Happiness is a planet with a moon, but it’s disappeared. At the same time as the moon vanishes all radio communication to and from the planet is blocked. An unseen force destroys any craft that tries to leave.
Those investigating the critical situation seem distracted by their own scientific and political ambitions. Chief Inspector Eldon Boone is after a gang of fraudsters, ex-gymnast Petra Fanne craves a life in the City, and Tulla Yorke seeks friendly contact with another intergalactic species. Between some of the humans there is love, or at least the beginnings of love.
Overcoming the unknown is critical to the survival of Happiness. Can its citizens ever leave their system again? Or are they destined to a live forever trapped on their home planet?