Star Wars: Splinter of the Mind's Eye (1995-1996) #2 (of 4)

Imprisoned by the Imperial forces, confronted by two very violent, very massive creatures known as Yuzzem, Luke and Leia have only one hope of escape: the Mimban Crystal, capable of giving its wielder total, omnipotent mastery of the Force. But Luke's use of the crystal could draw the unwelcome attention of certain … dark powers.