Superman #4/1977

In "Planet der Sklaven," Batman follows a telepathic distress call to a remote planet, where he encounters Laura, desperate to find her missing husband. Held captive by a fanatical cult known as the Futurier, the man's fate becomes entangled with Batman’s mission as the detective is mistaken for their long-lost seventh member. Written by Robert Kanigher and illustrated by Irv Novick with inks by Frank Giacoia, this 1977 story unfolds with tense mystery and unexpected twists, all wrapped in Mike Grell’s striking cover art.