Miracle Monday is a novel written by Elliot S. Maggin, starring the DC Comics superhero Superman.
Miracle Monday tells the story of Superman trying to stop an entity of pure evil from causing universal chaos.
In the story, Samael, the ruler of Hell, sends his greatest agent of evil, C. W. Saturn, to Earth, to destroy Superman morally.
Ultimately, Superman refuses to kill Kristin, even if it means he would have to spend the rest of his life battling Saturn.
[1][2] Paul Kupperberg credited Maggin for writing the "definitive" comic book story about Man of Steel, and cited all three of his Superman novels as favorites.
She made a cameo appearance in Whatever Happened to the Man of Tomorrow?, the final Superman story by Alan Moore and Curt Swan.