Beautiful Pressyne and Elynas, King of Albany, met in the forest; she would only marry him on the condition that he would never enter her chamber when she gave birth or bathed their children.  She gave birth to triplets; Elynas broke the taboo – and Pressyne took her daughters and went to the lost island of Avalon. On their fifteenth birthday, they learnt of their father’s betrayal; Melusine swore revenge – and she and her sisters locked their father with his riches inside a mountain. Pressyne flew into a rage and condemned Melusine to be transformed into a half-woman, half-serpent every Saturday. Then Melusine met Raymond of Poitou. He proposed marriage and Melusine agreed, on condition that he must never enter her chamber on a Saturday.  Can the promise be kept this time?