Gah, so good. I loved and adored the first book, which left me eager for a sequel RIGHT AWAY. Then somehow I wasn't ready to read this when it actually came out. Which worked out well because I loved, loved, loved reading it now. 
 And once again, the book wrapped up with a cliffhanger and I'm like NEED BOOK THREE RIGHT AWAY. The whole saga of 1920s basically X-Men with superpowers solving supernatural crimes is like Scooby Doo done with flappers. As important as the superpowers, though, are the various cultural backgrounds of each of the Diviners which are each fleshed out and made crucial parts of their characterization. 
 Sidenote: I've read both books in this sequence via audiobook and January LaVoy does a fantastic job with each of the wildly different characters, making each immediately identifiable.