Lovers of Paranormal discussion

Hello, I have been trying to remember the name of a book that I came across in the hospital that was part of a series that I would love to get into. It involves a woman from Ireland who makes a living as a fortune teller in England, but gets recruited to serve at a sort of hotel that is run by the devil and finds out she is a changeling. The guests at the house are all invited there to be executed for their supposed sins and the other people who work there are various kinds of fae people, like a little girl who can scream loud enough to kill someone. Ringing any bells with someone? I remember it was by a female American author.

Kris wrote: "Hello, I have been trying to remember the name of a book that I came across in the hospital that was part of a series that I would love to get into. It involves a woman from Ireland who makes a liv..."

Maybe The Devil's Detective ?