The Late Bourgeois World by Nadine Gordimer

Liz Van Den Sandt's ex-husband, Max, an ineffectual rebel, has drowned himself. In prison for a failed act of violence against the government, he had betrayed his colleagues.

 

Now Liz has been asked to perform a direct service for the Black Nationalist movement, at considerable danger to herself. Can she take such a risk in the face of Max's example of the uselessness of such actions? Yet ... how can she not?