Andrew and his family visit the saguaro forest. Something strange happens to Andrew; he finds himself in the forest talking to animals and discovers he has a cactus growing out of his head. He makes friends with the animals, who help him navigate the forest to find help for his cactus problem. The whole thing turns into quite an adventure, with surprises at every turn. The story was inspired by a photograph taken of the author's son while the family was on vacation in southern Arizona. It's not hard to see why the photo is the basis for this whimsical tale.