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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 discovers the tree language, he realizes that Carter's super trees aren't replenishing the Amazon's ecosystem -- they're killing it. When his unauthorized experiments are discovered, Grady flees from Carter's camp and finds refuge with the Urah-wau Indian tribe. but even with the tribe's help and the secret tree language, can Grady stop Carter's super trees?

With his keen eye for popular culture now trained on the environment, award-winning author Rob Thomas tells a coming-of-age story bursting with action and adventure. Hang on to that vine: It's going to be a wild ride.