Jason Grace

Jason is the main character of the second Camp Half-Blood series Heroes of Olympus.

History
Jason is shown to have no memory of his past, not even remembering how old he is.

The Lost Hero
Jason is a 15-16 year old who has lost his memory. He wakes up on a school bus filled with juvenile deliquents from the Wilderness High School in the middle of Nevada on a field trip to the Grand Canyon. He discovers that he has a best friend named Leo Valdez and a girlfriend named Piper, both of whom remembered him perfectly, and that he has been attending the Wilderness School since the beginning of the school year. All he has related to his memory is a gold coin with a picture of a war axe on one side and a face wreathed in laurels on the other, enscribed Ivilivs, and an unexplainable knowledge of Greek mythology. At the Grand Canyon, Jason's supposed gym teacher Coach Gleeson Hedge tells him that he has never seen him before in his class, but can tell that he is a demigod and somehow used the Mist to make the students believe that they know him. Also, he states that he is there to protect Leo and Piper (also demigods) and was told that a third 'package' would arrive. He suspects that Jason is the third, and so he needs to protect him and the others until an extraction team arrives.

Later, an unnaturally powerful storm arrives and the class bully Dylan revealed himself to be a Ventus (storm spirit). Jason, by nature took out his coin, flipped it, and Ivilis became a well balanced, bronze sword. While he and Piper fought off Dylan, Hedge (who revealed himself to be a middle aged saytr) climbed down the canyon wall to retreive Leo, who was thrown down there. After a long battle Dylan takes Hedge away and leaves Leo, Jason, and Piper on the canyon skywalk. Just then two half-bloods arrive on a wagon pulled by pegesi; a guy named Butch and Annabeth. When Annabeth and Butch notice Jason only has one shoe on (seeing as it was blasted into bits) Butch tells them that Annabeth had a vision that a boy with one shoe would help her find one of the campers, who has been missing for three days, Percy Jackson who is implied to be the 'Lost Hero'.

Even though Jason has no memories, he is percieved as a serious person with a moderate sense of humor. He also does heroic things by nature but can't explain why, such as jumping off the canyon cliff to save Piper or getting out his sword to fight Dylan as soon as he attacked his friends, so it is implied he was a heroic person (and probably still is) before he lost his memories.

Interestingly, he mostly uses the roman terms for the mythical creatures he meets, such as calling Coach Hedge a Faun instead of a Satyr.

Powers

 * Jason has the ability to fly, or at least float on air.
 * He is also not harmed by lightning strikes, at least not to the full extent.