Fitz-James O'Brien was an Irish-born American author whose psychologically penetrating tales of pseudoscience and the uncanny made him one of the forerunners of modern science fiction. The critic August Nemo selected seven short stories by this remarkable author for your enjoyment: - The Diamond Lens. - The Lost Room. - What Was it? A Mystery. - My Wife's Tempter. - The Golden Ingot. - The Child Who Loved a Grave. - Thw Wondersmith.