The House of Hades (Heroes of Olympus Book 4)

The House of Hades is the fourth book in the bestselling Heroes of Olympus series, set in the action-packed world of Percy Jackson.<br /><br />The stakes have never been higher. If Percy Jackson and Annabeth fail in their quest, there'll be hell on Earth. Literally.<br /><br />Wandering the deadly realm of Tartarus, every step leads them further into danger. And, if by some miracle they do make it to the Doors of Death, there's a legion of bloodthirsty monsters waiting for them.<br /><br />Meanwhile, Hazel and the crew of the Argo II have a choice: to stop a war or save their friends. Whichever road they take one thing is certain - in the Underworld, evil is inescapable.<br /><br />Rick Riordan has now sold an incredible 55 million copies of his books worldwide<br /><br />'A cracking read' - Sunday Express<br /><br />'Explosive' - Big Issue<br /><br />'Action-packed' - Telegraph