Far-Stepper/Of Wide Sea their peace is shattered by the arrival of Zeus. As a challenge from the gods, Zeus hunts and kills Stheno in front of her sister before fleeing the island with the Gorgon's severed head. Seeing her only love die leaves Euryale distraught, and she spends the next thousand years mourning the loss of her sister, while taking revenge on man by luring and eating them. The second act is told primarily in third person, but features sections from the perspectives of Euryale, Medusa and Poseidon. After centuries alone below Mount Olympus, Euryale witnesses her deity parents Phorcys and Ceto return
The Son of Neptune 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