The Great Shell Dome was the holding place of the Fitsay Sun Caves where the Golden Sun was held. Erected on Sedri by Cardo and his followers as a home for the Priests of the Sun, the only beings they saw fit to view the artifact. The shell itself was made of a huge number of varnished seashells so that the overall shell was nearly impervious. The Dome was destroyed when Pek, Fala, and a group of agents of the Rebel Alliance cornered Karak within. Linking their minds to the artifact it exploded, spreading debris across the ocean.