Jason Grace is a fictional character and the protagonist in Rick Riordan's The Giải cứu thế giới of Olympus book series, the sequel to the Percy Jackson & the Olympians series. He first appears in The Mất tích Hero, the first novel of the series, as a 15 hoặc 16-year-old boy suffering from amnesia. He meets Piper McLean, who claims to be his girlfriend, and Leo Valdez, who claims to be his best friend, on a school bus ride to the Grand Canyon. Jason and his two Những người bạn learn that they are demigods - half-human, half-god - after getting attacked bởi a group of storm spirits called venti. They are escorted to Camp Half-Blood, a sanctuary for Greek demigods. After conducting lightning through his weapon, he realizes that he is the son of Jupiter, the Roman form of Zeus, king of the gods. Jason's appearance is similar to Jason of the Argonauts as he appeared with one shoe.