The Celtic mythology in this story is fascinating and really sets up what promises to be a very interesting series. The story, told from MacKayla Lane's first person perspective, moves at a pretty fast pace but that style of narrative also bogs it down with her immature rants. I'm certain she will grow up fairly quickly given the plot but her mind meanderings were annoying. The other cast of characters, especially Jericho Barrons, are mysterious and layered. MacKayla doesn't know who she can trust and neither can the reader and therein lies another appeal of the story. I am rating this first book in the series 3.5 instead of a 4 because MacKayla's narrative is a distraction. Otherwise, Moning tells a rather complicated and extraordinary tale with style and sophistication, establishing a framework and world for the series. I'm definitely moving on the the next book in the series.