"Dusklands" is a novel divided into two distinct parts, each examining the theme of imperialism. The first part follows a psychologically unstable American government researcher during the Vietnam War, who is tasked with developing propaganda to justify the conflict. The second part is a historical narrative set in the 18th century, exploring the violent colonization of South Africa by the Dutch. The stories parallel each other, highlighting the destructive nature of imperialism and the psychological effects it has on individuals.