The long awaited book by Rick Riordan is finally out. This book is called "Blood of Olympus" and. came out October 5, 2014. This book is the last of the Hero's of Olympus Series. In this book the seven demigods have to go Greece to stop the Giants. On the way there are conflicts with monsters and such. In the end there is a big fight between the two demigod camps but the end up not fighting and the the seven demigods end up killing Gaea, but one of them is supposedly dead.