The Lost Hero

The Lost Hero

A teenage boy named Jason wakes up on a school bus not remembering anything from his past, including anything about who he is. He is sitting next to Piper McLean, a girl who appears to be his girlfriend, and a boy, Leo Valdez, who says he is Jason's best friend. The bus is taking them, along with the rest of their grade at their Wilderness School, on a field trip to the Grand Canyon. While they are there, storm spirits attack the three. Their supervising teacher, Coach Gleeson Hedge, reveals himself to be a satyr, and helps fight the storm spirits. Jason surprises himself by using a sword disguised as a coin to fight off the spirits. During the battle Coach Hedge is captured while defending them. At the end of the battle, two pegasi land next to them carrying two people Annabeth and a boy named Butch. Annabeth was disappointed because she had a vision of Hera telling her that she would find a clue to her missing boyfriend, Percy Jackson, at the Grand Canyon. She was told to look for the "boy with the missing shoe"; Jason lost a shoe in the battle, but has no memories of his own identity, let alone Percy Jackson's whereabouts. 

Jason, Piper and Leo were told that they were demigods (children of a god and a mortal) and are taken back to Camp Half-Blood where they meet other demigod children like themselves. There, Leo is revealed as a son of Hephaestus, Piper as a daughter of Aphrodite, and Jason as a son of Zeus and the brother of Thalia Grace. He remembers his sister while seeing a picture of her in Cabin One. After scarcely 24 hours of learning about their previously hidden identities, the three receive an urgent quest to rescue Hera, queen of the gods, who was captured by unnamed forces. Before the start of their journey Piper had a dream where one of Gaea's sons, Enceladus, tells Piper that she should bring Jason and Leo to him in return for her father who is being held hostage. 

The three friends set off on the back of a giant robotic dragon that Leo had found in the forest and repaired and named Festus (which in Latin means "happy" so they were riding on "Happy the Dragon") on a cross-country quest to save Hera and Piper's father from Enceladus. Their enemies are under orders from Gaea to reawaken her and overthrow the Olympian gods by pulling up their original roots in Greece. On their way, Jason, Piper and Leo meet Boreas the North Wind in Quebec City, a trio of cyclopes in Detroit, the evil Medea in Chicago, King Midas in a heavily secured white mansion, a pack of werewolves led by Lycaon in a cave, and the very unhelpful Lord of the Winds, Aeolus at his castle 60-feet off ground. 

In the end the heroes and their friends, the Hunters of Artemis, manage to save both Piper's father and Hera, whose godly life force was being used to raise the giant Porphyrion. They temporarily stall Gaea's plans, but they were unable to completely destroy the ancient beings, and will have to face them again. With part of his memory returned, Jason realizes that he is a hero from a Roman counterpart to Camp Half-Blood somewhere near San Francisco, CA, and that Hera has switched him with the Greek hero Percy Jackson, who is now at the Roman camp called Camp Jupiter with no memory of his life at Camp Half-Blood. Jason and Percy had been sent as representatives to each other's camps, so that the camps could come together to fight the giants and defeat Gaea.