Dr. Mist summons Superman to help battle the greatest evil the world has ever known,
and then Superman teams up with the Global Guardians to battle a team of super-villains in The Wizard Who Wouldn't Stay Dead.
A “Crisis on Infinite Earths” crossover! Zapped by an alien ray, Superman hops dimensions and
teams up with Superboy-Prime to battle Polarians on Earth-Prime in the 24-page story, Year of the Comet. Continued in ADVENTURES OF SUPERMAN (1939) #414.