Grace was mauled by the wolves at an early age, only to be saved by Sam. Ever since, he's watched her and she's watched him too. When some of the townspeople go hunting the wolves, she finds Sam on her doorstep, almost literally. 
 I love how different Maggie's wolves are; they change into wolves when it gets cold and after a while, they stay wolves instead of changing back to human when the weather's warm. It was a great read and I'm really looking forward to picking up a copy of the next book!