The Mystery of Edwin Drood

The Mystery of Edwin Drood is the final novel by Charles Dickens. It is a mystery indeed; the serial novel was just half completed at the time of Dickens' death - leading to much speculation how it might have ended.
The novel is named after Edwin Drood, one of the characters, but it mostly tells the story of his uncle, a choirmaster named John Jasper, who is in love with his pupil, Rosa Bud. Miss Bud is Drood's fiancée, and has also caught the eye of the high-spirited and hot-tempered Neville Landless! Landless comes from Ceylon with his twin sister, Helena. Neville Landless and Edwin Drood take a dislike to one another the moment they meet.
The story is set in Cloisterham, a lightly fictionalised Rochester (in Kent, England). Rochester is close to Dicken's country house Gad's Hill Place, where the final chapter was written and where Dickens died.