This is a different kind of Chaos story. Percy wasn't betrayed, Annabeth didn't cheat on him, and he didn't leave because he hated everyone at camp. A year after defeating Gaea; Annabeth and Percy are still dating but they have grown apart. It isn't because of someone else, they have just... fallen out of love. They talked about about this and decided that they weren't in love so the broke up and still remained friends. Now that Percy and Annabeth have broken up, Percy wanted to get out of camp and see the world. Percy is visited by Chaos in his cabin and Chaos explains that he would like Percy to join him. Percy agrees and says goodbye to his friends and leaves. But now a new threat has arisen and it is time for Percy to return home.