It's about Percy running away after his moms murder and meeting some friends. Based off of/ inspired by when turtles fly's runaway story on fanfiction.com (Percy is abused)

"Percy?" Annabeth said, looking at him in concern, "Are you okay?" "Yeah," he breathed, "I just-" Percy's sentence cut off as he felt all the blood drain from his face. He felt his stomach lurch menacingly, and he shrugged off Annabeth's hands from his shoulders and flashed out of the room in an instant, leaving them there wide eyed. Within a single second, Percy went from the living room to the bathroom, where he proceeded to empty his contracting stomach. "Percy?!" he heard Frank and Jason call from the living room, and he heard footsteps thumping. It didn't take them long to find him. He hadn't even had time to close the bathroom door. Within a minute, the two of them were standing in the doorway, looking at him in confusion as he violently emptied his stomach into the toilet. "What the...?" Jason said as he looked at Percy.