i highly enjoyed this novel, like all of Cassie's books. The plot was interesting and the pace was pretty good. Sebastian is a wicked villian and i loved all of his scenes. We get to see a few more sides of him, not just his evil one, and i felt kinda sorry for him at times. Jace was hot as ever, but he wasnt as funny as he was in the rest of the series, so i missed that side of him. Brother Zachariah was one of my fav characters and this book provides a lot of clues about his identity. 
 Clary was pretty cool and for the most part, i was okay with her decisions and choices. I loved Simon and Isabelle scenes and their relationship progress was more fun to read than Jace/Clary's. Alec pissed me off big-time and totally deserved what he got in the end. Another negative is that Mia/jordon got way too much page time. I do like their characters, but they arent that important and in my opinion, Cassie shoudny have focused on them so much. For me, they just kinda slowed down the pace at times cuz i wanted to skip to Simon or Jace bits. Still, it was a WICKED book and i'm looking forward to the sequel.