Percy has to escape from Hade's kingdom, Percy came to Hades because Hades had imprisoned Percy's mother, and Hades wanted to keep Percy, and Percy has only three pearls and he also had two friends with him so he decides that he'd leave his mother because if he stayed and his mother go she'd never forgive him.
It shows the idea of racism should be combated
Edit: Pathos, because this picture shows the evilness behind segregation and racism at that time
Being organized
Reviewing notes and rewriting frequently if necessary.
Asking questions if you do not understand even a little thing in the topic.