Well, this should read 3 1/2 stars... The only reason why I gave the 1/2 star is because of the huge preview to the next book. It's a bit early for a "guide" book for this series since there is only 2 books out with the 3rd book later this month and the fourth one in November.
But then I could be wrong, because I've haven't read the Demonica series that ties into this series?
Short, simple read.