I was a little daunted by the size of Unraveling but I'm so glad I read it because it was an absolute thrill ride! 
 Despite clocking in at over 400 hundred pages, Unraveling is very fast-paced and action packed. There are several emotional moments but they never take away from the pacing of the book. The chapters are also titled with the countdown which gives the reader a sense of urgency that the characters are experiencing. 
 Speaking of characters, I feel that Norris creates a well rounded group, with each person having their own sense of individuality. All the characters have a back story and you really get a sense of who they are, from the main protagonist, Janelle, to bad boy stoner, Elijah. 
 I absolutely love Janelle and her narrating. She's a great heroine who is so strong, determined, and loyal, and will stop at nothing to get an answer and protect those close to her. 
 For those who don`t like science fiction, need not fear! While it definitely has it`s scifi aspects, it`s also chocked full of romance, action, and emotion, and never becomes overwhelming. 
 I don't know why it took me so long to read Unraveling but I'm so glad I did because now the sequel is about to come out and I'm dying to know what happens next after that killer ending!