How does Tambu’s mother, Mainini, react to her son’s death? On what or whom does she blame his death?

Maiguru comforts Nhamo's mother and Jeremiah cries, but Tambu is not sorry Nhamo has died. Babamukuru suggests taking Tambu to school in Nhamo's place, but Ma'Shingayi objects because she doesn't want to lose another child. However, the men eventually decide that Tambu shall leave for the mission school. While Tambu is elated, her mother becomes thoroughly depressed and cannot eat or work.