Though the Greek and Roman crewmembers of the Argo II have made progress in their many quests, they still seem no closer to defeating the earth mother, Gaea. Her giants have risen -- all of them -- and they're stronger than ever. They must be stopped before the Feast of Spes, when Gaea plans to have two demigods sacrificed in Athens. She needs their blood -- the blood of Olympus -- in order to wake. The demigods are having more frequent visions of...

"Greek and Roman demigods from the Prophecy of Seven must work together to seal the Doors of Death--and help Percy and Annabeth escape the Underworld in the process"-- Provided by publisher.

Jason, Piper, and Leo, three students from a school for "bad kids," find themselves at Camp Half-Blood, where they learn that they are demigods and begin a quest to free Hera, who has been imprisoned by Mother Earth herself. "Cuando Jason despierta, sabe que algo va muy mal. Está en un autobús camino de un campamento para chicos problemáticos. Y le acompañan Piper --una muchacha (bastante guapa, por cierto) que dice que es su novia y el que parece...

Los tripulantes del Argo II han salido victoriosos de sus misiones, pero estan lejos de derrotar a Gea, la madre Tierra. Ella ha conseguido alzar a todos sus gigantes y planea sacrificar a dos semidioses en la festividad de Spes: necesita su sangre, la sangre del Olimpo, para despertar. Por otro lado, la legion romana del Campamento Jupiter, liderada por Octavio, esta cada dia mas cerca del Campamento Mestizo. La Atenea Partenos debera dirigirse al...