Donald Herbert Houghton 2 February 1930 2 July 1991 was a British television screenwriter and producer Born in Paris to Scottish parents Houghton started writing for radio in 1951 before moving into film and television in 1958 In the 1970s he was a primary writer for Hammer Films including Dracula AD 1972 The Satanic Rites of Dracula The Legend of the 7 Golden Vampires and Shatter Houghton lived and worked in Australia for a number of years where his credits included The Astronauts 1960 His television work includes Doctor Who for which he wrote the serials Inferno 1970 and The Mind of Evil 1971 the fifth Sapphire Steel television story known informally as Dr McDee Must Die cowritten with Anthony Read Emergency Ward 10 Crossroads Ace of Wands New Scotland Yard The Professionals and at least one episode of CATS Eyes 1985 Houghton also created and wrote for the soap opera Take the High Road 1980 He also wrote three novels Column of Thieves and Blood Brigade and Take the High Road Summers Gloaming