Prester John:

Nineteen-year-old David Crawfurd travels from Scotland to South Africa to seek his fortune as a store-keeper. On the voyage he encounters John Laputa, the celebrated Zulu minister, of whom he has strange memories. In his remote store David finds himself with the key to a massive uprising led by the minister, who has taken the title of the mythical priest-king, Prester John. David’s courage and his understanding of this man take him to the heart of the uprising, a secret cave in the Rooirand. This is a story of lost civilizations, hidden treasures, friendship and betrayal, lions and tigers, witch doctors, and just good old-fashioned adventure. John Buchan wrote Prester John, his sixth novel, in 1910, seven years after he returned from South Africa. It was his first to reach a wide readership across the world, and it established him as the writer of the fast-paced adventures for which he is famous.