Okay, so even though she is still self-centered and has no respect for people who would lay their lives for her, Sienna does get better. I like how therapy helps her build that progress. I still don't get why Sienna is so vocally abusive to Ariadne and Clary for no reason. The plot picks up the pace too as more characters are introduced but they all are still two-dimensional cardboard cutouts. Hope to find better things in the next book. For now, it's a good light reading amid three heavy books.