Suitable for children from 8 to 12 years of age, the story follows the life of John Muir from age 8 to age 42. John Muir was an important figure in the field of conservation, founder of the Sierra Club, and advisor to presidents in the protection of western lands from over-development. He was a deeply spiritual man, who felt strongly about caring for plants and animals. He serves as a model of one who lived life free from fears and limitations.