In Prince Otto, first published in serial form in 1885, Stevenson uses his genius for adventure and romance to explore some decidedly grown-up themes. The tiny nineteenth-century German state of Grünewald seems to be a principality of the world of fairy-tale. But its ruler is beset in public by the forces of modern politics, and troubled in private by an unhappy marriage. Ill-prepared to deal with either, Otto is forced to choose between them.

Prince Otto: A Romance is a novel written by Robert Louis Stevenson, first published in 1885.The novel was largely written during 1883. Stevenson referred to Prince Otto as "my hardest effort", one of the chapters was rewritten eight times by Stevenson and once by his wife.

Robert Louis Balfour Stevenson (13 November 1850 – 3 December 1894) was a Scottish novelist, poet, essayist, and travel writer. His most famous works are Treasure Island, Kidnapped, and Strange Case of Dr Jekyll and Mr Hyde.st.