In my first book of the series, "Wigglys and Skypie Visit the Pollution Planet," Wigglys and Skypie are introduced as little brother and sister Martian twins, who are adventurous, spunky and fun loving. They travel through the universe in search of other planets in need of their help. In this adventure they have a mission to clean up a dirty old planet called the Pollution Planet. This planet is dying because of all the toxic garbage! Their trees and flowers are lifeless and their oceans are all brown and filthy with poisonous chemicals! Their bees don't buzz, their birds don't sing, their cows don't moo, and their sun doesn't shine! Wigglys and Skypie help them "go green" and restore their dying planet to a place of beauty and cleanliness; where they will live forever in peace and harmony.