Star Wars: Splinter of the Mind's Eye (1995-1996) #4 (of 4)
Mimban is like a million other planets in the galaxy—a lot of trees, too much mud, and not much else. But one of Mimban's abandoned temples holds a powerful gem—the Kaiburr crystal—capable of magnifying and clarifying one's perception of the Force. Luke and Leia know it's there—somewhere—and so does Darth Vader. And that makes Mimban a whole lot livelier right now than those other planets!