This was recommended as an example of strong supernatural-fiction female protagonist.... Well, it was. Occasionally too strong, even; at times heroine Elena clearly as a chip on her shoulder regarding her gender (which is a better sign that she's worried about it than that she's confident in it). But, overall, it's neither an offensively feminist read nor a sadly weak tale of whining and rescue. 
 On the other hand, parts of this book drove me crazy. I am a bit picky here, in that animal behavior is my profession, and I will freely admit that fantasy authors can get away with ethological vagaries in their fictional species, such as werewolves (though even fantasy books read much better if they are believable and consistent). But very often Armstrong would describe her characters' behaviors as "just like real wolves" and then include something utterly ridiculous. The strict totem pole hierarchy rarely exists in healthy wolf packs and the term "alpha wolf" is not used much in scientific literature anymore, sad as that is for both werewolf authors and hack dog trainers. It's just not true that a top-ranking wolf will get an entire deer carcass to himself while others wait patiently for a turn, as the very simplest of internet searches would show. These repeated inaccuracies, quoting pop culture rather than anything to do with the cited "real wolves," made it hard for me to stay in the story and believe the rest. 
 That said, I found other parts of the book quite enjoyable (skimming the usual sex scenes, which bored me as such scenes usually do -- in fact, all of the friends with whom I've discussed reading habits admit to skimming or skipping these obligatory inclusions). If this is her first novel, Armstrong has real potential, if she can invest in some fact-checking.