This book is good and advances Langley's werewolf universe nicely.  The characters that she created in "Without Reservations" appear and continue to develop, especially Jake and Remi.  Langley made clear that they were intended mates in the previous book, but kept Remi from discovering that fact.  He learns it early on here and Langley does a good job of developing a credible plotline for the two to become lovers and mates, and much more.  I won't give any more away other than to say their relationship affects their wolfpack in ways that show Langley developing the "rules" and "facts of life" for her fictitious werewolves in ways that were not clear in either of her two previous works in this series.  In fact, the reason I gave this book four stars instead of five is that in several ways, characters in earlier works were not consistent with some of the "rules" she brought out in this work.  Also, the Remi we see (and become quite fond of) in detail in this book is consistent with the Remi we saw late in "Without Reservation," but does not seem like the same character who pitched a royal fit when he walked in on Chay and Keaton making love in the earlier work.  That made me a bit uncomfortable in the last book, but it worries me more in this one.  Still, both quibbles are minor, enough to downgrade slightly to four or four and a half stars (instead of five), but the characters are a delight, many interesting new ones introduced, a despicable villain introduced, and the way paved for at least one more (probably a whole series) of additional books in this universe.  If you like Langley, you'll enjoy this book and should buy it.