In this month's Africa: Stories in the 55, we speak to the authors of two historical novels, both set in the 20th century. Fred Khumalo's "Dancing the Death Drill" deals with the South African ship the S.S. Mendi, which was sunk in the waters off of the UK, killing 618 black South African soliders. In "Harvest of Skulls", Abdourahman Waberi, a Djiboutian writer, goes to Rwanda after the 1994 genocide and writes his novel based on the stories of the people he meets.