Rosie takes a walk in the woods with grandma’s black Labrador Hattie. A pleasant walk develops into a journey to a distant planet accompanied by a Troll called Thumblerock. He was waiting for her under an old bridge which runs underneath the footpath. Every three generations a child of eleven or twelve is secretly whisked away to a world called Damianos. A planet found in the Star Cluster of Pleadies which is populated by a species of technologically advanced Trolls. The children are taken to assess the development of a species. Rosie soon understands that her trip is far from the usual. Environmental issues on Earth created by humans are not only damaging our planets environment, but they’re 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 are drawn into a mystery of galactic proportion with serious implications for the human race.