This week, I’m not so much looking at a crossover with a particular fictional source as a more generalised era in history, one so distinctive as to practically be a genre unto itself.
And one that fits very well indeed. It’s widely believed that Leiber modelled Fafhrd and the Gray Mouser on himself and his friend Harry Otto Fischer (who co-wrote one of the Lankhmar stories, The Lords of Quarmall), and their exploits knocking around New York City in their misspent youth. Which was, roughly, in the years covered by Prohibition.
Isn’t it nice when things just work?