"The Fairy's Mistake" is the first story in a two volume set of six stories called The Princess Tales by Gail Carson Levine.[1] Published in 1999, two years after her Newbery Honor winning novel Ella Enchanted, "The Fairy's Mistake" follows along the same lines by taking the well-known fairytale Diamonds and Toads and turning it on its head.[2] The story focuses on identical twin sisters Rosella and Myrtle, whose respective rewards and punishments end up doing exactly the opposite of what was intended.[3]