After a summer spent trying to prevent a catastrophic war among the Greek gods, Percy Jackson is finding seventh grade unnervingly quiet. His biggest problem is dealing with his new friend, Tyson, a six-foot-three, mentally challenged homeless kid who follows Percy everywhere. But things don't stay quiet for long. Percy soon discovers that there is trouble at Camp Half-Blood: the magical borders that protect Half-Blood Hill have been poisoned, and...

A new mergirl shows up at Mount Olympus Academy-- and Poseidon just might be her perfect match in this seventeenth Goddess Girls adventure. Amphitrite is a mergirl with a big crush on Poseidon but will his quirks make her fall out of like?

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.

After discovering a secret that makes him question the honor of being the son of Poseidon, demi-god Percy Jackson journeys into the Sea of Monsters in an attempt to save Camp Half-Blood.

After discovering a secret that makes him question the honor of being the son of Poseidon, demi-god Percy Jackson journeys into the Sea of Monsters in an attempt to save Camp Half-Blood. "Desde que sabe que es hijo de un diós y una mortal, Percy Jackson espera que el destino le depare continuas aventuras. El nuevo curso en la Escuela Meriwether transcurre con inusual normalidad hasta que un simple partido de balón prisionero acaba en batalla campal...