Challengers of the Unknown #70

Neal Adams delivers a gripping cover for this November 1969 entry in DC's long-running adventure series — a massive, looming green creature fills the background as three Challengers in their striking purple-and-yellow costumes struggle in the foreground, one collapsed and unconscious while a red-haired woman stands her ground defiantly. The cover copy cuts right to the tension: a speech bubble accuses betrayal ("Your father killed Prof, and now you're gonna finish us!"), while the bold tagline questions whether the Challs' new costumes were "designed by friend or foe — for death or for life?" Written by Denny O'Neil with interior art by Jack Sparling, "A Scream of Yesterdays!" promises exactly the kind of high-stakes mystery that made Challengers of the Unknown such a compelling corner of the DC universe in 1969.