The Mask, by C Louise Leipoldt (used)

The Mask is set in a village recognisable as Clanwilliam in the Union of South Africa, formerly the Cape Colony where the author grew up in the 1880s and 1890s. 

A young woman returns to her village as an ardent nationalist after qualifying as a doctor in London; a bittereinder who left the Transvaal Republic for the Argentine after the Anglo-Boer War returns to his grandfather's village, a critical expatriate; the local villagers pursue their lives; and the resulting issues of patriotism, language, race, religion, culture, politics and morality, so endemic to South Africa, combine as the action of the story builds to a deeply moving climax.

condition: very good (light damage; scratches on cover)