The first of three tales introduces the most beautiful fish in the sea, whose scales shimmer in all the colors of the rainbow. He is admired – and resented – by the entire underwater world, until a clever octopus advises him to give each fish one of his scales. Further adventures follow as The Rainbow Fish finds the courage to explore the great unknown deep sea, discovering a new world with wonderful sights and friendly creatures of all shapes, sizes and colours who are ea-ger to make his acquaintance. The underworld wonderland is the setting for an introduction to the concept of opposites. As a fitting finale, the story ends with the most satisfying opposite of all—give and take—as Rainbow Fish shares one of his shining scales with a friend.