Superman's Pal, Jimmy Olsen #160

This October 1973 issue of Superman's Pal, Jimmy Olsen presents a genuinely unsettling dilemma right on the cover: Superman's punch passes harmlessly through a winged harpy creature while a red-haired Jimmy Olsen is pinned against a stone wall, crying out that the Man of Steel can't do a thing to save him. Nick Cardy's cover art captures the tension beautifully — Superman strains with clear frustration as the ghostly, feathered harpy looms between them, taloned feet dangling and fists raised. "The Secret of Harpy Castle" promises the kind of imaginative, monster-tinged adventure that made this long-running series such a reliable treat in the early '70s.