An excellent example occurs in Detective Comics #784-786, which pairs Batman and the original Green Lantern, Alan Scott. This GL debuted back in the 1940s, long before the Hal Jordan version and the spacefaring Green Lantern Corps. DC’s continuity in 2003 had cast Alan as one of the elder statesmen of the DC Universe, essentially the Superman of the Justice Society, and circumstances (mystical, if I recall correctly) had kept him physically in his prime.
Another aspect of the canon at that time: This Green Lantern was Gotham City’s first superhero.
Batman and GL had never teamed up on their home turf, but when a homicide mimics a cold case from Green Lantern’s past, they’ll work in tandem to solve the crime (while a retired Commissioner Gordon, well utilized here, pieces together the clues on his own).
The bright shining knight of the past and the dark knight of the present create a strong visual contrast, and writer Ed Brubaker goes beyond that surface image. In a refreshing shift from his recent jerk trend, Batman displays genuine respect toward the elder superhero, and it’s earned respect. Batman knows his own motivation stems entirely from tragedy, but Green Lantern is a born hero, doing good just because.
GL’s not perfect, though, and the entire situation is a consequence of his lack of perfection. It’s a compelling mystery, not so much in the whodunit sense but in the “why did they do it” sense. And along the way, the story shows us characters who are all too aware of their own limitations.
Writer: Ed Brubaker
Penciler: Patrick Zircher
Inkers: Aaron Sowd and Steve Bird
Cover: Tim Sale
Publisher: DC Comics
How to Read It: back issues; Comixology
Appropriate For: ages 13 and up