom.
Fifteen years later, Melusine asked her mother why they had left their luxorious home and were no longer Scottish nobility. Her mother answered honestly, and Melusine was shocked and angered by her father’s disrespectful behavior. She was so angered, that she kidnapped her father and held him hostage. Her mother was terribly upset when she found out. Pressyne forced Melusine to free her father and as a punishment for her misdeeds, she was made to take the form of a mermaid every Saturday.
When Melusine is in her mermaid form, she is a beautiful woman from the waist up and either a fish or a serpent from the waist down. She is often depicted with two tails. Melusine has also famously taken the form of a dragon when threatened, so it is thought that she may be a badass shapeshifter.