Wow. Poor Jace. 
 This book was SO. SURPRISING. Seriously. It's like the series is just getting better and better. 
 So Jace, Clary, Isabelle, Simon, Alec, etc. are still trying to figure out what to do about Valentine. However, this time it's actually interesting. Plus, we get a lovely surprise a little bit toward the end.. 
 Spoilers 
 First, lets talk about Jace. Poor, poor, little Jace. He's so lost. He's like a lost puppy. It's cute and frustrating at the same time. He knows so little. After some vision thingy he considers himself to be a demon, then goes and confesses to his "sister" Clary to act like he thinks he is--evil. Man. I could just slap him. And then, way before that, he thinks Valentine is his father and he's like "DADDY!!!" and it's just....UGH. He should not believe anything anyone says, even if there's enough proof to make it true. QUESTION. EVERYTHING. 
 Next, Simon. Simon-Who? Yeah, I don't know. The only thing I didn't like was the fact that Simon was STILL ALIVE. He needs to die already. He has lost his importance in the second book, and now he's here in the third book for decoration. Although, he is a very nice decoration. I might hang him up on my wall. 
 Clary! You redeemed yourself, girl! Your now awesome and you GOT YOUR MOM BACK! I was so surprised. At first I was like, "Are you one of Valentine's spies..?" and then I just accepted that that was really her lol. But it was just so sudden. The entire battle is centered around Clary (as if that wasn't obvious) and pretty much everyone's survival is centered around Clary. It's crazy! 
 Sebastian. You crapface! I hate you so much. And just when I was about to ship him and Clary too. Goodness. I wasn't exactly surprised to see him betray them though. He was just too amazing. Too amazing is not a good thing. He was too calm and not easily angered and that's just not realistic! Turns out he's Clary's REAL BROTHER. He's JONATHAN. Jace is actually a Herondale! (Don't think I'm happy about that because I hated Will Herondale..) 
 Clary and Jace are how they are because Valentine was experimenting on them. They were getting angel abilities. That's why Clary can draw runes and Jace is just OP. 
 Jocelyn and Luke. 
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 I approve.