Following the events of "Phase" Jessica is back in work and confronted by a number of Arson attacks. With very little evidence of how the fires started Jessica suspects an "Ignis" - a Fire elemental may be to blame. During the investigation Jessica discovers that some elementals just want to watch the world burn
Just so-so. I don't recall much of the first book, but I'm sure it engaged me more than this one. I believe the first had a lot more interaction and humor between the two main characters. This had nothing like that.