"What is threatening the general security of both Camp Half-Blood and Camp Jupiter is a force greater than Zeus himself. A force so powerful, it can dominate the gods." The children of the heroes of Olympus live happy, carefree lives. But when the camps' security is threatened, and a prophecy begun, it is time for them to live up to their parents' deeds.

A lonely daughter of Nyx with a terrible curse. A dorky son of Pluto who doesn't quite live up to the name. An innocent daughter of Hecate who's about to learn how awful the world really is. Join Raina, Amicus and Kali's quest to save demigods from one threat they have never faced-darkness itself.