The Descendants of Olympus: Titian's Child

Many years after Percy Jackson and his friends saved the world from Kronos, and the rise of Gaia. Art of the Apollo cabin goes on a quest with her twin brother Apollo Jr. only to return with a new boy, no arrows, and a grudge. She told of her journey and how she met the boy, and how she would take revenge on the one who killed her brother. William from the Posiden cabin tries to help Art cope with AJ's death while the boy, Zane, tries to remember who he is. All the while, an evil grows form the depths of Tartarus.