Question: Who wrote the novel that the film released on a double bill with Once Upon a Mouse was based on?
Sentence (from "The Fox and the Hound"): The 24th Disney animated feature film, the film tells the story of two unlikely friends, a red fox named Tod and a hound dog named Copper, who struggle to preserve their friendship despite their emerging instincts and the surrounding social pressures demanding them to be adversaries.
Relevant evidence: No