3.75* 
 I think I'm enjoying this Rick Riordan series a little more than the Percy Jackson series. It seems a bit more for the mature reader (even though it is technically still middle grade). I loved having Percy back in this book, but for some reason if felt a little underwhelming compared to the first book in this series. I still loved the sass and attitude from certain characters and liked seeing the character growth in this book. I'm looking forward to seeing how the Roman and Greek camps join up and how they interact with each other considering the Romans consider the Greeks to be such a taboo subject. I will definitely be continuing on in this series. :)