They meet Tombers, a giant flying spider, who helps them in their quest for a way to return home. But first they must seek the assistance of the King of the Hardigons, Arlain. The king wants to assist them but is powerless without the use of 7 magical spheres, known as the Karn. The horrible giant king Gorgon has stolen them, rendering the Hardigons powerless. The Karn is the only power source that can help Christian and Arrowhead return home.
To the dismay of Christian, Arrowhead volunteers their services to the good king Arlain in helping with the return of the crystals. In order to help achieve Hardigon victory, and secure their trip home they must secretly sneak into the Fortress of Shadows, Gorgon s home and find the hidden Karn deep within the dreaded Goop Caves.