The Titan's Curse has very strong themes of intra-family violence, displacement, gaslighting and torture, for a start. But, somehow, it handles them in a way that produces a book I would hand to a 10-year-old with no hesitation. It's really good.

Zoe's arc is excellent and Bianca's has a lot of complexity that is handled really well. Thalia gets more of an active role in a way that I definitely approve of. I wanted more female voices at this point in the series (instead of just Annabeth with a little bit of Clarisse), and this one delivers.