Question: Who is the Polish author of Baptism of Fire, the third novel in the franchise of short stories and novels about Geralt of Rivia, the monster hunter?

Context articles: Monster Hunter Freedom Unite
Monster Hunter Portable 3rd
Baptism of Fire (novel)
Monster Hunter Stories
The Witcher 3: Wild Hunt
Monster Hunter Stories: Ride On
Monster Hunter Tri
Geralt of Rivia
The Hexer (film)
The Witcher

Monster Hunter Freedom Unite is a 2008 video game in the "Monster Hunter" franchise for PlayStation Portable and iOS.
 It is an expansion of the original "Monster Hunter Freedom 2" and was released on March 27, 2008 in Japan as Monster Hunter Portable 2nd G (モンスターハンターポータブル 2nd G , Monsutā hantā pōtaburu 2nd G ) .
Monster Hunter Portable 3rd (モンスターハンターポータブル3rd ) is a game in the "Monster Hunter" franchise for the PlayStation Portable system that was released in Japan on December 1, 2010.
 The game was released, as a part of the PlayStation Portable Remaster series, on PlayStation 3.
 The game introduces new regions, monsters, and a revised Felyne combat system.
 "Monster Hunter Portable 3rd" is not an update to "Monster Hunter Freedom Unite" or "Monster Hunter Tri".
 "Monster Hunter Portable 3rd" is instead separate to the rest of the series, and most of the game has been entirely remade.
 However, it is also a successor to "Monster Hunter Freedom Unite" as the third game in the Portable series.
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").
Monster Hunter Stories (モンスターハンター ストーリーズ , "Monsutā Hantā Sutōrīzu" ) is a role-playing video game developed by Marvelous and published by Capcom.
 It is a spin-off title set within the "Monster Hunter" series.
 The game was released in Japan for the Nintendo 3DS handheld game console on October 8, 2016, and was later released in North America, Europe and Australasia in September 2017.
 Unlike any of the previous titles in the "Monster Hunter" series, "Monster Hunter Stories" lets players take on the role of a Rider instead of a Hunter, and are now able to battle in an RPG turn-based system.
 Major additions in this installment include hatching eggs and befriending monsters, battling alongside them, executing special Bond attack moves, and customizing your monsters’ abilities and appearance.
 The game features support for Amiibo figurines, with a first set launching alongside the game, and a second set launching two months later.
 A is a loose adaptation of this game.
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.
Monster Hunter Stories: Ride On (Japanese: モンスターハンター ストーリーズ RIDE ON , Hepburn: Monsutā Hantā Sutōrīzu RIDE ON ) is a 2016 Japanese anime television series based on Capcom's "Monster Hunter" series entry Monster Hunter Stories.
 The 48-episode series is produced by David Production, directed by Mitsuru Hongo and written by Natsuko Takahashi, featuring character designs by Takuya Saito and music by Masaru Yokoyama.
 It began airing on Fuji TV on October 2, 2016.
Monster Hunter Tri (モンスターハンター3（トライ） , Monsutā Hantā Torai , "Monster Hunter 3 (tri-)" in Japan) is the third console installment in the "Monster Hunter" franchise, developed by Capcom and released for the Wii in Japan on August 1, 2009.
 "Monster Hunter Tri" was released on April 20, 2010, in North America, April 23 in Europe, and April 29 in Australia.
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.
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.
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.