Demi-god Percy Jackson and his friends must journey into the Sea of Monsters to save their camp. But first Percy will discover a secret that makes him wonder whether being claimed as Poseidon's son is an honor or a cruel joke.

When demonic cheerleaders invade his high school, Percy Jackson hurries to Camp Half Blood, from whence he and his demigod friends set out on a quest through the Labyrinth, while the war between the Olympians and the evil Titan lord Kronos draws near.

After learning that he is the son of a mortal woman and Poseidon, god of the sea, twelve-year-old Percy is sent to a summer camp for demigods like himself, and joins his new friends on a quest to prevent a war between the gods.

When the goddess Artemis disappears while hunting a rare, ancient monster, a group of her followers joins Percy and his friends in an attempt to find and rescue her before the winter solstice, when her influence is needed to sway the Olympian Council regarding the war with the Titans.

Cuando las porristas demonacas invaden su escuela secundaria, Percy Jackson se apresura a ir al Campamento Mestizo, desde donde el y sus amigos semidioses emprenden una busqueda a traves del laberinto, mientras se acerca la guerra entre los olimpicos y el malvado senor titan Cronos. When demonic cheerleaders invade his high school, Percy Jackson hurries to Campamento Mestizo, from whence he and his demigod friends set out on a quest through the labyrinth,...

The long-awaited prophecy surrounding Percy Jackson's sixteenth birthday unfolds as he leads an army of young demigods to stop Kronos in his advance on New York City, while the Olympians struggle to contain the rampaging monster, Typhon. "Los mestizos han dedicado mucho tiempo a prepararse para la batalla decisiva contra los titanes, aunque saben que sus posibilidades de obtener la victoria son mínimas. El ejército de Cronos es ahora más formidable...

"Aunque el nuevo curso en la Escuela Meriwether transcurre con inusual normalidad, un simple partido de balón prisionero acaba en batalla compal contra una banda de feroces gigantes. A partir de ahí los acontecimientos se precipitan: el perímetro mágico que protege el Campamento Mestizo es destruido por un misterioso enemigo y la única seguridad con que contaban los semidioses desaparece. Así, para impedir este daño irreparable, Percy y sus...