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 ?
Oggar Oggar, the World's Mightiest Immortal is a fictional character from the publisher Fawcett Comics, whose publication rights were acquired by DC Comics in the 1970s. Oggar was a villain of Captain Marvel chronology in Pre-Crisis; he made no Post-Crisis appearances. He first appeared in "Captain Marvel Adventures" # 61 (May 1946, Fawcett Comics). His first appearance in DC Comics was in "World's Finest Comics" # 264 (August 1980).
Rock of Eternity The Rock of Eternity is a fictional location appearing in comic book stories about or relating to Captain Marvel/Shazam! published by Fawcett Comics and later by DC Comics. It first appears in "The Marvel Family" #7 (December 1947) in the story "The Marvel Family Reaches Eternity".