A boy named Arthur is happy in solitude with his castle and his horse named Adelius. He finds secret cave through which can lead to the other world. At first he finds a place called Riverdin where he finds his true love named Aliya. He finds a forest which is ruled by Goddess Enki. They worship a tree which heals the forest. Soon an ascension happens and animals make their own civilization. They leave the forest and while coming back to the Earth they come to New York. They discover Earth has seven spheres inside it which are home to other civilizations. They save second sphere ruled by Elves from a meteor attack. Soon they live happily ever after they discover there their home and Riverdin lies on third sphere.