The Griagh, a real creature despite being perceived as legendary for a long time, was a terrifying monster with four heads. It made its home inside an extensive network of caves located on Endor. The Galactic Empire's construction of a bunker on the moon during the latter part of the Galactic Civil War led to it being awakened. Ultimately, the Griagh met its end at the hands of the Sunstar's power, but not before causing significant destruction, and resulting in the Sunstar's own demise.