Maggie Stiefvater never fails to impress me. She can bring a character on, lurking in the back shadows of the stage, singing backup, and let his voice slowly burrow its place in your heart without you even realizing it. Until finally he comes out in one, simple action and just steals your heart so completely as he takes the front stage. 
 So is said for James in her Faerie books. 
 And so is said for Cole St. Clair in these. 
 With his little black Mustang. 
 Sam and Grace struggle to find a way to save themselves and the pack, while Cole and Isabel struggle to help them, and struggle through the addiction they're both forcing upon the other. As Cole fights the Wolf, Isabel fights her father, and as Sam fights his doubts, Grace fights to stay human. 
 But fights can't always be won. 
 And then the shots begin to fall.