Question: Fantasy film The Witcher about witcher Geralt of Rivia and A Time of Contempt was written by what author?

Context articles: The Witcher 3: Wild Hunt
The Witcher 3: Wild Hunt – Hearts of Stone
The Hexer (film)
Geralt of Rivia
The Witcher (video game)
Baptism of Fire (novel)
The Witcher 3: Wild Hunt – Blood and Wine
The Witcher
Time of Contempt
Blood of Elves

The Witcher 3: Wild Hunt is a 2015 action role-playing video game developed by CD Projekt RED and published by CD Projekt.
 Based on "The Witcher" series of fantasy novels by Polish author Andrzej Sapkowski, it is the sequel to the 2011 video game "" and the third installment in "The Witcher" video game series.
 Played in an open world with a third-person perspective, players control protagonist Geralt of Rivia, a monster hunter known as a Witcher, who seeks to find his missing adopted daughter on the run from the Wild Hunt, an otherworldly force determined to capture and use her powers.
 Throughout the game, players battle against the world's many dangers using weapons and magic, interact with various non-player characters, and complete main story quests and side quests to acquire experience points and gold used to increase Geralt's various abilities and gear.
 The game's central story features multiple endings that are determined by Geralt's choices made by the player during certain points of the story.
The Witcher 3: Wild Hunt – Hearts of Stone is the first expansion pack for the 2015 video game "".
 Developed by CD Projekt RED, "Hearts of Stone" was released for Microsoft Windows, PlayStation 4, and Xbox One on 13 October 2015.
 The expansion follows Geralt of Rivia coming in contact with a mysterious man known as Gaunter O'Dimm, and his connections to Olgierd von Everec, a cursed nobleman.
Wiedźmin (The Hexer or The Witcher in English) is a 2001 Polish fantasy film by director Marek Brodzki, starring Michał Żebrowski as main character Geralt of Rivia.
 The story is based on the books and stories of The Witcher written by Polish author Andrzej Sapkowski.
Geralt of Rivia (Polish: "Geralt z Rivii" ) is a fictional character and the protagonist of "The Witcher" series of short stories and novels by Polish writer Andrzej Sapkowski, as well as its video game adaptations.
The Witcher (Polish: "Wiedźmin" ] ) is an action role-playing video game developed by CD Projekt RED and published by Atari.
 The game is based on the novel series of The Witcher by Polish author Andrzej Sapkowski.
 The story takes place in a medieval fantasy world and follows Geralt, one of a few remaining Witchers – traveling monster hunters for hire who have supernatural powers.
 The game's system of "moral choices" as part of the storyline was noted for its time-delayed consequences and lack of black-and-white morality.
Baptism of Fire (Polish original title: "Chrzest ognia") is the third novel in the Witcher Saga written by Polish fantasy writer Andrzej Sapkowski, first published 1996 in Polish, and 2014 in English.
 It is a sequel to the second Witcher novel "Time of Contempt" ("Czas pogardy") and is followed by "The Tower of Swallows" ("Wieża Jaskółki").
The Witcher 3: Wild Hunt – Blood and Wine is the second and final expansion pack for the 2015 video game "".
 Developed by CD Projekt RED, "Blood and Wine" was released for Microsoft Windows, PlayStation 4, and Xbox One on 31 May 2016.
 The expansion follows Geralt of Rivia as he travels to Toussaint, a duchy untouched by the war taking place in the base game, as he hopes to track down a mysterious beast terrorizing the region.
 The expansion received universal acclaim from critics.
The Witcher (Polish: Wiedźmin , ), by Polish writer Andrzej Sapkowski, is a fantasy series of short stories and novels about the witcher Geralt of Rivia.
 In Sapkowski's books, "witchers" are monster hunters who (with training and body modification) develop supernatural abilities at a young age to battle deadly monsters.
 The books have been adapted into a film, a television series, video games, and a graphic novel series.
 The series of novels is known as the Witcher Saga.
 The short stories and novels have been translated into numerous languages, including English.
Time of Contempt (Polish original title: "Czas pogardy", early title was translated less literally as "Time of Anger") is the second novel in the Witcher Saga written by Polish fantasy writer Andrzej Sapkowski, first published 1995 in Polish, and 2013 in English.
 It is a sequel to the first Witcher novel "Blood of Elves" ("Krew elfów") and is followed by "Baptism of Fire" ("Chrzest ognia").
Blood of Elves (Polish: "Krew elfów" ) is the first novel in the Witcher Saga written by the Polish fantasy writer Andrzej Sapkowski, first published in Poland in 1994.
 An English translation was published in late 2008.
 It is a sequel to the Witcher short stories collected in the books "The Last Wish" ("Ostatnie życzenie" ) and "Sword of Destiny" ("Miecz przeznaczenia ") and is followed by "Time of Contempt" ("Czas pogardy ").
 It was published in Czech Republic (Leonardo, 1995), Russia (AST, 1996), Spain (Bibliopolis, 2003), Lithuania (Eridanas, 2006), Germany (Deutscher Taschenbuch Verlag, 2008) the United Kingdom (Gollancz, 2008) the United States (Orbit, 2009), Brazil (Martins Fontes, 2013) and most recently in China (Chongqing, 2016).