Percy’s change didn’t happen overnight though; it took him the course of the book for his true colors to show. Beginning the book off, Percy has a negative view on life; he thinks that thanks to his ADHD and dyslexia he's going to amount to nothing at life. Little does he know at the time that these two things are his greatest strengths. He finds this out later in the book when he says “I now understand what Annabeth had said about ADHD keeping you alive in battle. I was wide awake, noticing every little detail”. Another thing that that changes throughout the book is the fact that Percy gets stronger and starts to realize that he is indeed very important, so important that Percy is once told that “The Gods have big plans for him”.
Throughout the book he makes a bunch a few friends that could be of great use to him in the future when he tries to defeat Luke. Unfortunately he makes an enemy out of someone you definitely don't want to be enemies with, Ares the god of war. Percy Jackson is quite possibly the most important Demigod since