
To protect the camp, Chiron sends Percy on a quest. However, just as the trident that claimed him fades away, a hellhound bursts into camp and sends the campers into panic, as these monsters supposedly are unable to enter. Through a series of events during Percy’s stay at camp, Poseidon claims him. During his time there, he befriends Luke, the cabin leader and son of Hermes, becomes an acquaintance of Annabeth, a daughter of Athena, and an enemy of Clarisse, who is a daughter of Ares. For this reason, he is sent to the Hermes cabin, which receives all the unclaimed demigods. Brunner - who is Chiron, the camp director – tell him that he is a demigod - half-mortal, half-god - but his godly parent is unknown.

Three days later, he wakes up in the infirmary of Camp Half-Blood, where Grover and Mr. Enraged, Percy kills the Minotaur and passes out soon afterwards. They are attacked by the Minotaur while driving to the countryside, and in the ensuing fight, Sally disappears in a gold flash when the monster grabs her. Unfortunately, that night, a storm rages, and Grover warns them to flee. Percy goes home on the last day of school, and his mother Sally takes him to the beach house where Percy's parents met long ago. Brunner talking about him, and about a stolen item that was important. However, he unwittingly hears Grover and Mr. Brunner for extra help on Latin for the final the following week. Only Grover seems suspicious when Percy confronts him. Dodds, and when he returns to the class, no one seems to remember the pre-algebra teacher. Brunner, Percy's Latin teacher, tosses a pen to Percy, and when uncapped, it transforms into a sword. Dodds separates Percy from the rest of the class before she transforms into one of the Furies from Greek mythology and attacks him.

However, Nancy believed that she was pushed into the fountain, and lies about the incident to Mrs. At the same time Percy defends his friend, the fountain that they were next to grabs Nancy.

During a school trip to a museum, a bully, Nancy Bobofit, bullies Percy’s friend Grover.

For reasons unknown, he often finds himself in unique situations that get him kicked out of school. Perseus "Percy" Jackson is a twelve-year-old New Yorker who has dyslexia and ADHD.
