This is, more or less, a simple chase book. There's not a lot of djinn (or supernatural) in it. I suppose this is good if you like a chase book and you are a little supernatural curious, but if you're looking for a good supernatural story, this isn't it. As far as the chase aspect of this book goes, it's pretty dull. There are some specific plot points that bothered me that I'm putting in a spoiler (view spoiler)[ Is there some reason the djinns couldn't just have tossed their tethers through a mirror to djinn world? Surely they would have been safe there. Maybe this was covered somewhere in the book but I fell asleep reading it or something. Another possible location? Oh, I don't know, maybe fly over the ocean and drop it in there!? Next, why the heck didn't Gavyn just kill Trevor when he was alone with him and invisible. Granted this may not have worked, but surely a bullet to the head would have slowed Trevor down. And this would have been much better than getting caught and tortured. (hide spoiler)] The main character, for some reason, does not come off as very manly. I have a hard time understanding why a women would be interested in him. And he's scared of flying! Come on! I can understand this being unnerving, but surely this would be the coolest thing? And he's always complaining that Ian is grumpy, but Ian didn't come off that way to me. Instead Gavyn just comes off as whiny.