"The Lightning Thief" is narrated in the first person past tense by Percy Jackson, a twelve-year-old diagnosed with dyslexia and ADHD. While on a school trip to the Metropolitan Museum of Art, one of the chaperones, Mrs. Dodds, turns into a Fury and attacks him.Percy's favorite teacher, Mr. Brunner, lends Percy a magical sword-pen to defeat her. After school lets out, Percy goes on a trip to Long Island with his mother, Sally. In the middle of the night, Percy's friend Grover Underwood reveals himself as a satyr and tells them they are in danger. The three drive to a mysterious summer camp, but the Minotaur attacks them, grabs Sally, and causes her to disappear in a blinding flash of gold light. Believing his mother has died, Percy kills the beast with one of its own horns, drags an unconscious Grover into the camp, and soon falls unconscious himself. When Percy awakens, he learns that the camp is called Camp Half-Blood and that he is a demigod: the son of a human and a Greek god. He settles into camp life and meets several other demigods, including Luke Castellan and Annabeth Chase. After a hellhound attacks him after a game of Capture the Flag, he is saved by Chiron and then claimed by his father, the god Poseidon. Chiron explains to Percy how the three eldest male gods—Poseidon, Zeus, and Hades—swore an oath not to have children more than 70 years ago; Percy represents a violation of the oath. This, coupled with the fact that Zeus's master lightning bolt has recently been stolen, has bred much suspicion between the gods.