"Folktales are great for learning dynamic storytelling and how to structure the resonant echoes that give a plot forward motion. It wouldn't be the last time that I modeled a plot upon the shell of a preexisting folktale. I've discovered that it doesn't matter whether your readers recognize the folktale. It may not even matter whether the folktale is real, or one you invented. What matters is that it has structure, echoes, trajectory, and style."