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.

"The Greek and Roman demigods will have to cooperate in order to defeat the giants released by the Earth Mother, Gaea. Then they will have to sail together to the ancient land--Greece itself--to find the Doors of Death"--

Who were the gods and goddesses of ancient Greece and Rome? What did they mean to the people who worshiped them? Although their time of widespread worship has long passed, the Greek and Roman gods have fascinated and inspired writers and artists for millennia. From Aphrodite to Apollo, Poseidon to Zeus, these are some of the most recognizable characters in Western culture, yet there is a much richer past behind famous paintings of the birth of Aphrodite...

Reborn as the Flame, thirteen-year-old Emily has saved Olympus from destruction but when the gruesome Nirads begin a new invasion, Emily and her friends become entangled in the conflict as old grudges are unearthed and new enemies are discovered.

Gaia, la madre tierra, se ha propuesto destruir el mundo de los mortales con sus tropas de monstruos y gigantes, y solo hay un modo de impedirlo: cerrar las Puertas de la Muerte, por donde estas criaturas están escapando de los infiernos. Y, lo más importante, hay que hacerlo desde fuera ... y desde dentro. Hazel, Nico, Piper, Leo, Frank y Jason han descubierto que la parte exterior se halla en Grecia, en el templo de Hades, dios del inframundo,...

At the conclusion of The Mark of Athena, Annabeth and Percy tumble into a pit leading stragith to the Underworld. The other five demigods have to put aside their grief and follow Percy's instructions to find the mortal side of the Door of Death. If they can fight their way through the Gaea's forces, and Percy and Annabeth can survive the House of Hades, then the Seven will be able to seal the Doors from both sides and prevent the giants from raising...

Moving to Jupiter's palace on Mount Olympus with her friends after being recognized as the Flame, Emily resolves to save her father from the CRU prison and sneaks away only to become entangled in a new invasion by the Nirads.

Se aproxima un futuro difícil: lucha contra monstruos, aventuras por todo el mundo y enfrentamientos con dioses griegos y romanos. ¿A qué peligros se enfrentan los semidioses fugitivos Luke y Thalia cuando se dirigen al Campamento Mestizo? ¿Percy y Annabeth podrán recuperar los objetos que ha robado un gigante que respira fuego? ¿Cómo se supone exactamente que Leo, Piper y Jason tienen que encontrar una mesa andante, esquivar un grupo de...