Allan Quatermain is an 1887 novel by H. Rider Haggard, featuring his recurring character Allan Quatermain. This adventure novel serves as the sequel to Haggard's earlier work, King Solomon's Mines. Let's delve into the plot of this captivating tale:

Background: Haggard wrote Allan Quatermain during his summer holiday in 1885, immediately after completing King Solomon's Mines. The novel was first serialized in Longman's Magazine before being published as a complete work.

Plot Summary: At the beginning of the book, Allan Quatermain mourns the loss of his only son and longs to return to the wilderness. He persuades his friends—Sir Henry Curtis, Captain John Good, and the Zulu chief Umslopogaas—to accompany him on an expedition. Their journey takes them from the east coast of Africa into the territory of the Maasai. While staying with a Scottish missionary named Mr. Mackenzie, they encounter a group of Maasai who kidnap Mr. Mackenzie's daughter. The Maasai demand a life as ransom, but instead, the group launches a surprise attack, defeating the Maasai. The adventurers then travel by canoe along an underground river to a sacred lake in the kingdom of Zu-Vendis. In Zu-Vendis, they encounter a warlike race of white-skinned people ruled by two sisters, Nyleptha and Sorais. Both sisters fall in love with Sir Henry Curtis, leading to a civil war. After a victorious battle, Queen Nyleptha becomes the ruler, while Quatermain dies from a wound sustained in the fight.

Reception: Allan Quatermain is considered one of Haggard's most successful works. It exemplifies the lost-race novel genre, setting the stage for many subsequent works in this subgenre. In this thrilling adventure, Allan Quatermain's courage and loyalty are put to the test as he navigates treacherous lands and encounters powerful queens.