Heroes of Olympus. The Son of Neptune

Percy Jackson, son of Poseidon, God of the Sea, has woken from a very deep sleep and come face to face with two snake-haired ladies who refuse to die.
But they`re the least of his problems. Because Percy finds himself at a camp for half-bloods, which doesn`t ring any bells for him. There`s just one name he remembers from his past. Annabeth.
Only one thing is certain - Percy`s questing days aren`t over. He and fellow demigods Frank and Hazel must face the most important quest of all: the Prophecy of Seven. If they fail, it`s not just their camp at risk. Percy`s old life, the gods, and the entire world might be destroyed . . .