Jason Grace is a fictional character and the protagonist in Rick Riordan's The हीरोस of Olympus book series, the sequel to the Percy Jackson & the Olympians series. He first appears in The लॉस्ट Hero, the first novel of the series, as a 15 या 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 फ्रेंड्स learn that they are demigods - half-human, half-god - after getting attacked द्वारा 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.

Caius is a fictional character in the Twilight series द्वारा Stephenie Meyer.
Caius is a vampire, one of the three ancient leaders of the Volturi, who are based in Volterra, Italy, and who, according to Edward Cullen, lead a very civilized lifestyle. Caius has a wife named Athenodora, who lives a very retired life in Volterra. He is the most ruthless of all three leaders. Caius was born around 1300 BC, and at some point became a vampire. He was born at least a century before Aro and was transformed into a vampire in his late 40s.