Action Comics #570

In "The Mystery of Jimmy Olsen's Alter Ego!", Jimmy Olsen finds himself split by alien radiation into two distinct beings—one polite and considerate, the other brimming with superpowers and an unshakable ego. As the two halves struggle to coexist, the line between hero and self-absorbed force begins to blur.

In "The Superman Who Came to Dinner," Superman is invited to dinner by a grateful man he once saved, only to find himself gradually turning into an uninvited houseguest who overstays his welcome. As the weekend unfolds, the host's growing irritation masks a deeper secret—his rage is the only thing keeping him alive after an accidental alien infection, and Superman's presence may be the key to his survival.