Other historical fiction I recommend: Anything by Mary Renault (The Last of the Wine, Fire from Heaven, etc.) The Great Train Robbery, by Michael Crichton
Other books about this period in Africa I recommend: Things Fall Apart, by Chinua Achebe (which I WAS forced to read for school, and still liked)
It seems a pity that many young people are forced to read this book in school; hopefully they will return to it when they have the maturity to understand and appreciate it.