The Blood of Olympus (The Heroes of Olympus, #5)

The Blood of Olympus is an American fantasy-adventure novel written by Rick Riordan, based on Greek and Roman mythology. It was released on October 7, 2014, is the fifth and final novel in The Heroes of Olympus series. It is followed by The Hidden Oracle of The Trials of Apollo. The seven demigods of the Prophecy of Seven—Percy Jackson, Annabeth Chase, Jason Grace, Leo Valdez, Piper McLean, Hazel Levesque, and Frank Zhang—go on their final adventure to defeat Gaea/Terra while Nico di Angelo, Reyna Avila Ramírez-Arellano, and Coach Gleeson Hedge attempt to bring the Athena Parthenos to Camp Half-Blood in order to prevent a war between the Roman and Greek demigods. The novel is narrated in third-person, alternating between the points of view of Jason, Piper, Leo, Reyna, and Nico, making it the first time in the series that someone other than one of the seven demigods of the prophecy is the viewpoint character.