C. S. Forester 
The Sky and the Forest [EPUB ebook] 

Loa was not just king of his Central African tribe, he was a god to his people. He controlled life and death in his village. Then he turned outward and conquered his neighbors. He felt very fierce.
But this was not to last. Europe was on the march in Africa, and destiny in the form of King Leopold's agents trod on Loa. They sacked his kingdom with an avarice unimaginable to the natives. Soon nothing was the same… nor would it ever be again.
"A dazzling exhibition of the author's storytelling virtuosity." (The New York Times)