When Sam Moorcroft clambers out of the observation trench and walks into the Ely Project enclosure he knows that his life has changed forever. If he is caught the penalty will be chemical curtailment or worse. Sam survives on his wits among the enclosure subjects. He works alongside them in their mills and farms, drinks with them in their pubs, celebrates with them in their festivals honouring their strange gods, and eventually falls in love with Smith, the tough young woman who takes him in and cares for him. No one guesses Sam’s secret, that he from the beyonds where the demon lives and where no one decent would dare to travel, even in their thoughts.One day, however, Sam is snatched back to the world he came from, a world of horrors worse even than the demon, where the state thinks nothing of holding men and women in the subtle slavery of the enclosure for the sake of science and entertainment. Far from being punished, Sam is offered the opportunity to return to enclosure again and again in the service of the government. The offer, to join the elite company of Interlanders who walk in two worlds, is overwhelmingly tempting. Sam must decide quickly who he loves and who he is prepared to betray.To live your life in fear of the demon is terrifying. To become the demon is much, much worse…