'Tomorrow is a novel within a novel. Knarf (read it backwards and remember Dalby Davison) is a 24-century novelist who has written an historical novel about a group of Sydney people in the 20th century.
'His story begins in the 20s, runs through the Depression, faithfully describes the course of WWII until the time when the date catches up with the story, and Marjorie had to begin to prophesy'. Source: review 'The Censorship of Yesterday Hid a Great Tomorrow'.
For further information see Cairns, Geoffrey : Access Denied : A Bibliography of Suppressed Australian Literature. p. 6