Descended from the river goddess Melusina, Jacquetta is blessed with second sight. As a young girl, she meets her uncle's captive, Joan of Arc, and realizes that they share the same abilities right before Joan's horrific death. Eventually, she is married off to the Duke of Bedford, and is introduced to alchemy. When the Duke dies, the talented window finds love in the arms of her friend, the Duke's squire Richard Woodville.