Superman #8/1968

In "Superman unschlagbarer Rivale," Superman and Batman celebrate their 1,000th joint mission with a gala, but Batman is troubled—his usual edge dulled by the recent exploits of a mysterious figure named Nightman, who's been aiding Superman without Batman's involvement. With the spotlight on this new rival, Batman is determined to uncover the truth behind Nightman's identity, even as the duo's legendary partnership faces its first real test. Written by Edmond Hamilton and E. Nelson Bridwell, with art by Curt Swan and George Klein, the issue captures the classic dynamic of the Man of Steel and the Dark Knight in a story that quietly challenges their bond. The cover by Kurt Schaffenberger and Wayne Boring brings the moment to life with a striking, dramatic portrait.