First half of the book was really slow for me, but it got really good. The second half of the book made it for me. I can't even attribute the slowness to being world-building, as happens in many first-of-series books. It was just slow. Great mystery, though. Not a plausible situation, but we are talking fiction and paranormal, right? :-) I liked how it ended up, and I'll be interested at some point to see where else the stories go in this series.