Fantasy story transformation

Transforming my fairy tale into a teen vampire story was actually not very easy. The whole plot line of a fairy tale differs completely from that of a teen vampire one.The teen vampire series does not have a moral lesson for one, and does not have nearly as much substance in my opinion. However, the setting of a fairy tale can be altered to pretty much anything so that aspect wasn't too difficult to change.The characters were not either, I simply changed the main character of the fairy tale to a vampire. The story did have to be completely re written and only slightly resembles the fairy tale overall.