Bestselling classic book series and top-rated TV Show! More than 5 million Arthur Adventures sold! Celebrate Earth Day all year round with this funny story featuring Arthur, who's finding new and creative ways to help save the planet. When Arthur comes starts sneaking around the house, taking notes, and talking about a "Big Green Machine", D.W. starts getting suspicious of her brother's weird behavior. And when Arthur shows up late for dinner with green hands, she
really gets the creeps!
But it turns out Arthur is working on something for the good of the world--and a poster listing all the ways to save energy at home and go green is just the first step.