When Rain Clouds Gather And Maru by Bessie Head

 Escaping South Africa and his troubled past, Makehaya crosses the border to Botswana, in the hope of leading a peaceful, purposeful life.

In the village of Golema Mmidi he meets Gilbert, a charismatic Englishman who is trying to modernise farming methods to benefit the community. The two outsiders join forces, but their task is fraught with hazards: opposition from the corrupt chief, the pressures of tradition, and the unrelenting climate ever threaten to bring tragedy. Maru: Margaret, an orphan from a despised tribe, has lived her life under the loving protection of a missionary's wife.

She has only to open her mouth to cause confusion, for her education and English accent do not fit her looks. When she accepts her first teaching post, in a remote village, Margaret is befriended by Dikeledi, sister of Maru the chief-in-waiting.

Despite making influential friends, Margaret faces prejudice even from the children she teaches, and her presence causes Maru and his best friend - also Dikeledi's lover - to become sworn enemies.