The Blood of Olympus - Rick Riordan Julia Bock

The Blood of Olympus is the last book in Riordan's Heroes of Olympus series and is 502 pages long.
         Disguised as an old man and two young maids with the help of Hazel's mist, Jason, Piper, and Annabeth go into Odysseus's old palace to retrieve information. While in side, Jason is called out by a man who goes by the name of Antinous who questions why Iros is here. Jason, now realizing the old man he was disguised as was in fact Iros, he tries to cover up his true identity by playing along with whatever facts Antinous spills about Iros. During the conversation, one of the ghosts accidentally talks about how Gaea is not allowing demigods into the Acropolis. Though the ghost is stopped short by Antinous who kills him. A previous praetor of Rome approaches Jason. When he does, it turns out that the praetor is Michael Varus, who had died losing the twelfth legions eagle in Alaska. Michael stops Jason and explains that someone has come to see him. A ghost then appears, claiming to be Jason's mother, Beryl Grace.
             Beryl exclaims that Jupiter had made her leave the wolf house. She tries to convince Jason to fight for Gaea, but is unsuccessful in doing so. Once the conversation comes to a close, Beryl Grace disappears as an insanity spirit. While Jason and his mother were talking, Jason's disguise had broke, leaving all the monsters to attack Jason after it was over. During the fight, Jason is stabbed in the stomach by Michael. Before Piper kills the ghost, Michael tells Jason that he will die a Roman. Annabeth then runs outside to signal the captain of the Agro II, Leo Valdez. After seeing the signal, Leo asks Frank Zhang to transform into an animal to fly down and get Jason. The story continues with the demigods Frank, Leo, Piper, Annabeth, Jason, Percy, and Hazel being told by Juno to stop Olympia before she gets out of control and find the twins who are hiding from Jupiter.