What did Okonkwo bring home from his trip to Mlbaino?

Okonkwo brought home a captive boy named Ikemefuna from his trip to Mbaino. The boy was taken as part of a settlement for a crime committed by his village, which involved the murder of a member of Okonkwo's clan. Okonkwo later becomes fond of Ikemefuna, who lives with his family for several years before facing a tragic fate.