American society has become so hostile to orthodox Christian principles that the faithful have no option but to walk away and create new communities. This is the arresting proposition at the centre of an apocalyptic book that has been generating many creative conversations in the United States. The American critic David Brooks has called it “the most discussed and most important theological book of the decade”.

Why people have to walk away and what they must do to create these new communities is the subject of this breathless call to action.