Sir Henry Rider Haggard was an English writer of adventure novels set mostly in Africa, and a founder of the Lost World literary genre. Allan and the Ice-Gods is the final volume of the Allan Quatermain saga. Once more Quatermain takes the hallucinogenic taduki drug, as he did in previous novels, and he finds himself reliving as Wi, an civilized man living in the barbaric ice age as part of a clan of cavemen. The novel has been noted as a treatment of the topics of eugenics and evolution in literature and culture.