She was called the last Demigod descendant. After every demigod was turned into a stone, she resurface from nowhere and enter the Olympus. There she met her grandparents, the ancient myth, the Greek Gods and Goddesses. The two sides are both shock. But then, the Gods decided to make her do the mission. To kill Medusa and wake up the Demigods from their long sleep. Along with her human friends, they enter the West Stone and face their destiny. Medusa, a Gorgon that is forced to enter Tartarus, she came back and make every Demigod a stone. Except the last descendant, and the last descendant is now a threat to her.