Stheno Medusa was beheaded by Perseus, Stheno and Euryale tried to kill him, but failed due to his use of Hades' cap, becoming invisible. Stheno In Greek mythology, Stheno ( or ; Greek: Σθενώ, English translation: "forceful"), was the eldest of the Gorgons, vicious female monsters with brass hands, sharp fangs and "hair" made of living venomous snakes. The daughter of Phorcys and Ceto, Stheno was born in the caverns beneath Mount Olympus. She and her sister Euryale were both immortal, and the third sister, Medusa, was mortal. Of the three Gorgons, she was known to be the most independent and
Far-Stepper/Of Wide Sea to the caverns to hide their shameful lovemaking. After they depart the island, Euryale hears a cry from within and discovers the mortal baby Medusa. Euryale devotes herself to her young sister and becomes a mother figure, bringing purpose back to her life. In her teenage years, Medusa learns of Stheno's murder from Euryale. Furious at the gods, Medusa decides to ascend Mount Olympus to get her revenge, without Euryale's knowledge. Upon arrival at the Temple of Athena, Medusa is met by Poseidon, who proceeds to overcome and subsequently rape her. Athena witnesses the act and curses Medusa, causing all