Medusa (DC Comics) sisters Euryale and Stheno. She eventually met the gaze of Poseidon. Athena took notice of this, and cursed Medusa, transforming her hair into snakes and giving her a deadly gaze that turns any who look into her eyes to stone. The hero Perseus was given the task of slaying Medusa and taking her head. After using her decapitated head for his own use, Perseus threw it into the sea as he believed it too dangerous to keep. At some point before Medusa's death, she mated with the cyclops Polyphemus and gave birth to the serpentine giant Cyclon. The god of
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