A Master of Djinn by P. Djèlí Clark
There are several short stories set in the same world as A Master of Djinn and I do wish I had read them first. A Master of Djinn does a fabulous showing us this Cairo and introducing the character, but the events from at least two of the stories are mentioned and I think reading them would have given me a better background. I may actually go back and read them now - I did love the world.
A Master of Djinn is more or less a murder mystery set in a steampunk alternate 1912 Cairo where djinn live and work among mortals. Our investigator is Fatma from the Egyptian Ministry of Alchemy, Enchantments, and Supernatural Entities. The dead men and woman are members of an Al-Jahiz Secret Brotherhood, all found murdered, their bodies, but not their clothes, burned to a crisp. Turns out an imposter claimant to be Al-Jahiz returned is running around town causing all kinds of havoc.
Clark...