Percy is confused. When he awoke after his long sleep, he didn&apos;t know much more than his name. His brain-fuzz is lingering, even after the wolf Lupa told him he is a demigod and trained him to fight. Somehow Percy managed to make it to the camp for half-bloods, despite the fact that he had to continually kill monsters that, annoyingly, would not stay dead. But the camp doesn&apos;t ring any bells with him. Hazel is supposed to be dead. When she lived before, she didn&apos;t do a very good job of it. When the Voice took over her mother and commanded Hazel to use her "gift" for an evil purpose, Hazel couldn&apos;t say no. Now, because of her mistake, the future of the world is at risk.