Green Thumb

Winner of two National Science Fairs for his work on plant life, thirteen-year-old Grady Jacobs isn't exactly Mr. Popularity. But he doesn't care. He's spending the summer with the famous botanist Dr. Phillip Carter in the Amazon jungle trying to save the rain forest with a new species of super trees. Although his duties are mostly relegated to kitchen patrol, Grady stumbles on a startling discovery: a binary system of sounds that enables him to control the movement of trees.
Even as Grady d...