Question: This series of children's horror fiction novellas were created by an American novelist who has been referred to as what?

 He has been referred to as the "Stephen King of children's literature" and is the author of hundreds of horror fiction novels, including the books in the "Fear Street", "Goosebumps", "Rotten School," "Mostly Ghostly," and "The Nightmare Room" series.  Some of his other works include a "Space Cadets" trilogy, two "Hark" gamebooks, and dozens of joke books.  As of 2008, Stine's books have sold over 400 million copies. Robert Lawrence Stine (born October 8, 1943), better known by his pen name R. L. Stine and sometimes known as Jovial Bob Stine and Eric Affabee, is an American novelist, short story writer, television producer, screenwriter, and executive editor. <SEP> Thomas Ligotti (born July 9, 1953) is a contemporary American horror author and reclusive literary cult figure.  His writings have been noted as rooted in several literary genres – most prominently weird fiction – and have overall been described by critics such as S.T. Joshi as works of "philosophical horror", often written as short stories and novellas and with similarities to gothic fiction.  The worldview espoused by Ligotti in both his fiction and non-fiction has been described as profoundly pessimistic and nihilistic. " The Washington Post" called him "the best kept secret in contemporary horror fiction." <SEP> Goosebumps is a series of children's horror fiction novellas by American author R. L. Stine, published by Scholastic Publishing.  The stories follow child characters, who find themselves in scary situations; usually involving monsters and other supernatural elements.  From 1992 to 1997, 62 books were published under the "Goosebumps" umbrella title.  Various spin-off series were written by Stine: "Goosebumps Series 2000", "Give Yourself Goosebumps", "Tales to Give You Goosebumps", "Goosebumps Triple Header", "Goosebumps HorrorLand", and "Goosebumps Most Wanted".  Another series, "Goosebumps Gold", was never released.  "Goosebumps" has spawned a television series and merchandise, as well as a feature film, starring Jack Black as Stine. <SEP>  Sixty-two books were published under the "Goosebumps" umbrella title from 1992 to 1997, the first being "Welcome to Dead House", and the last being "Monster Blood IV".  Twenty-two of the books were reprinted under the "Classic Goosebumps" title with brand new cover designs and special bonus material, including interviews with the author.  Nine were also made into comic books under the "Goosebumps Graphix" title.  These were released in three groups: "Creepy Creatures", "Terror Trips", and "Scary Summer".  There were also two hardcover reprint collections: "Goosebumps Collection" and "Monster Edition". Goosebumps is a series of children's horror fiction novellas created and authored by R. L. Stine.  Nine books were released under the "Goosebumps Collection" title and were split into three groups: "Living Dummy Collection", "Campfire Collection", and "Monster Blood Collection".  Another twelve books were released under the "Monster Edition" title and were split into four groups, the first three of which were simply numbered while the fourth was called "Fright Light Edition".  Some of the books were also adapted for television.