H. Rider Haggard 
Wizard 

Pious man of God Thomas Owen makes a pilgrimage to the depths of Africa to try to bring a hopeful message of Christian faith to the struggling masses. Though he expects to meet some resistance and perhaps even to encounter some perilous obstacles along the way, nothing could prepare him for the barrage of curses and spells cast by a mysterious but seemingly all-powerful shaman figure. Will Owen manage to make it out alive?