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.

"The Underworld usually isn't really meant to be a fun place - but tell that to Hades! He loves the dark and the stinky smell of sulfur. However, there is one thing that Hades is not a fan of: dogs. And when Zeus and his fellow Olympians encounter Cerberus - a snarling, three-headed dog - Hades must conquer his fears and tame the hound so everyone can continue into the Underworld and deposit their Titan prisoner, Oceanus, back where he belongs!"--Information...

"When a flock of angry birds threaten Zeus and his fellow Olympians, they need the help of a new friend--assuming the stranger is actually a friend! After a horrible drought, Zeus and his fellow Olympians are determined to help restore the land as they try to figure out their current mission, to find a special shield called an aegis. Thanks to some grateful villagers, who benefit from the rain and crops that the young Olympians magically create, they...

After learning that he is the son of a mortal woman and the 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. Para concentrarse, o al menos esa es la versi?n oficial. Objeto de burlas por inventarse historias fant?sticas, ni siquiera ?l mismo acaba de cre?rselas hasta el d?a que los dioses del Olimpo le revelan la verdad: Percy es nada...