Dragon Medallions

Skye, Jailynn, and Phrena, 17-year-old girls, attend high school at Hirkami Castle. One of the girls pastimes was to explore the unoccupied parts of the castle. During one of these searches, the girls happened upon a room full of treasures. There, Skye found a golden medallion with a dragons head engraved on one side. As she held the coin, it flashed blue and made her tingle from head to toe as if electrified. Suddenly, a dragon mark, like a tattoo, appeared on her right wrist. It was not like the dragon coins face, but that of a dragon in a circle as if to eat its own tail.
Later, the three girls unwittingly traveled through a magic portal to the land of Corux. Corux is a parallel world of ancient ways. It is a land of magic, mages, and royalty. And a dragon awakens