"Are You My Mummy?" from Sandman Mystery Theatre #1 (Vertigo, 1993) by Matt Wagner and Guy Davis
Though technically part of the Sandman franchise, SMT proved Vertigo books didn't need fantastical elements to be successful. A great series of mysteries set in the dawn of the Golden Age, with a hero who looked a lot less trim than his eventual spandexy self, thanks to Guy Davis' gritty, real world art. I'd become a fan of his through Baker Street, so I of course knew he could keep a mystery comic with relatively little action interesting. Great book.