The House of Hades

The House of Hades by Rick Riordan is the fourth novel of the Heroes of Olympus series of books and a wonderful read. Because Percy and Annabeth were the only ones that were able to get trapped in Tartarus and battle for their lives, the rest of their friends set out on the dangerous quest to reach the House of Hades and close the Doors of Death. With an abundance of risk, heroism and unity the climax of this monumental quest will test the very characters that are half- god.