The document discusses Ngugi wa Thiong'o's novel A Grain of Wheat. It provides context about the author and characters in the novel. The main characters discussed are Mugo, Gikonyo, Mumbi, Karanja, and Kihika. Mugo is the protagonist who was respected for leading a hunger strike but struggles with his identity. Gikonyo is an ambitious businessman married to Mumbi, while Karanja betrays the freedom movement. Kihika is a religious leader who becomes a martyr for Kenyan independence. The novel depicts the effects of British colonialism and sacrifices made for Kenyan independence through these characters and their relationships and actions.