** spoiler alert ** 
 This book was a bit too "young adult" for me. But more than that, I absolutely hated the ending! I know it is a series and the follow ups probably explained the relationship between Jace and Clary, but, my god,,, claiming or alluding to the fact that these two that were falling in love are actually brother and sister... ugh. I had to put the book down and haven't gone on to read any of the sequels, which is unlike me.