Jason wakes up on a bus without his memory. Apparently he has a girlfriend named Piper, and a best friend named Leo.
Who are you?
Piper McLean
Coach Hedge
Leo Valdez
Wind spirits attack, and Coach Hedge is taken away.
Jason, Piper, and Leo are taken to Camp Half-Blood, and discover that they are demigods (half god, half human). They are claimed by their godly parents: Leo is a son of Hephaestus (blacksmith god). Piper is a daughter of Aphrodite (goddess of beauty). Jason is a son of Zeus (king of the gods).