Rhianwen smiled, but made sure to quickly cover it with a smirk. So Alexander knew his tales did he? She almost laughed, for she was impressed, but knew she still held the crown for most well-versed in folk tales. He had made a very good guess, but she recognized his tale as a far different one than the one she told. No matter, she would play along. Her tale was of the earl's daughter Janet and the elfen knight Tam Lin, who was captured as a mortal.

((will finish post once I research the other story. in the meantime, if you've never heard/red it, this is the story i was referring to:

Tatterhood and other tales: stories ... - Google Books ))