When Roy G. Biv, a leprechaun, appears and asks Colleen's help in saving the St. Patrick's Day parade, she offers items of different colors to rebuild his lost rainbow, but is reluctant to part with a special gift from her grandfather.
Jack Frost steals the Petal Fairies' magical petals, which puts flowers everywhere in danger, and readers are asked to help save Fairyland by finding Charlotte the Sunflower Fairy's petal in a sea of sunflowers.
Describes the science of rainbows, different kinds of rainbows, technologies used to study the sky, rainbow folklore and proverbs, and the rainbow discoveries of Ren? Descartes, and includes a hands-on exploration.
