The Underground City, or, The Child of the Cavern

The Child of the Cavern (French: Les Indes noires, lit. Black Indies) is a novel by the French writer Jules Verne, published in April 1877. The first UK edition was published as The Child of the Cavern; or Strange Doings Underground, in October 1877 by Sampson Low, Marston, Searle and Rivington of London.

Alternative English titles for this novel include: Black Diamonds, Black Indies, Child of the Cavern, Child of the Cavern, or Strange Doings Underground and The Underground City.

— Excerpted from Wikipedia, the free encyclopedia.