In The Burning Maze, the third book in The Trials of Apollo, Jason Grace is killed by Emperor Caligula while in battle. ... Apollo then goes on, in mourning and shock, and by the end of the book, Riordan closes with Apollo remembering the words of Jason; promising himself to remember his death, his sacrifice, his life.Aug 4, 2018 hes just a book charcater.. dont be upset..

brb