This review is also posted on my blog, Anatea's Bookshelf. 
 This book is a lot different than Shiver. I liked some thing better in this book, but than again, I liked some things better in Shiver. 
 For example, in Shiver I liked that in the beginning of every chapter there was a temperature, and it's not there in Linger anymore. It is important for wolves shifting, and I liked it better when it was there insted of always having to look how is the weather in the book. 
 Also there was to much past in this book. Characters constantly remembering of past is kinda annoying. I have a feeling Maggie Stiefvater is loosing the plot a little and keeps adding their memories to make the story longer. 
 The thing I really liked in this book is reading the book from Isabel's and Cole's POV. I feel it helped to understand better some of the characters by reading from their point of view. 
 And in general, I really like both characters. I might even go as far and say I like them better than I like Sam and Grace. I think they would make a really good couple if they were together, and I really like their relationship. They're very alike. They both act like they don't care about stuff, but they do actually, and they can only admit it to each other. 
 What I don't like is Cole/Sam relationship. I don't know what Sam has against Cole so much. Not everybody is the same. He doesn't even to try and understand him. He just jumps to concluisions about him, without really knowing what going on with Cole. Everyone who thinks different is wrong according to Sam. I completly agree with this Cole's statement "Wanting to be a wolf doesn't automaticly make you a bad person, and wanting to be human doesn't make you a good one." 
 I liked that Grace has became a good friends with Isabel, and that she actually started acting like Rachel's friend and include her into some of the things. That's what best friends do, they tell things to each other. 
 Also I liked that Grace finally became a wolf at the end of the book. She got her wish come true, and even if it ment loosing Sam again. I can't wait to see what happens next in Forever. 
 Oh yeah, and Sam's lyrics again. I mean come on, even I could think of better ones, and I'm not creative. "I'm an equation that only she solves / these Xs and Ys by other names called / My way of dividing is desperately flawed / as I multiply days without her." Who can think of such nonsense? I mean really. It is really annoying to have to read such bad lyrics. They are the only reason I rated this book 4 stars. 
 Alltogether, it was a rather good book, and I loved the plot very much.