More than a worthy sequel to Glow, it surpasses the first book in the series in plot, character realism and development , and in theme. The action is surprising and suspenseful, the romance is downplayed and believable, and the story is like a roller coaster ride. 
 The themes remain the same but more deeply explored, especially in the dynamics between Kieran and Seth. They steal the show in this book, especially Seth as we finally get to spend some real time in his head. He's a compelling narrator, self-deprecating but not obnoxiously so, funny at times, but always clever and complex. Kieran really begins to grow as he reexamines his choices and his situation. Waverly takes a back seat to them, but the way she deals with her trauma, and then finally how she shocks the reader and herself with the results, bring her back to the forefront. 
 Ryan's style manages to be fast-paced and readable enough for her age group, but she doesn't skimp on the details or the complexity. She is not afraid to hurt her characters, or to help them. You won't expect what's coming next. 
 Not to be missed, this is already a favorite of this year.