Half cricket, half human child, Robinson is a violonist. He lives in the forest in the "middle of the world," home to fascinating trees that can laugh and play the flute. But for the Loggerbots, this forest is worth no more than the wood they can get from it to build their fearsome weapons. Robinson manages to set them on fire. With his violin and help from the root folk, our young hero will save the forest's last three trees: the Tree of the Sun, the Tree of the Moon, and the Tree of Life.