H. Rider Haggard 
The Ivory Child 

H. Rider Haggard's book The Ivory Child featuring Allan Quatermain. Two foreigners inquire for Allan Quatermain by his name among the Africans, Macumazana, while he is being sought by two foreigners when Quatermain is visiting Lord Randall. The two guests are Harut and Marut, priests and physicians from the White Kendah People, and they are here to request assistance from Allan Quatermain. The Black Kendah people, worship an evil spirit, and the White Kendah people are at war. The biggest elephant they have ever seen is home to the god's spirit, and no man has ever been able to slay it, except for Allan Quatermain. Now, to stop the evil spirit from annihilating the entire White Kendah People, our brave hero must travel back to Africa.