I think this may be my favourite PJO book.
It's still just as fun and easy to read as ever, Percy is so naively adorable and yet so strong and brave, Annabeth is simply the best, jealous, ambitious and always so smart, together they are perfect. Although they are not even together yet. Yet. Knowing all of that, I even really like Rachel, it's great to see 'mortals' tag along with demigod quests. And of course Nico. I'd forgotten how much he was present in this one and I love him more and more every day.