I'm actually in the middle of rereading the Kane Chronicles to work my way up to the finale and I'm semi-rereading PJO and debating a reread of HoO. If I did it's probably be Batman it was the only character that I ever spent any really amount of time following (though I did have a ridiculous love for the Justice League cartoon in the early 2000's).

:)

(Hazel's not? Or won't be once all the initial familiarizing her with Tu Vishan is done. He can be grumpy at her for taking Annabeth's time or whatever he would do if you want.)