Athena Turned Her Into a Beast
In any case, Athena had to avenge her house’s desecration. However, Poseidon was immortal and older than her. Therefore, Medusa had to take the punishment even though she was the victim. Athena turned Medusa from a beautiful maiden into a hideous beast, unable to stare someone in the eye without turning them into stone. The hair that once attracted compliments as the source of her beauty became venomous snakes. Medusa was now a Gorgon.