When Percy Jackson discovered that he was actually a demigod, the son of Poseidon, his life changed forever. With his companions, Annabeth and Grover, he completed three daring quests: he found out who had stolen Zeus's lightning bolt, he brought the Golden Fleece to Camp Half-Blood, and he freed the goddess Artemis, who had been captured by the forces of Kronos.

But the adventure in the world of gods and heroes never ends...

[Excerpt from the text on the back cover of the edition]