It wasn't a book that I HAD to finish. School started and I was fine with putting this book down, but once school was finished I became completely trapped in the story again. The new characters really added a twist to the story and I loved learning who they were, about their pasts, etc. New characters always bring interest to a story. Vincent and Katies love for the longest time was just boring me. I understand the build up, but I wish this book had more twists to it. It's too much of a build up - TWIST - end. 
 Semi Spoilers: 
 The plot: I saw it coming just like many people. I knew that one of the two people I was assuming were somehow entrapped in what was going on. Specially when Kate started having her own suspicions I knew the author wouldn't make it that simple from her writing style. It's worth a read though to really find in depth of the why for yourself !