Georgia has grown up loving stories of adventure - but she's never allowed to have one of her own. Her adopted father won't even let her leave the city of Angleston. So Georgia creates inventions with her donkey friend, Ponky, waiting for the day she'll finally be able to see the world outside. But then everything changes. A strange bottle washes up on the shore of Angleston, promising an adventure that Georgia can't resist. It will take her on a journey to the edge of the world.