Right off the bat I can see the similarities between Undine and Melusina: two water spirits/mermaidesque creatures who get married to mortal, human men and then eventually reveal their true selves. But it deviates because Undine willingly revealed it to her husband, whatever his name was (Huldbrand?) after they had gotten married. There’s still that strong element of The Other infiltrating (through the dreams): “Wonderful and horrible dreams had disturbed Huldbrand’s rest; he had been haunted by spectres, who, grinning at him by stealth, had tried to disguise themselves as beautiful women, and from beautiful women they all at once assumed the faces of dragons….” (102)

This could be some sort of premonition, but also to me it reflects the fear the patriarchy has with women who are also pretty. Thats a very surface level interpretation, I know. At the same time, I think it’s also a reflection of how people are afraid of their true selves, or the true selves of other people. That there is a nasty side, a dangerous side. There’s a huge contrast between these really scary nightmares Huldbrand is having, and then how pretty and dainty and lovely Undine is. It could be a testament to how the true nature of things is something people fear? Coming back to comparing Undine and Melusina, the thing they have in common is this fear of the Other, even when a couple are married. Discovering your wife (because we have only seen stories where the wife is a Creature and not the husband) is not what she seems is a reoccurring thing.

Also side note: very interesting seeing this story and having played Undertale becuase there is an NPC called Undyne who is a fish monster (could you call her a merperson?) who is the literal opposite of how Undine is described in her folklore. Interesting to see how meanings deviate or how people take inspiration from old things and make them into new things.