Sally's parents tragically died in an unfortunate plane crash when she was five.
When Percy was a baby, his father, Poseidon, left to protect him and his mother from evil monsters.
When he was a toddler, his mother married Gabe Ugliano, hoping his horrid smell will mask Percy from monsters, whom Percy despised and called "Smelly Gabe" because of his body odor that smelled like moldy garlic pizza wrapped in gym shorts.
Strange things often happened around Percy, often resulting in him getting into some kind of trouble or getting kicked out of school.
During their night in Montauk, Percy had a vivid dream .
The dream features two animals, which is a horse and a bird attacking each other.
When he was in fourth grade, he accidentally hit the wrong lever on the catwalk when his school was visiting the Sea World Shark Pool and made his class take an unplanned swim.
Percy is a very troubled 12-year-old boy who has been expelled from every school he has ever attended.
Yancy Academy was where his troubles seem to be worse than usual.
He is the head counselor of Poseidon's Cabin and a former Praetor of the Twelfth Legion at Camp Jupiter.
He is currently in a relationship with Annabeth Chase. Percy is named after the famed Greek hero Perseus by his mother for good luck, because his namesake was one of the only heroes who had a happy ending and died a peaceful death.