This wasn't my favourite book in the series. It took a while to get started, and I really felt it was really more of a bridge to the next book. The conclusion was entirely thrilling, yet gut-wrenching, and I hate that I have to wait to find out what happens next! 
 I feel as though the character development has actually taken a step back from everything that was achieved in the past three books. They were strangers to me, all over again. A couple new characters are introduced, and, of course, some new twists for the old characters. It actually felt more like a first book in a new series. 
 On the plus side, I find that Cassandra Clare's writing has matured and blossomed. I truly appreciate the direction she's heading! 
 The series, as a whole, has been so memorable, and I know it will stick with me for years to come. I highly recommend it.