"This is the story of how young Zeus, with a little help from six monsters, five gods, an enchanted she-goat (that's me), and his mother, became god of gods, master of lightning and thunder, and ruler over all"--Provided by publisher.

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.