Heart of Darkness
Heart of Darkness (1899) is a novella by Polish-English novelist Joseph Conrad about a narrated voyage up the Congo River into the Congo Free State in the so-called "heart of Africa". Charles Marlow, the narrator, tells his story to friends aboard a boat anchored on the River Thames. This setting provides the frame for Marlow's story of his obsession with the ivory trader Kurtz, which enables Conrad to create a parallel between what Conrad calls "the greatest town on earth", London, and Africa as places of darkness.
Edge of Darkness
Edge of Darkness is a British television drama serial produced by BBC Television in association with Lionheart Television International and originally broadcast in six fifty-five-minute episodes in late 1985. A mixture of crime drama and political thriller, it revolves around the efforts of policeman Ronald Craven (played by Bob Peck) to unravel the truth behind the murder of his daughter Emma (played by Joanne Whalley). Craven's investigations soon lead him into a murky world of government and corporate cover-ups and nuclear espionage, pitting him against dark forces that threaten the future of life on Earth.
Writer Troy Kennedy Martin was greatly influenced by the political climate of the time, dominated by the Thatcher government, and the aura of secrecy surrounding the nuclear industry – and by the implications of the Gaia hypothesis of environmentalist James Lovelock; these combined to his crafting a thriller that mingled real world concerns with mythic and mystical elements. Kennedy Martin's original ending was more fantastic than that eventually used in the finished serial: he had proposed that Craven would turn into a tree but this was vetoed by members of the cast and crew.