Sometimes, a big problem calls for a hero or two ... or maybe even hundreds of tiny heroes Large and small creatures alike live in the dark forest and safeguard the trees, plants, and the East and West Rivers. There are the ants and spiders, the little guardians on the ground; the shy horse with the heart of gold; a bat called Ivan; buzzing, busy bees; and a beautiful, glowing fish named Alice Mae. But the East River has grown dark and ugly, poisoned...