Annabeth and Percy are standing at the gates of hell. If they and the other five halflings can find the living side of the gates of death and make their way through the menacing powers of the vengeful goddess Gaia, if Percy and Annabeth survive the horror of Hades, then the seven friends can seal the gates of death and prevent the fearsome giants from awakening the goddess Gaia from her prolonged slumber and save all that is dear to them. But if the gates of death are sealed how will Percy and Annabeth escape? But they have no choice. If the Halflings do not complete their task in the short time left, Gaia and her armies will awaken and never disappear. The odds are not good and the task seems impossible. This is the most dangerous and exciting adventure in the world's most successful book series that has left millions of readers around the world speechless. The House of Hades is the fourth book in the Heroes of Olympus series by author Rick Reardon, whose books took the bestseller lists in Israel and around the world by storm. The fifth book in the series, Blood of Olympus, is expected to be published towards the end of 2014. Protected by the Writers' Law 02/2014