Perseus and Andromeda (Leighton) daughters of Poseidon, the god of the sea. When the nymphs became aware of her claims, they protested to their father, who retaliated by calling up a sea monster called Cetus to patrol and wreak havoc along the coastline of Ethiopia placing Cassiope's kingdom at risk. In response the Queen, together with her husband Cepheus, decided to sacrifice her daughter, Princess Andromeda, to the monster. Andromeda was chained to a rock at the edge of the sea as an offering to the monster. Perseus was travelling back home on his winged horse, Pegasus, after battling with Medusa. He rescued Andromeda
Cultural depictions of Medusa and Gorgons the basis for the myth, having come to Earth three thousand years ago. One was the fabled Medusa who was killed by Perseus, another was killed about fifty years before the events of the episode by an archeologist and the last was killed when Maria Jackson used a mirror to reflect the Gorgon's attempt to turn Sarah Jane to stone back on it. In "Monster High", she has a son named Deuce Gorgon. He wears sunglasses to not turn his friends into stone. Medusa made an appearance in the fantasy-drama series "Once Upon a Time" in the episode "The New