Seven princes of Hell and two twin teenage girls in Sicily... what could go wrong? When her twin turns up murdered, Emilia goes searching for the killer only to discover her sister was mixed up in some Hellish plot to change the world as they know it. Maniscalco has been a favorite author of mine for a while now, as she writes fantastical books that often veer into elements of horror without forcing me to set the book down for a while. This series begins as YA with this book, but does jump into the New Adult category with the second installment. A great series for older teens, college students, or adults who love magic and mystery.