We’re all anxiously awaiting the answer.
Peter Parker, the Spectacular Spider-Man (Vol. 1) #21
Published: c. May, 1978?
Cover Date: August, 1978
“Still Crazy After All These Years”
Writer: Bill Mantlo
Artist: Jim Mooney
Inker: Mike Esposito
Letterer: Joe Rosen
Colorist: Don Warfield
It’s surely a reference to Aunt May as a Grey panther, since this issue is from that period (it’s also why she’s in the hospital). I’d say that’s the book that got her into the movement.
From a quick and shallow search on Google it doesn’t seem to exist a real book by that name.
Anyone know what the GRAY POWER book is referencing? It seems prominently displayed. Was there a similarly-named book out at the time – something Aunt May would be reading?
Is it a reference to Aunt May’s membership in the Grey Panthers?
Or is it just a joke on the “With great power …” line?