Ancestor Stones by Aminatta Forna is quite simply an excellent novel. It follows the lives of four sisters born and raised in Sierra Leone in the 20th century. As with Things Fall Apart the book has a uniquely African voice and talks about many things from female circumcision and polygamy and education to Christianity and Islam.
Forna is an excellent writer and Ancestor Stones is unquestionably recommended. I'm so glad I stumbled on it. Forna also wrote The Devil That Danced on the Water, a memoir of her father who was executed in Sierra Leone for his political activities that got many positive reviews, although I haven't been able to find it yet.