Melusina was the most famous of fairy creatures of French mythology.
Condemned to turn into a Serpent from the waist down every Saturday night.
As such, she made her husband Count Raymond of Lusignan promise never to come near her on a Saturday night.
Finally, her husband hid himself and witnessed his wifes transformation.
As such, Melusina was forced to quite her mortal husband and destined to wander about as a specter until the day of doom.
She became the Banshee of Luignan.
Mystic Creatures
WITCHCRAFT
Paralumun New Age Village