Detective Comics #417

Detective Comics #417 (November 1971) teams Batman and Batgirl in the urgently titled "Batman for a Night," and Neal Adams's cover sets the stakes immediately: a figure in a Batman costume cradles an unconscious red-dressed woman on the ground while the real Batman strides in from behind, with Batgirl's anguished speech bubbles asking "Why did I let him be Batman for the night? It killed his sister!" Adams's composition is tense and emotionally charged, making it impossible not to want to know more. As a bonus, the issue also promises two additional features — "Mystery That Edgar Allan Poe Solved" and "Alfred, Armchair Detective" — making this a genuinely packed installment from DC's classic anthology era.