The novel is based on a violent event that took place on Palm Island, Queensland (called Doebin in the novel) in 1930, in which the white Superintendent of the settlement, Robert Curry (Brodie in the novel), ran amok, setting fire to buildings and killing his own children in the process. He was eventually shot dead by one of the indigenous inhabitants, Peter Prior (Manny Cooktown in the novel), under orders from the white deputy Superintendent. Astley focuses most of the novel on various white characters who were present on the Island at the time, but intersperses their experiences with briefer passages spoken by the Aboriginal man, Manny Cooktown.
The novel spans a long time period, from 1918 when the settlement was established to 1957 when Aboriginal workers went on a strike, but most of the action takes place after 1930.