Crag Banyon is a private investigator cut from the same cloth as Sam Spade and Mickey Spillane. Unfortunately, his world is a Terry Pratchett-like mishmash of Christmas elves, underworld demons, anthropomorphic personifications of ideals -- and superheroes. If it's a science fiction trope, it's just another client to Banyon.
In FLYING BLIND, the latest installment of the Crag Banyon Mystery series from James Mullaney, Banyon has to put aside his hobby -- drinking -- to take on two cases: tailing a husband whose rich, smoldering wife suspects of cheating, and sleuthing out the identity of a super-villain who has taken it into his head to be the arch-enemy of the latest cape-and-tights wearing flying super do-gooder, Minus. (Actually, the identity isn't the issue -- it's Doctor Cohen -- but do you know how many Doctor Cohen's there are in the city? And that's just assuming all the MDs!)