Heroes of Olympus. Book 4. House of Hades

Annabeth Chase has done the impossible! Having gone through numerous trials, the daughter of the goddess of wisdom and war has found the lost relic — the statue of "Athena Parthenos"... but could not avoid the treacherous blow from the... defeated enemy. Annabeth fell into an abyss full of monsters, into the terrible Tartarus. Percy Jackson shared this fall with her. And even finding themselves in Tartarus, the heroes remain heroes! Now Percy and Annabeth are making their way through dark lands, full of despair, poison, and fear... to find the Gates of Death and try to seal them from the inside. Meanwhile, the team of "Argo II" is heading from Rome to Greece, toward new adventures and dangers. Friends must enter the legendary House of Hades and meet Percy and Annabeth there. For only by joining forces, will the demigods be able to close the Gates of Death and save our world from immortal monsters... Rick Riordan's new cycle continues the story of Percy Jackson and tells about the adventures of new heroes! Before you is the fourth book of the "Heroes of Olympus" cycle.