After saving the world, Annabeth broke up with Percy to devote her time to studying the ancient ways that her mother revealed to her. Alone, Percy decides to devote his time to training the new kids at Camp Half-blood alongside the Romans, his mood changing as swiftly as his sword moves, making it difficult for anyone other than Nico di Angelo to be around him. Still feeling guilty months later, Annabeth decides to set Percy up with the only other human being that can deal with his minutely mood swings, during one of his mood swings and during training. Jason Grace.

1. Stable Ground