The book's immense success was the result of Haggard's ability to present such fantastic adventures in a gritty, realistic narrative. Using a first-person point of view, Quatermain tells the story in what he calls a "plain, straightforward manner." In this way, Haggard effectively creates the illusion of an honest record of actual events. Quatermain's credibility as a narrator is further enhanced by the fact that he claims not to be a "literary man." He says that his account lacks the "flights and flourishes" found in novels, thereby further suggesting its factuality.

Haggard's use of language enhances this realistic credibility. The style is simple, direct, and conversational, providing both vivid details of these adventures and Quatermain's occasional insights into their significance. His narrative is interspersed with opinions and prejudices, which provide interesting insights into his own personality.

At different points in his story, Quatermain meditates upon profound...