Question: Which author wrote a novel containing a horror icon known as Pennywise the Dancing Clown?

full_context: Document 1: Robert Englund: Robert Barton Englund (born June 6, 1947) is an American film and stage actor, voice actor, singer, and director, best known for playing the infamous serial killer Freddy Krueger in the "Nightmare on Elm Street" film series. He received a Saturn Award nomination for Best Supporting Actor for "" in 1987 and "" in 1988. Englund is a classically-trained actor.
Document 2: It (character): It, also known as Pennywise the Dancing Clown or Bob Gray, is the title character of Stephen King's 1986 horror novel "It". The character is a creature that preys upon the local children of Derry, Maine, roughly every twenty-seven years, using a variety of powers that include the ability to shapeshift, manipulate, and go unnoticed by adults.
Document 3: Leatherface: Leatherface is a character in "The Texas Chainsaw Massacre" series of horror films and spin-offs. He wears masks made of human skin (hence his name) and engages in murder and cannibalism, alongside his insane family. Leatherface appeared in the first film in the series (1974) and in its six subsequent continuations and remakes. Wisconsin killer Ed Gein, who wore a mask made of human skin, was reportedly the inspiration for elements in the original film. He is considered to be the main antagonist of the franchise because he drives most of the plots and appears in all of the films even though he takes orders from his older family members.
Document 4: Something Wicked This Way Comes (novel): Something Wicked This Way Comes is a 1962 dark fantasy novel by Ray Bradbury. It is about 13-year-old best friends, Jim Nightshade and William Halloway, and their nightmarish experience with a traveling carnival that comes to their Midwestern town one October, and how the boys learn about combatting fear. The carnival's leader is the mysterious "Mr. Dark" who seemingly wields the power to grant the citizenry's secret desires. In reality, Dark is a malevolent being who, like the carnival, live off the life force of those they enslave. Mr. Dark's presence is countered by that of Will's father, Charles Halloway, who harbors his own secret fear of growing older because he feels he is too old to be Will's dad.
Document 5: Pennywise (band): Pennywise is an American punk rock band from Hermosa Beach, California, formed in 1988. The band took its name from the evil clown monster from the Stephen King horror novel "It".
Document 6: Freddy Krueger: Frederick Charles "Freddy" Krueger is a character of the "A Nightmare on Elm Street" film series. He first appeared in Wes Craven's "A Nightmare on Elm Street" (1984) as a burnt serial killer who uses a glove armed with razors to kill his victims in their dreams, causing their deaths in the real world as well. In the dream world, he is a powerful force and almost completely invulnerable. However, whenever Freddy is pulled into the real world, he has normal human vulnerabilities. Krueger was created by Wes Craven, and had been consistently portrayed by Robert Englund since his first appearance. In the 2010 franchise reboot, he was portrayed by Jackie Earle Haley. In 2011, Freddy appeared as a playable character in the video game "Mortal Kombat". Over the course of the series, Freddy has battled numerous survivors including Nancy Thompson.
Document 7: It (2017 film): It: Chapter One, or simply It, is a 2017 American supernatural horror film directed by Andy Muschietti, based on the 1986 novel of the same name by Stephen King. The screenplay is by Chase Palmer, Cary Fukunaga and Gary Dauberman. The first of a planned duology, the film tells the story of seven children in Derry, Maine, who are terrorized by the eponymous being, only to face their own personal demons in the process. The novel was previously adapted into a 1990 miniseries.
Document 8: Horror icon: A horror icon is a person or fictional character that is considered to be significant to one or more genres of horror such as film, literature, or video games. Examples of people considered to be horror icons include directors Stephen King, Kiyoshi Kurosawa, Roger Corman, and Wes Craven, and actors Vincent Price, Barbara Steele, Lon Chaney and Lon Chaney, Jr., Boris Karloff, Bela Lugosi, Robert Englund, Tony Todd, Tim Curry, Brad Dourif, and Christopher Lee. Fictional horror icon characters include such as Dracula, Gill-man, Frankenstein's monster, Michael Myers, Freddy Krueger, Jason Voorhees, Chucky, Candyman, Leatherface, Pennywise the Dancing Clown, Pinhead, and The Mummy.
Document 9: It (novel): It is a 1986 horror novel by American author Stephen King. It was his 22nd book and 18th novel written under his own name. The story follows the experiences of seven children as they are terrorized by a being that exploits the fears and phobias of its victims to disguise itself while hunting its prey. "It" primarily appears in the form of a clown to attract its preferred prey of young children.
Document 10: Universal Monsters: Universal Monsters is a phrase used to describe the horror, suspense and science fiction films made by Universal Studios during the decades of the 1920s through the 1950s. They began with "The Hunchback of Notre Dame" and "The Phantom of the Opera", both silent films starring Lon Chaney. Universal continued with talkies including monster franchises "Dracula", "Frankenstein", "The Mummy", "The Invisible Man", "The Wolf Man" and "Creature from the Black Lagoon". The films often featured Bela Lugosi, Boris Karloff and Lon Chaney, Jr.
Document 11: Boris Karloff: William Henry Pratt (23 November 1887 – 2 February 1969), better known by his stage name Boris Karloff, was an English actor who was primarily known for his typecast roles in horror films that depicted the characters Frankenstein and the Mummy. He portrayed Frankenstein's monster in "Frankenstein" (1931), "Bride of Frankenstein" (1935), and "Son of Frankenstein" (1939), which resulted in his immense popularity. He also appeared as Imhotep in "The Mummy" (1932).
Document 12: Chucky (Child's Play): Chucky is the main antagonist of the "Child's Play" horror film series. Chucky is portrayed as a notorious serial killer whose spirit inhabits a fictional "Good Guy" doll and continuously tries to transfer his soul from the doll to a human body. The character has become one of the most recognizable horror icons, often mentioned alongside Freddy Krueger, Jason Voorhees, Ghostface, Leatherface, Pinhead and Michael Myers, and has been referenced numerous times in pop culture. In 1999, the Chucky character was nominated for the MTV Movie Award for Best Villain for the film "Bride of Chucky". He was created by writer Don Mancini and is portrayed and voiced by Brad Dourif in both live-action and voice-over.
Document 13: Bill Skarsgård: Bill Istvan Günther Skarsgård (born 9 August 1990) is a Swedish actor and model, known for his roles in "Simple Simon", "Hemlock Grove", "Atomic Blonde" and Pennywise the Dancing Clown in the 2017 film "It".
Document 14: Evil clown: The evil clown is a subversion of the traditional comic clown character, in which the playful trope is instead rendered as disturbing through the use of horror elements and dark humor. The modern archetype of the evil clown was popularized by Stephen King's 1986 novel "It". The character can be seen as playing off the sense of unease felt by sufferers of coulrophobia.
Document 15: Wes Craven: Wesley Earl "Wes" Craven (August 2, 1939 – August 30, 2015) was an American film director, writer, producer, and actor. He was known for his pioneering work in the genre of horror films, particularly slasher films, where his impact on the genre was considered prolific and influential. Due to the success and cultural impact of his works in the horror film genre, Craven has been called the "Master of Horror".
ground_truth: Stephen King