"Mythological monsters and gods of Mount Olympus seem to be walking out of the pages of twelve-year-old Percy Jackson's textbooks and into his life. And worse, he's angered a few of them. Zeus's master lightning bolt has been stolen, and Percy is the prime suspect. Now, he and his friends have just ten days to find a return Zeus's stolen property and bringpeace to a warring Mount Olympus."--

Demigod Percy Jackson, still with no memory, and his new friends from Camp Jupiter, Hazel and Frank, go on a quest to free Death, but their bigger task is to unite the Greek and Roman camps so that the Prophecy of Seven can be fulfilled.

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 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.

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.