Batman #222

Few covers from 1970 capture the cultural moment quite like this one, with Neal Adams's artwork placing Batman and Robin front and center as they confront a procession of four long-haired musicians — one of whom, the speech bubble ominously declares, may be dead. Robin holds up what appears to be an album cover, and the tagline "The clue is on their album cover!" makes it clear this issue is riffing delightfully on one of that era's most sensational pop-culture rumors. Frank Robbins's story, brought to life inside by Irv Novick and Dick Giordano, promises a mystery that blends Gotham's greatest detective with the swinging world of rock music in a way only the Bronze Age of comics could deliver.