One of the Azran "eggs"
The aura stones are five relics scattered across the world. They were left behind by the Azran Civilization before they were destroyed. The Azran Dome in Kodh revealed them to be located in Phong Gi, San Grio, Torrido, Hoogland, and Mosinnia. When the stones are combined they form a key, which allows the user access to the Azran Sanctuary.