Two very different sisters have two very different encounters with the fairy Ethelinda. Rosella is kind and helpful. Her reward: Jewels and gems tumble out of her mouth whenever she speaks. Myrtle is rude and spiteful. Her punishment: Bugs and vipers slither out of her mouth. The fairy Ethelinda feels she's meted out justice just right--until she discovers Rosella has been locked up by a greedy prince and Myrtle is having the time of her life. Illustrations.