The Ivory Child is a novel by H. Rider Haggard featuring Allan Quatermain.
The two visitors are Harut and Marut, priests and doctors of the White Kendah People and they have come to ask Allan Quatermain for his help.
And now our intrepid hero must return to Africa and destroy this evil spirit before it kills every one of the White Kendah People.
E. F. Bleiler stated that although The Ivory Child had a similar plot to other Haggard novels, "the incidents are well-handled and the power of Fate is well indicated.
"[2] The Ivory Child is perhaps the earliest example of the idea of the elephant graveyard being used in fiction.