Luke Skywalker expected trouble when he volunteered to follow Princess Leia on her mission to Circarpous to enlist their Rebel underground in the battle against the Empire.  But the farm boy from Tatooine hadn't counted on an unscheduled landing in the swamplands of Mimban...hadn't counted on any of the things that they would find on that strange planet. Hidden on this planet was the Kaiburr crystal, a mysterious gem that would give the one who possessed it such powers over the Force that he would be all but invincible.  In the wrong hands, the cyrstal could be deadly.  So Luke had to find this treasure and find it fast. Accompanied by Artoo-Detoo and See-Threepio--his two faithful droids--Luke and the Princess set out for the Temple of Pomojema...and a confrontation deep beneath the surface of an alien world with the most fearsome villain in the galaxy!

    "Luke . . . what's wrong?"
    He took a couple of unsteady steps.  "What?"
    "We were worried, Master Luke.  You . . ."  Threepio broke off as Luke turned away to stare eastward.
    "He's coming," he murmured.  "He's near, very near."
    "Luke, boy, you'd better start making some sense," Halla said.  "Who's coming?"
    "There was a stirring," Luke whispered.  "A profound disturbance in the Force.  I've felt it before, weakly.  I felt it most strongly when Ben Kenobi was killed."
    Princess Leia inhaled in terror, her eyes widening.  "No, not him again, not here."
    "Something blacker than night stirs the Force, Leia," Luke said.  "This Governor Essada must have contacted him, sent him here.  He'd be especially interested in locating you and me."
    "Who would?"  Halla half shouted in frustration.
    Leia's hands trembled.  She fought to still them.  "Lord Darth Vader," she whispered.