Realms of the Unreal

'In The Realms of the Unreal Darger's work contains many religious themes, albeit handled extremely idiosyncratically. In The Realms of the Unreal postulates a large planet around which Earth orbits as a moon and where most people are Christian (mostly Catholic). The majority of the story concerns the adventures of the daughters of Robert Vivian, seven sisters who are princesses of the Christian nation of Abbiennia and who assist a daring rebellion against the evil John Manley's regime of child slavery imposed by the Glandelinians.'

From:
www.wikipedia.org

> de niet-zichtbare wereld, Built on dreams