These two books are the newest books Rick Riordan. All these books are so awesome! The best part is there is another book comming out.The Son of Neptune is about Percy who finds himself in a roman camp, and for some reason they call him son of Neptune. In the Throne Of Fire , the Egyptian Gods have been released and they have some serious problems. Apophis is is rising and the Kanes have on last choice, to revive Ra with the three books of Ra. Do you know that they don't even know where Ra is. Find out when you read it.  If you want more information go on rickriordan.com