"The Wrong Box" is a humorous novel revolving around a tontine, an investment scheme where the last surviving member inherits a fortune. The story focuses on two elderly brothers, Joseph and Masterman Finsbury, who are the last tontine members, and the chaotic events that ensue due to misunderstandings and mistaken identities. Through a series of misadventures involving a lost corpse and a series of deceptions, the plot unfolds with a blend of dark comedy and satire. The novel showcases Stevenson's wit and narrative skill, offering a playful critique of greed and bureaucracy.

"Catriona," is a sequel to his novel "Kidnapped." It continues the adventures of David Balfour, who seeks justice for the murder of James Stewart and battles legal and political intrigue. The story is also a romantic one, as David falls in love with Catriona Drummond. Throughout the novel, themes of loyalty, honor, and love are explored against the backdrop of 18th-century Scotland.

Robert Louis Stevenson wrote a series of essays that cover a wide range of topics, showcasing his versatility and keen observation of human nature. His essays often reflect his personal experiences and interests, including travel, literature, and everyday life. Stevenson's writing is noted for its clear, engaging style and ability to convey complex ideas in an accessible manner. Through his essays, he offers insightful commentary on the social and cultural issues of his time, while also exploring timeless themes such as adventure, morality, and human behavior.