Overall, it was a good read. I feel like I spent a lot of time in the middle just following everyone through their lives waiting for something to happen but after reading the ending I see why a lot of that was necessary (and it did have a good ending, though there will be a third book now). 
 At first I thought having 4 different people narrating (Sam, Grace, Isabel, and new character Cole) would be confusing, but it actually ended up working out really well. 
 What I didn't like was that the bulk of the story had a HUGE flaw. I won't say what it is, because it will ruin the entire book, but the logic at the end doesn't take into account the time that Shelby broke into Grace's house in Shiver. That, to me, says that the author didn't quite know her story as well as she should have. 
 I'd recommend this as a light read to anyone wanting to continue on with Shiver, but if you're looking for excitement or a book that is really hard to put down, this series may not be for you.