The House of Hades: The Graphic Novel (Heroes of Olympus Book 4)From the world of Percy Jackson The fourth novel in Rick Riordan's best selling Heroes of Olympus series now as a graphic novel! Lost in the depths of the Underworld, Percy and Annabeth's lives rest in the hands of their friends and fellow demigods Jason, Piper, Leo, Hazel, and Frank. Unsure if they'll ever see Percy and Annabeth again, the five must put aside their grief and find the mortal side of the Doors of Death to follow Percy's final