Crisis on Infinite Earths was DC’s first huge crossover series. It pulled together not only every DC character, but also characters inherited from defunct companies such as Fawcett and Charlton. The series’ real-world purpose was to obliterate all these other universes so DC Comics could move forward with a modern, streamlined continuity in a single universe.
And, by the way, Superman needed to be the only surviving Kryptonian in that new continuity. But no one said Supergirl needed to quietly fade away. (Spoilers ahead, of course.)
In Crisis #7, a multi-universal group of powerful superheroes wages a last-ditch campaign against the forces of the even more powerful Anti-Monitor. (“The Anti-Monitor” may not sound like a formidable threat, but he did already destroy all but five universes. I suppose that follows the rule of “show; don’t tell.”) The first part of the issue focuses on lots of cosmic exposition, which I found much more interesting as a kid, but there’s a nice parable within about the danger of excessive pride—it can destroy entire universes! You’ve been warned, kids.
The real heart of the issue is when the focus shifts to Supergirl. It’s unfortunate that she spends the first half in the background, but that’s mega-crossovers for you. When she leaps into action, though, the issue suddenly becomes great.
Naturally, Superman is the first to reach the Anti-Monitor. Everyone expects him to be their best chance of taking down the villain and saving the remaining universes.
But Superman fails. He gets beat, and beat bad.
So Supergirl steps in and steps up. She’s thinking entirely selflessly. She wants to save her only living relative, not only because she cares about him but also because of what he means to the world. Mind you, she’s spent her entire time on Earth living in his shadow, so she’s assuming she could never possibly measure up to his example.
But she does. She clobbers the Anti-Monitor, destroys his machines, saves those universes for the time being…and then she makes a mistake, but for the right reasons. While she’s got the Anti-Monitor on the ropes, she turns away to urge someone else to get to safety, and the Anti-Monitor exploits the moment to fire the fatal shot. She dies exactly as a hero should—putting others first and herself last.
DC would eventually introduce another Supergirl (as I’ve covered before), and then reintroduce a version closer to the original. But in this continuity, this was the definitive ending for this version of the character. This Kara never came back from the dead.
But in her final moments, Supergirl was better than Superman.
Writer: Marv Wolfman
Penciler: George Perez
Inkers: Dick Giordano and Jerry Ordway
Publisher: DC Comics
How to Read It: back issues; Comixology; included in Crisis on Infinite Earths (TPB)
Appropriate For: ages 10 and up