Helden des Olymp 4: Das Haus des Hades

Percy and Annabeth, along with their friends on their flying ship, the Argo II, have made it to Rome. But now everything is at stake: The Earth Goddess Gaia and her army of giants can only be stopped if they close the Doors of Death from both sides simultaneously. Luckily, Percy and Annabeth have already fallen into the Underworld through a chasm, so they can start their search right away. Meanwhile, their friends must fly to Greece with the Argo II to find the surface side of the gates. It sounds like a piece of cake! But will they really make it in time to prevent the downfall of Olympus?.