In Things Fall Apart, Okonkwo is exiled because he accidentally shoots and kills Ezeudu’s 16-year-old son during Ezeudu’s funeral. Because the victim is a fellow clansman, the act is considered “a crime against the earth goddess.” Even though the killing is accidental, Umuofia law requires punishment. The clan classifies the offense as a “female” crime because “it had been inadvertent.” Under Umuofia custom, accidental “female” crimes are treated differently from intentional “male” violence. Okonkwo is therefore allowed to return after seven years instead of being permanently banished or executed. Still, the punishment is severe. The villagers burn down his compound, destroy his barns, and kill his animals as part of the ritual cleansing of the land. The men carrying out the destruction are described as “merely [the earth goddess’] messengers,” acting out of duty rather than personal hatred. Even Obierika, Okonkwo’s close friend, takes part.
The exile is devastating for Okonkwo because it interrupts everything he has worked for. He has spent his life building status, wealth, and influence in Umuofia, and exile forces him to start over in his mother’s homeland, Mbanta. He sees the punishment as proof that fate has turned against him, and during exile he grows bitter and discouraged. While he is gone, the White missionaries and colonial government gain power in Umuofia, so when he finally returns, the clan he once knew has changed permanently.
Okonkwo’s exile is an example of how personal achievement can be thwarted by larger forces. He believes throughout his life that strength and willpower determine success, yet the accidental killing of Ezeudu’s son destroys his position in a single moment and pushes him away during the period when Umuofia itself begins to “fall apart.”