Rosie takes a walk in the woods with Grandma’s Labrador Hattie. This develops into a journey to a distant planet accompanied by a Troll called Thumblerock. He’s waiting for her in an old tunnel which runs underneath the footpath. Every three generations a child of eleven or twelve years is secretly whisked away to a world called Damianos. A planet found in the Star Cluster of Pleadies and populated by technologically advanced Trolls, who can also talk to animals.The reason for these visits is to assess the development of a species through its children. Rosie soon discovers her trip is far from usual. Environmental issues on Earth created by humans are not only destroying the Earth. They are also upsetting the balance of a galactic transport network. The Trolls who lead an alien planetary council are campaigning to have the Earth gate closed, a simple solution to resolve their problem. As Rosie is the only human to have travelled to Damianos in seventy years, the sudden discovery of another human boot print on this planet throws the Trolls plans into disarray. Rosie and Thumblerock discover a plot to exploit the Earth’s resources and prevent our civilisations development.