6 Books Found

Based on your description:

"Book was written between 1990 and 2007. An elf helps teenage girl avoid dangers on the mysterious island she shipwrecked on. She discovered mystical creatures do exist and that they were exiled to the island after they lost a war centuries ago. The island is uncharted and has a magical force field to prevent humans from discovering the island. The evil…"

Long description shortened for display.