Luke and Leia manage to evade the wandrella by hiding in a well. However, the monster's destruction of the ladder that they used to get into the well forces the pair to temporarily split up from Halla, Hin, Kee, R2-D2 and C-3PO. After agreeing to meet up with the rest, Luke and Leia venture into the planet's subterranean levels. Meanwhile, Darth Vader lands on Mimban, drawn by the report of the presence of Luke and Leia on the planet, as well as that of the legendary Kaiburr Crystal. He takes charge of Grammel's troops and begins the search for the pair. Luke and Leia eventually find Halla and the others captured by a tribe of Coway. In order to free the others, Luke must prove himself in single combat with the tribe's greatest warrior or be killed by the tribe along with the others.