Jason wakes up in a school bus, next to him's best friend and a beautiful girl. And it is terrified. In fact there is a small problem: he doesn't remember anything about it. And when a terma of storm spirits tries to kill him, something suggests him he will have to come to the head of mystery as soon as possible. Piper doesn't explain why her boy doesn't remember her. For a few days the world seems crazy: his father was volatilized, recurring nightmares torment her and a girl named Annabeth says she is looking for such a Percy Jackson, disappeared from the half-blood field ... Leo has always had an attraction for The fire, and when he arrives at the camp feels strangely at home. Will the reason why everyone tells him that a part of him descends from the gods? Meanwhile she was kidnapped by the giants, threatening to kill her. There is only one way to save it, and only three seeds descendants by ancient Roman divinities can face the company ... Ready age: For 12 years.