
A Floating City (French: Une ville flottante) is an adventure novel by French writer Jules Verne first published in 1871. It tells of a woman who, on board the ship Great Eastern with her husband, finds that the man she loves is also on board.
“It looked like a sort of small island.”
Jules Férat, from Une ville flottante (A Floating City), by Jules Verne, Paris (Hetzel), 1872. Via archive.org.