when does percy get his memory back in the son of neptune
The Son of Neptune On their journey, they encounter Phineas, the blind human who helped Jason, leader of the Argonauts on his journey, and befriend a harpy named Ella that supposedly torments him. They also see the three Cyclopes that Jason Grace, Piper McLean, and Leo Valdez encountered in The Lost Hero. During the trip, the trio learns that the goddess Gaea is awakening from several millennia of slumber with a plan to destroy the gods and the world along with them. Her seven Giant children are being woken, each of whom is matched to fight their counterpart god. Each Giant has the skills to oppose one god and they can only be defeated if the gods and the demigods join forces. This proves to be difficult. Percy and his friends manage to defeat the Alaskan Giant and save Camp Jupiter from destruction. During their journey, Hazel and Frank become true heroes who know how to use their powers and have self-confidence. Percy regains his memory on their return to Camp Jupiter and finds an army of monsters (including Stheno, Euryale, and the three Cyclopes) led by Polybotes attacking it. Percy successfully defeats him with the help of Terminus, his Cyclops half-brother, Tyson and the hellhound, Mrs. O'Leary. At the end of the book, the Greek airship, Argo II arrives setting up the plot for The Mark of Athena.