The House of Hades (Heroes of Olympus Book 4): Rick Riordan

The fourth book in the bestselling spin off series from Percy Jackson and the Olympians, featuring the original hero - now in a brand-new look!Seven Heroes.One Prophecy. Destiny Calls. 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. Their five friends must reach the Doors of Death - gateway to the Underworld - if they ever want to see Percy and Annabeth again.But between them and the doors lies a vicious army hellbent on destroying Camp Half-Blood. . .and the whole world with it. If the demigods can fight their way through- and Percy and Annabeth can survive hell itself - they might just have a chance. If they don’t. . .Well, it’s only the whole world at stake. Return to the World of Percy Jackson in the best-selling, brand-new adventure featuring the original hero in Percy Jackson and the Olympians: Wrath of the Triple Goddess - out now!