Question: Who is the publisher of the World's Mightiest Immortal , a fictional character, who is a villain to a fictional superhero appearing in American comic books published by DC Comics also known as Shazam ?
Sentence (from "Captain Marvel (DC Comics)"): Captain Marvel first appeared in "Whiz Comics" #2 (cover-dated Feb. 1940), published by Fawcett Comics.
Relevant evidence: No