The Demigod Diaries
The Demigod Diaries is a collection of short stories written by Rick Riordan, relating to The Heroes of Olympus book series, containing character interviews, puzzles, a quiz, illustrations of characters, and the first-ever seen pictures of Thalia Grace and Hal, a character introduced in the first story. The stories included are entitled "The Diary of Luke Castellan", "Percy Jackson and the Staff of Hermes", "Leo Valdez and the Quest for Buford," and "The Son of Magic". The collection also includes a short story by Rick Riordan's son, Haley Riordan, which revolves around one of the demigods who fought for Kronos during the Second Titan War and survived Manhattan.