The Brave and the Bold #137

The October 1977 team-up format of The Brave and the Bold brings together Batman and the Demon for "Hour of the Serpent," and the cover by Rich Buckler and Jim Aparo sets a feverish tone — Batman lunges forward mid-battle while a yellow-and-red armored villain recoils, with a prone figure sprawled at their feet and a burst of energy lighting up the teal background. The taunting speech bubble — "You call yourself a Bat Man — now you really ARE one!" — hints at some dark transformation afoot, making this pairing of Gotham's Dark Knight with Etrigan feel genuinely menacing. A solid slice of late-Bronze-Age DC adventure.