[Private]
Marianne seemed quite clear on who she is, and who you are as well. She spoke about your father. If it's a delusion of a troubled mind, it's a remarkably coherent one.
Such occurrences in my time are usually taken as a distinct connection, or a sharing of genes in some cases. But there is a widespread use of magic or other means in some other worlds; I have never seen a curse like Euphie's either. Why wouldn't I believe her?