"The Prisoner of White Agony Creek" is a Scrooge McDuck comic by Don Rosa.
 The story takes place between "King of the Klondike" and "Hearts of the Yukon" in the series "The Life and Times of Scrooge McDuck" making it part 8B.
 The story shows how Goldie O'Gilt was taken to White Agony Creek.
 As Don Rosa announced his retirement in June 2008, this is his final story.
Magica De Spell is a fictional character of the Scrooge McDuck universe, an Italian sorceress created by Carl Barks.
 She constantly steals or attempts to steal Scrooge McDuck's Number One Dime, which she believes will play a vital role in magically obtaining the same fabulous wealth of its owner.
The following is an episode list for the Disney animated television series "DuckTales".
 The series is based on the Scrooge McDuck character and the "Uncle Scrooge" comic books created by Carl Barks.
 The series stars Scrooge, his grand nephews Huey, Dewey, and Louie and Webby Vanderquack, and several new characters created explicitly for the series.
 While Huey, Dewey, and Louie originated in Donald Duck animated short subjects in the 1930s, their characterization on "DuckTales" approximated that of Barks' comics.
 Although Donald Duck was a major player in the "Uncle Scrooge" comics, he only appeared as a guest star in a few "DuckTales" episodes.
Mau Heymans (born April 14, 1961, Veldhoven) is one of the most productive and popular Dutch Disney comics artists and writers.
 He started his career in 1987.
 He is primarily an illustrator, but is also writing some stories with Kirsten de Graaf.
 Heyman does Scrooge McDuck universe comics for the publisher Oberon.
 His style is Barks-inspired, with long necks and beaks on the ducks.
 Mau's older brother, Bas, is also a Disney comics artist, and the brothers have styles very similar to each other.
June Foray (born June Lucille Forer; September 18, 1917 – July 26, 2017) was an American voice actress who was best known as the voice of such animated characters as Rocky the Flying Squirrel, Lucifer from Disney's "Cinderella", Cindy Lou Who, Jokey Smurf, Granny from the Warner Bros. cartoons directed by Friz Freleng, Grammi Gummi from "Disney's Adventures of the Gummi Bears" series, and Magica De Spell, among many others.
Picsou Magazine (French: "Picsou magazine" , ] ) is a French magazine featuring characters from the Scrooge McDuck universe, as "Picsou" ("coin pincher") is the French name of Scrooge McDuck.
 The magazine was started in 1972.
 It is published on a monthly basis by Hachette, which has a license from the Walt Disney Company for producing and distributing Disney comics in France.
The Donald Duck universe is a fictional shared universe which is the setting of stories involving Disney cartoon character Donald Duck, as well as Daisy Duck, Huey, Dewey, and Louie, Scrooge McDuck, and many other characters.
 The world is a part of the Mickey Mouse universe, but is more detailed.
 Life in the Donald Duck universe centers on the city of Duckburg, usually located in the fictional U.S. state of Calisota, analogous to Northern California.
 The world also incorporates several other real and fictional locations, as well as historical figures and a fictional timeline, which is followed with varying degrees of consistency.
Alan Burnett (born 1950) is an American television writer-producer particularly associated with Warner Bros.
 Animation, Hanna-Barbera Productions, DC Comics and Walt Disney television animation.
 He has had a hand in virtually every DC animated project since the waning years of the "Super Friends".
 Burnett's contributions for Disney were largely a part of the 1990s "Disney Afternoon", where he was attached to the "Disney's Adventures of the Gummi Bears" and various projects set in the Scrooge McDuck universe.
 Because of his primary focus on televised animation, he has occasionally been involved in film projects related to a parent television program.
 He is a graduate of the University of Florida and has an MFA in film production from the University of Southern California.
The Clan McDuck is a fictional Scottish clan of cartoon ducks from which Disney character Scrooge McDuck is descended.
 Within the Donald Duck universe, the clan is related to the American Duck family through the marriage of Hortense McDuck and Quackmore Duck, Donald's parents.
Flintheart Glomgold is a fictional character in Disney comic books, created by Carl Barks in 1956.
 He is a South African white duck and the archenemy of Scrooge McDuck, usually portrayed as an ambitious, ruthless, and manipulative businessman who shares many of the same qualities as Scrooge—the drive for massive wealth, and the and creativity to obtain the same—but he lacks any of Scrooge's tendencies towards generosity and compassion.
 In Don Rosa's "The Life and Times of Scrooge McDuck" he is said to be a Boer.

Question: June Foray was the voice of a fictional character of the Scrooge McDuck universe, who is an Italian sorceress created by who?
Answer: Carl Barks