During a desperate quest to save Thalia’s Tree, Y/N and their friends—Percy, Annabeth, and Tyson—infiltrate the Princess Andromeda, a luxurious cruise ship that hides a monstrous truth. The mission turns critical when they are ambushed by Luke Castellan and his forces, resulting in Y/N’s separation from the group. Instead of being thrown into the brig, Y/N is isolated in a lavish suite—a move Luke uses to launch a campaign of psychological warfare. He attempts to rekindle their past romance, using their shared history and the comfort of the ship to convince Y/N that his vision for a new world is the only logical path.