Departing from the standard line of exotic adventure novels, Black Sun is a politico-romantic tale which takes place on the semi-Frenchified, semi-primitive Caribbean island of St. Joseph. Opening with the story of a young American writer who retires to live on this island about which he has already written a book, the author weaves in addition the interlacing plots of amorous and political intrigues which ultimately plunge the tiny republic into a state of violent and destructive chaos. The unpolished style does not detract from this sensitive and perceptive portrayal of the nature and conflicts of a people constituted partly of unmitigatedly basic natives and a cultured elite, often traceable to French ancestry. Cave's understanding of the country's needs and constructive possibilities of amelioration is demonstrated indirectly in his description of often ignorant and savage peasants, power-drunk and ambitious politicians, and well-meaning but unrealistic aristocrats. The reader's interest is sustained from the start and develops later into an engrossed fascination by the passionate and fast-moving denouement. Not profound, but discerning, this novel is of interest and excitement to the reader who has tired of the superficial and often puerile adventure story.