Everyone understands their role and the stakes are high. Everytime they're in battle, you can sense the aura and power coming off of them. And this is true for everyone, which is epic. This is when I feel like there is no weak link, even if the characters think they are. Also, I LOVED hearing Jason's struggles- it was brief and I wish I heard more of it but for the entire series so far, I was annoyed by listening to the perfect golden boy complain about his problems, but now it makes sense. I loved hearing Nico and Reyna's dynamic because they are both SO guarded.