Percy had been walking for days in Tartarus, he’d sacrificed himself so Annabeth didn’t fall into Tartarus. When he got out of Tartarus he looked and felt half dead. He stumble onto the greets of an unknown town, it was to dark to see any hints of where he was. Some homeless people were already eyeing him like they might mug him. All he had was his sword riptide and a picture of Annabeth that he always had. Which kept him sane.