Series: Gods & Monsters #1
This was interesting because it was different, but I didn't end up enjoying the investigation portion all that much. It started off fairly strong, with Rupert talking about his "day" job as a chef to ghouls but the investigation seemed to mostly consist of Rupert doing magic spells to talk to people while they tried to kill him.
Despite his ghost tattoos, Rupert's a pretty average (albeit destined for hell unless he cleans up his karma by essentially doing community service) guy and so it was weird that he was drawing all this attention by incredibly powerful supernatural beings. He was terribly outclassed and it just seemed a bit...much?
I may read the sequel but I won't be rushing out to do so. This was only a novella, so maybe there just wasn't enough room for a satisfactory exploration of the world.
I read this for the "Diverse Voices" square for the Halloween Bingo but it could also be used for "Murder Most Foul", "Supernatural", "Monsters" (dragons, ghouls, undead-baby monsters), "Genre: Horror" (pretty gruesome), "Terrifying Women", "Amateur Sleuth", and "Ghost" squares. I might have missed some.