الوصف
Frank Baum was a famous author of children's books. He is best noted for his book The Wizard of Oz. Baum used several pen names when writing different series. He used the pen name Edith van Dyke when writing books for adolescent girls. Sky Island is the sequel to The Sea Fairies published in 1911. Trot lives in southern California where she meets a little boy with an umbrella. Button Bright uses his family's magic umbrella to go on adventures.