The Heroes of Olympus: The Demigod Diaries is set to be released August 14, 2012 and is the companion book to the one of the main series The Heroes of Olympus. Rick Riordan officially announced the book on January 9th, 2012 on his blog. His son, Haley Riordan has written a short story in the book. Recently featured: Dionysus | Polyphemus | Prometheus | The Battle of the Labyrinth | Hestia |